Category Archives: Lithium Polymer Battery

Do you know about Grepow Company?

Inheriting 20 years of superb battery workmanship, Grepow has been always upholding the idea of high class and quality optimization in production. With outstanding pairing process, safe and reliable raw materials formula, steady and smooth discharge curve, rigorous quality control system, advanced automation equipment, research and development of cutting-edge technology and innovation of workmanship from over 200 people high end professional engineering team, Grepow is the only professional high power battery manufacturer in china that can produce NIMH, Li-PO, LI-FE batteries simultaneously yet maintaining very high standard within the industry. Grepow product is being sold to more than 60 countries around the world. The company has also set up its U.S and German Subsidiary.

The two brands Geshi ACE and Gensace were launched against domestic and overseas RC model markets, and have received a huge amount of responses. They have became very well known brands among RC model fans both domestic and abroad. Geshi ACE and Gensace have been always maintaining the very fine quality and have also gained a very good reputation. With their safe and reliable raw materials formula, advanced production process and rigorous quality control system, Geshi ACE and Gensace have made the batteries that are beloved by many RC model fans. The RC heli/airplane batteries are famous for its high capacity, long flying time, steady performance, outstanding aero shooting results, rarely puffing up and good cycling performance; while the RC cars batteries are showing off its brave, fearless character with its high C rate, super low internal resistance, high explosive strength and strong power during races.

Tattu has been launched few years ago in order to meet the market’s need. It can be separated into Tattu UAV battery and Tattu FPV battery lines. Tattu UAV batteries are industrial made specifically work for UAVs. It overturns the concept of RC models, and it precisely meets the need of UAV flight. It is a high-end UAV battery line that was recognized by the UAV industry once it was launched. Tattu FPV battery line is aiming at providing batteries that are more suitable for FPV racing. Tattu FPV battery come with super high C rate, high explosive power, very strong power drive, safe and reliable features. It was quickly become famous among both domestic and overseas market. It is the first choice and most-recommend to FPV pilots all around the world.

The article source: http://www.genstattu.com/blog/do-you-know-about-grepow-company/

Can’t wait for Toppilot? Please check out the R-Line!

Good news! For those who can’t wait to get through the process of applying a free Toppilot battery, please look forward to our R-Line professional FPV racing batteries.

What is R-Line?

R-Line is a brand new product line specifically designed for professional FPV racing competitions. It’s the selling version of Toppilot batteries.It’s also a subsidiary of the Tattu brand. It’s got higher capacity, lower internal resistance and lower landing temperatures. They are remarkably more powerful than other graphene batteries. Generally, R-Line batteries have the same specs as our popular Toppilot batteries.

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At the moment R-Line includes two items: the 1300mAh 4S 95C and the 1550mAh 4S 95C. R-Line is currently in version 1.0. In the future different versions will also be rolled out to meet the needs of different FPV racing competitions.

When and where can I get it?

R-Line batteries are schedule to be on sale since late August. You will be able to order them from our official shop www.genstattu.com. Due to the high demand R-Line will possibly be available for pre-order. Please follow us on Facebook or Instagram and check back regularly.

Source: http://www.genstattu.com/blog/cant-wait-for-toppilot-please-check-out-the-r-line/

What is FPV and the basic introductory parts of FPV

What is FPV?

FPV is the abbreviation of First Person View, it is a device based on remote control model airplane or remote control cars equipped with wireless camera to transmit images, which can be controlled on the ground.

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The basic common parts of FPV are aircraft kits, antenna, video transmitter, video receiver, image display and storage, remote control, camera and others.

FPV basic introductory parts:

1. Battery:

FPV batteries are generally lithium polymer batteries because of its better comprehensive performance, such as large energy density, light weight, resistance to high current. Even though, FPV cannot fly in a long time in flight, most of them can fly about 20-30minutes. Therefore, for more fun when flight, buying several batteries is a good way to deal with this problem. I recommend the Gens ace & Tattu 1300mAh battery and 1050mAh battery for your FPV battery.

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2.Charger:

The Li-po battery for UAV is in series which means there are several Li-Po cell connect in series internally, so in order to have every cell charges fully, it’s advisable to choose a “Balance Charger”.

3.Motor, ESC and flying control system

The motor consists of brush and brushless motor, brushless motor is very common in photography UAVs, which is powerful and quality. The motor will transmit the power from battery to spin itself speedly and then drive propellers spin to fly. And ESC is the controller of motor, it will transmit the signal infomation of flying system to motor current. The current size through motor is the speed size of propellers.

4. OSD and GPS

The UAVs GPS system is also very important, because one-key return, fixed-point and fixed height, hover and other functions depends on it. OSD is also known as figure transmission, it is the most important in FPV. Cause if you want to really have fun, the delay degree OSD is pretty critic.

5.Remote control channel, handlers and unlock

The size of the remote control and handle feeling is not very important, instead whether the remote control button layout reasonable and complex or not. The remote control channel means the up and down (throttle size), left and right, front and back, left spin and right spin. Quadcopter need to have at least 4 channel to fly safely.

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6.Propeller

Currently, the most commonly used props are the self-tightening pair opposite props. Pilots can purchase multicoloured self-tightening quality props to make your UAVs look more cool. The UAVs flight follow the principle of physics, whose installation is also two opposite sides. It mainly offsets the rotation thrust of spinning to make UAVs get rid of the earth’s gravity and fly in the air.

Source: http://www.genstattu.com/blog/what-is-fpv-and-the-basic-introductory-parts-of-fpv/

Tattu vs Graphene LiPo Battery Performance Tests

The article outlines the Tattu vs Graphene lipo battery testing procedures we used to come up with our results and presents the raw data gathered. Be sure to check out the actual results in our comparison article which will be released next week!

Graphene lipo battery Background

After Bonka announced that they were entering the “graphene” market behind Turnigy, I knew I wanted to do a comparison test pitting “graphene” batteries against each other and their predecessors. After contacting several battery manufacturers, I learned that pretty much everyone was poised to introduce a new range of battery packs, most of which are labeled “graphene”. I was excited about the prospect of comparing these “graphene” packs in total against a top-contender of the “last generation” of batteries.

What is the Graphene?

A little background on graphene. First of all – what it is is a sheet of carbon atoms, aligned in a 2-dimensional crystalline pattern. When it’s synthesis and handling is perfected, it could feasibly be used in the electrodes of the battery to thin the chemical layers that make up the battery and significantly improve both capacity and power. There is also research going into what is called “lithium sulfur” batteries, which use graphene as an integral component to make similar leaps in performance over traditional lithium batteries.
One thing is certain, though – these batteries do have something different going on with them. As you will soon see, they all have performance figures that are eerily similar to each other, and all differ from the “older” style LiPo I threw into the test.

The battery Tests

I performed 3 tests on these sets of batteries, outlined below.

20A Constant Discharge Test

The first test was a constant discharge to 12.8V indicated (3.2V/cell under load). The intent of this test was mainly to see the capacity of each battery. The load I selected was 20A – which is very close to my average flight load when I am not racing. I hooked the battery up to my load cell, a volt meter and my data recorder and let the battery discharge until the voltmeter read 12.8V. I chose 12.8V because it is well into the sharp voltage drop off point of every battery in this test but not so low as to seriously damage the batteries – they all jumped back up to 3.5-3.6V / cell when the load was released. After the batteries were done with the test, they were set aside for 30 seconds and then had their temperature measured. After that, I measured the balance of the pack, recording the voltage difference between the lowest cell and the top cell. Generally, when battery cells are mismatched, it is because they have a slightly different capacity than their mates – since this test is all about totally discharging the battery it is a perfect time to check that. Finally, the batteries were charged back up to full and the amount of charge put back into them was recorded.

40A Stress Test

The second test was a constant discharge to 14V indicated with a load of 40A. The stop point of 14V in this test is well before the batteries fully discharge – the intent was to see how much charge the batteries could push through while holding a decent voltage under high load. 40A is a pretty typical load when racing so I think this test is a good indicator what batteries will hold up well for that purpose. Once the batteries hit 14V, they rested for 30 seconds and their temperature was measured. Finally, they were once again charged back to full and the charge put in was recorded.

Flight Test

The final test was an in-flight test where the battery metrics were recorded with Blackbox. The purpose of this test was to show how the batteries performed when the pilot does bursts of full throttle during an otherwise constant load. Here is the procedure I followed:
1.Take off, fly in a circle using the OSD to keep a constant 20A discharge rate.
2.At 200mAh indicated consumption (on the OSD) do a full throttle pull-out for 3-5 seconds.
3.Descend quickly.
4.Continue flying at 20A in a circle until 700mAh indicated consumption, or 55% of the labeled capacity for the bigger batteries.
5.Do a full throttle pullout for another 3-5 seconds.
6.Descend and land.

What I wanted to see in this test was:

1.How much effect different batteries have on the amount of power available in a climbout.
2.How each battery handled a full power climbout when it was near-fully charged vs when it was close to being depleted.
3.How much voltage sag each battery experienced in a climbout and how quickly it recovered.
4.How an inductive load on the batteries differed from a resistive load.
Again-the original intent of this test was to use some of the ridiculous new N52 motors to really put the fear of god into these batteries. Unfortunately that could not happen for this test because the motors I am using are out of stock and I don’t have the funds to change out all of my motors. I intend to re-test this when I get some new ZMX v2s.

Disclaimer

I wouldn’t recommend anyone treat their batteries like I did in these tests. The in-flight testing is probably fine but batteries in this size really did not like the 20A full discharge and 40A stress test. Most of them got quite hot, especially nearing the end of the 20A test, and one even puffed slightly. Unless you like replacing batteries frequently, I don’t recommend ever discharging below 14V indicated on a 4S pack – your batteries are telling you that they cannot handle the discharge and you should listen. When LiPos are stressed like this, their internals undergo chemical changes which permanently affects their capacity and power delivery capabilities.

The Battery Lineup

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There were five 1300mAh batteries on the block for this comparison test. Dinogy sent us their new Graphene 2.0 packs and Tattu sent us a pre-release version of their upcoming “Pro Pilot” series of batteries. We also obtained a Turnigy Graphene pack and a Bonka Graphene pack for comparison as well. Finally, we have a normal Bonka 1300 75C pack to compare the new packs against.
Revolectrix sent us a very early version of their 1700mAh LiHV “GOPack” . I really wanted to include this pack in the test but struggled on how to do it – none of the other batteries were this big nor were they HV. In the end, I decided to test this battery charged to standard LiPo voltages (that’s 4.2V per cell) and included a standard Tattu 70C 1800mAh battery in the test to compare against. As a result, this isn’t a really fair test for the Revolectrix. I wouldn’t use these results to compare it to any of the other batteries but I do find them interesting. I’m eager to get my hands on one of their 1350 regular packs.

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For more information on these batteries, check out our comparison article, which will be linked at the top of this article when it is released.

The Battery Test Results

The raw data for our tests, complete with the graphs we’re posting below.

20A Constant Discharge Test Results

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Temperature: Measured after discharge, hottest point on battery.
Charge: Amount of charge put back into battery after test.
Cell Variance: Difference between highest cell voltage and lowest in battery.

All of the 1300mAh batteries were very well matched in terms of capacity. In terms of actual performance, the Dinogy and the “normal” Bonka held about .3V less than the other packs throughout the first half of the test, after which all of the packs were pretty much equal. All of the batteries held their voltage quite well up until they were almost entirely discharged – I was actually pretty surprised by how close this was. All of the packs other than the Turnigy Graphene got pretty hot near the end of this test. Definitely hotter than I am normally comfortable with. I was actually really surprised when I plugged the batteries into the cell balancer to find the opposite indication, though – the Graphene lipo battery was way out of spec and the rest of the batteries were pretty well matched. I guess with the lower price on the Turnigy Graphene you do not get as precise of a cell matching.
I graphed the Tattu 1800 70C and Revolectrix GO pack separately to not obscure the 1300mAh graph. In this chart I included the Tattu Top Pilot lipo as well for comparison against 1300 packs. Keep in mind that since the Revolectrix is a HV pack, it was not charged to it’s full capacity. Given that, I think it actually did quite well – managing to keep putting out consistent current all the way down to 12.8V – it actually seems to perform like a regular LiPo throughout the discharge curve, whereas I expected it to drop off somewhere in the 13V range.

40A Stress Test Results

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Cell variance was not performed on this test as all cells were matched on all batteries.
Voltage was only averaged when?load was applied.

I think this test is the most indicative of what these packs would experience while racing on a wide, open course. It’s also where the benefits of whatever technology that’s in them starts to show. Every one of the new battery packs kicked the ass of the “older” Bonka 70C by a large margin in every measureable way. What’s more amazing to me is that all of the new generation of packs were able to perform close to, or better than the Tattu 1800 70C – that’s amazing! It’s basically saying that these new packs can deliver to you the performance of a 1800mAh pack in a 1300mAh pack and weight. They all discharged over half of their capacity (actually – past where I would normally cut off when flying – which is normally 800mAh for 1300 packs) at 40A. That’s pretty damned incredible.
The 1300s all performed pretty similar, again. The Dinogy once again held the same voltage as the Bonka 70C at the low end – albeit significantly longer before dropping off – and the other packs held a higher voltage through the entire test. Voltage of most of pack was always within swinging distance of each other, with the average voltage over the test not varying by more than .07V between the lowest and highest packs. The Turnigy Graphene pack again came down noticeably cooler than the other packs. Maybe that’s because of the extra weight
The Revolectrix pack again showed the best voltage holding capabilities – staying noticeably higher through the entire test and delivering the highest average of all the packs. When it comes to power delivery, this is a damned impressive pack – but once again I can’t say how much of that is because it’s a LiHV in sheeps clothing.

Flight Test Results

For the flight test, I graphed the results of the performance of all of the packs together during the two “burst” cycles of full throttle climbs at 200mAh and 55% pack capacity. In order to better compare the packs, I had to add a few data points to each calculation (up to a half of a second of data) into the burst sections. This is because I could not time each burst to be exactly the same as each other since this was an in-flight test. If you download the Excel sheet above, the raw data is available to compare the adjustments I did. I did not add increased performance – just extended it for a few packs.

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Average voltage and current measured from the start of 20A current draw until the end of the last burst.
Temperature measured 30 seconds after landing. Missing Revolectrix data – it was lost.

Keep in mind that during this test, the batteries are not the limiting factor – it was the power system. All of the batteries in the test were more than willing to give the 80A requested by the motors in the initial climb. They then all performed similarly through both of the climbs with a large initial voltage drop-off followed by relative stability. Power decreased as the miniquad accelerated through the air and the props unloaded. Variations in the air density during the climb or angular changes in the quad can easily account for any of the variance seen in these tests.
Of note is that other than the Dinogy pack, the newer packs all held about .3V more than the “old” Bonka 70C on average throughout the entire test. They also once again trumped the Tattu 1800mAh on voltage holding capability as well. This seems to be the running theme of the test – all of these packs hold their voltage better under load when compared with my “older” reference packs.
I had seen a lot of people talk about how inductive loads (basically – loads that fluctuate rapidly with time due to the PWM motor drivers we use on our brushless motors) affect batteries differently than resistive loads. From the results in this test, I didn’t really see any difference between these types of loads. Perhaps I was not stressing the batteries enough.
I’m really interested to see how these perform with better motors.

Thanks for the Sponsors

A big thanks to Revolectrix, Dinogy and Tattu USA for sponsoring this test by sending us sample packs of their upcoming batteries. Our pocketbook isn’t super deep so it’s only by the contribution of great manufacturers and vendors like these guys that we’ll ever be able to get comparison tests like this. Thanks again.
Source: http://www.propwashed.com/graphene-lipo-battery-performance-tests/

Best uav battery packs for multirotor fly Long flight time

Are you looking for UAV battery packs for your multirotor X8 or X4 etc., but still confusing about which brand is the best one and most suitable for multirotor? For fly long time pls read ahead and you will find out the answer.

How to choose UAV battery packs

Yes, let us come back to this topic now. How to choose the best uav battery? Before that, tell me what do you really command. Here are some questions just need to clarify a few things. How long flight time do you need? How much current is flowing in a ciruit and at what voltage for your multirotor? How much carrying capacity do you plan to? After you choose one battery, you can use this calculator formula to calculate your flight time, flight times =(Battery Capacity * Battery Discharge /Average Amp Draw) * 60

For instance, you choose a UAV battery packs 16000mAh 6s, and calculate the average amp to be around 60 amps, make an assumption that 80% of battery capacity will be used, then the flight time is 12.8 minutes (Results vary from brands).

About smart UAV battery packs

What is smart battery? Smart battery management system (BMS) will smartly manage your battery. As every one knows, lithium polymer is delicate accessories and need the user take maintenance. Which brand is recommended? The Tattu smart 6S 22.2V 12000mAh battery pack is a great choice for large-sized aerial photography vehicles such as the DJI S800, S1000, Gryphon X8, OnyxStar. This battery packs a ton of power in compact, giving you the flight time needed on your heavy-lift aerial photography rigs.

Conclusion for UAV battery packs

For fly a long flight times, choosing the right UAV battery pack is very important. Here I recommend using Tattu lipo which has gained most praise by FPV pilots. The following is Tattu Plus LiPo Battery Review by VidMuze who produces aerial cinematography, films, visual effects, tutorials and equipment reviews. You will make your choice after watching it.

 

Source: http://www.genstattu.com/blog/best-uav-battery-packs-for-multirotor-fly-long-flight-time/

Best 6s lipo battery for sale from Tattu and Gens ace

Maybe you are wandering in the remote control world, and you are familiar with all parts of your hobby models. But how to choose the best 6s lipo battery for your UAV/500 600 RC HELI/FPV/RC hobby drones etc.? Here allows me to introduce the best 10000mah 6s lipo battery for sale from Tattu and Gens ace, which are professional battery for RC hobby and drones.

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The range of 6s lipo discharge rate

Tattu and Gens ace 6s lipo battery packs have capacity from 15C battery to 75C battery, and more high C lipos will be produced. ALL of these high C lipos are beyond the bounds of multirotor, let FPV into the world of 3D flying, show high performance aircraft, and provide more power for you.

The range of 6s lipo capacity

Tattu and Gens ace 6s lipo battery packs have capacity from 1000mAh to 30000mAh, Stable automatic stacking technology endows single cell capacity of 30000mAh, higher than comparable size packs. High capacity, up to 30000mAh, will provide enough energy for your hobby models.

The wide applications of 6s lipo battery

Tattu and Gens ace 6s lipo battery packs are widely used in performance aircrafts such as RC heli 500 600 700 size (MIKADO LOGO500, ALIGN T-REX550/600, GAUI X5, Outrage 550, Hirobo SDX, etc), 180mm 250mm 280mm 310mm FPV Racing (Skylark M4-FPV250, INDY250 PLUS, Vortex, Emax Nighthawk 250, MOJO 280 etc) and big UAV drones such as DJI S800, S800EVO, Walkera QR X800, FreeFly CineStar 6, FreeFly CineStar 8, Freefly ALTA, etc.

Where to buy the best 6s lipo battery?

Here you come to the right place. Tattu and Gens ace 6s lipo battery for sale is via official online shop www.genstattu.com where has Local Service , Quality Assurance , Best Prices and Fastest Shipping. Free shipping over $49.99 in USA, Over $198 in Canada.

Source: http://www.genstattu.com/blog/best-6s-lipo-battery-for-sale-from-tattu-and-gens-ace/

Tattu Toppilot Lipo Battery Desined for FPV Racing Competition

What’s Tattu toppilot lipo battery?

Toppilot lipo is a sponsored version under tattu brand, particularly designed for fpv racing competition. New materials were adopted in this new version.(materials were confidential ,lower internal resistance), Main feature is much more powerful, Some tech department have compared the toppilot version with other brand graphene’s discharge curve,The Toppilot discharge platform is above what we called graphene batteries,Means more powerful,But toppilot lipo is not for sale,only for free sponsor.

Another feedback from pilots who have tested toppilot version,besides the power is more powerful, the temperature after landing is slightly lower than other brands.

top pilots
Another feedback from pilots who have tested top pilot version,besides the burst,the after landing temp is slightly lower than other brands.

toppilot-lipo
Toppilot version is not for sell, You can apply to be a tattu team pilot to try it. Application email to info@genstattu.com, or get the selling version Racing line on genstattu.com. Top pilot has not classified the c rate, but compare to the 75c battery on the market, The new version’s discharge rate is slightly higher, and the peak power lasts longer, full throttle 2 mins without any problems, especially the landing temp is a big advantage compare to the old version.

If you have any questions, please leave your comments on here or email to info@genstattu.com. About toppilot lipo review,look at this video: https://www.youtube.com/watch?v=0PdBcLCl1ZA

Source: http://www.genstattu.com/blog/whats-the-tattu-toppilot-lipo-battery-and-how-to-get-it/

RC lipo battery in excess of discharge and the right use of purpose

RC lipo battery in excess of discharge and the right use of purpose

Some newbies believe that lithium batteries brand much better,ever the higher the value,it is actually far better to use the longer. But often not the case, even the top lithium batteries,over-discharge phenomenon will appear.

The way to make use of the appropriate of lithium battery?

No matter if lipo battery 3.7v or 1.2v NiMH,won’t mean voltage when the battery is thoroughly charged.For lipo battery 5000mah, the basic following complete voltage reaches 4.2v,I think most of the people have the mobile phone batteries universal charge,it output voltage is usually indicated above four.2v.NiMH full charge can reach one.5v. Furthermore to voltage,and then there exists capacity and discharge charge.the capacity from the battery in mah,the discharge fee is definitely an unit with C. In quick,1C for distinctive capacity battery just isn’t precisely the same. 1C discharge signifies that batteries can final for one particular hour. Example: 1500mah capability battery lasted 1 hour of function, the typical latest is 1500ma, namely one.5A,1.5A and that that is definitely if your battery 1C above the nominal highest 10C that the battery discharge recent is 15A… That may be under the battery 15A is safe to make use of. Again 1000mah capacity during the 1C is 1000ma, namely 1A. Should the over nominal 15C. Then the utmost discharge existing is 1A * 15 = 15A, the utmost discharge current of your battery is 15A. Nevertheless, the over perform the batteries 15A, 10C discharge is, in concept, the utmost latest function utilizing 60/10 = 6 minutes . And 1000mah operate to 15A, 15C is discharged on the present concept can be used to operate 60/15 = 4 minutes. So fairly speaking, 1500mah, 10C battery to get applied for any lengthy time points. So get the battery by taking a look at the amount of C is not acceptable. C modest number of discharged battery may well discharge a significant variety larger than C. Connected with this particular capability.

Remote manage model aircraft lithium battery identified as the lithium polymer battery, typically referred to as lithium or lithium batteries. I’ve to 11.1V lithium battery remote control model aircraft for example to illustrate ways to correctly use lithium battery. Commonly, 11.1V lithium battery of remote control model aircraft by 3 lithium batteries in series (gens ace 3s lipo), per piece batteries voltage is 3.7V. The lithium model, cell phones, cameras, etc. The nominal voltage is called marking voltage is obtained through the average working voltage. The actual voltage monolithic lithium batteries is two.75~4.2V, lithium over the subject of electrical energy capability of 4.2V to two.75V discharge obtained. Remote manage model aircraft lithium batteries have to be employed inside of the voltage assortment of two.75~4.2V. The remote management model aircraft lithium battery voltage is decrease than 2.75V belongs excessive discharge, lithium expands, chemical liquids within crystallize, these crystals may perhaps pierce the internal construction with the layer brought on by a quick circuit, make the lithium voltage gets zero. Remote control model aircraft lithium battery voltage is above four.2V belong overcharging, internal chemical reactions too extreme, lithium will blow growth, if it continues to swell charge combustion. No matter if it is over discharge or overcharge could have remote handle model aircraft lithium batteries produce lots of harm.

1.the charge

1-1 Charging present: the charging current have to not exceed the specs guide stipulated highest charging existing (underneath usual situations is 0.five ~ 1.0C or much less), the usage of greater than suggested charging existing may induce the battery charge and discharge performance, mechanical overall performance and protection effectiveness challenges and might bring about heat or leakage. At this time marketed 5C model aircraft battery charging current, charging is not suggested frequent use 5C, so as not to influence battery life.

1-2 charging voltage: the charging voltage shall not exceed the limit voltage (4.2V / single cell), four.25V charge voltage of each part on the highest limit. (Non-straight to enrich my information, this may perhaps result in overcharging the batteries, consumers utilize the battery on account of an error produced by the consequences).

1-3 Charging temperature: The battery should be charged inside merchandise specs prescribed ambient temperature array, otherwise the battery vulnerable to damage. Whenever they locate the battery surface temperature anomaly time (refer to the battery surface temperature exceeds 50°C), should really straight away stop charging.

1-4 reverse charging: Connect the battery optimistic and detrimental, non-reverse charging. In the event the constructive and negative reversed, we are going to not have the ability to charge the battery. Reverse charging the battery will likely be destroyed, and even trigger fever, leak, fire.

2.discharge

2-1 Discharge existing: discharge present might not exceed specifications specified highest discharge existing, high-current discharge capability will lead to the sharp decline inside the battery to overheat and cause swelling.

2-2 Discharge temperature: The battery need to be discharged inside of specifications specified operating temperature selection. Once the battery surface temperature exceeds 70°C, to suspend use until the battery is cooled to area temperature thus far.

2-3 over-discharge: over-discharge can damage the battery can’t be so single battery discharge voltage is reduced than 3.6V.

3. Storage

The battery should be placed in great storage environment, long-term storage battery (more than three months), it can be advisable at a temperature of 10-25°C in addition to a reduced temperature non-corrosive fuel environments. During the long-term storage 14.8v lipo battery each and every 3 months to retain the battery charge and discharge action and guarantee that every cell voltage within the array of 3.7~3.9V.

The Lipo Batteries for RC Motor Project

Lipo battery is used as a power source for quadcopter due to high power to weight ratio. NiMh is more cost-effective, but heavier than Lipo, hence it is not preferred. Lipo battery can be found in a single cell (3.7 V ) in a pack of over 10 cells connected in series produces 37 V. A popular choice of battery for a quadcopter is the 3SP1 batteries with terminal voltage of 11.1V. Battery has peak discharge rate of 25 times the rated capacity and a capacity of 5000 maAh will deliever maximum current of 25 C × 5000 mAh = 125 A.

gens-ace-lipo-battery-4400mah-60c-6-cells

The batteries for RC motor project can be changed depending on what you want to use. I decided to try and keep this bot relatively lightweight by using Lithium Polymer batteries, abbreviated Lipo. Lipo batteries are typically 3.7v per cell and lightweight compared to lead acid for their charge capacity. These batteries must be charged with a Lipo-specific charger and must not be discharged beyond 3.0v per cell or risk catching on fire;so only use these batteries if you understand how to handle them.

Many online hobby shops have excellent pricing on Lipo batteries and chargers, making them affordable even on a budget. I found Gens ace 4s lipo for only $15 each. They have a 20c discharge rate, meaning that by itself, this battery is capable of discharging approximately 60 Amps continuously (3Ah × 20c = 60 A continuous). If you use two of these packs in the parallel, the discharge rate doubles to 120 Amps (6Ah × 20c = 120A).

To get more power to the motors, I decided to place two packs in series to make 22.2Vdc and 3000mAh. You can buy as many of these as syou can afford and place several 22.2V (series packs) in parallel to achieve 6Ah, 9Ah, 12Ah, and so on. The Lipo battery packs weigh only approximately I pround per set, whereas a comparable SLA battery weighs approximately 6 pounds. Of course, the Lipo batteries are about twice the price of a comparable SLA battery, but you should buy only as many Lipo batteries as you need Amp Hour capacity to decrease the weight on your robot.

Alternatively, you can use Sealed Lead Acid batteries to get around having to buy a Lip charger only or worrying about over-discharging. Two standard 7.4v 2200mah lipo battery would fit nicely in this frame. As you can see from Figure 12-21, either type of battery has plenty of room in this frame.

Gens Ace 2S and 3S Lipo Battery Packs Introduction

LiPo batteries changed the RC world when they came out, but they’ve stayed relatively the same for peak voltage. Now Basher Racing by HobbyKing is among a few manufacturers releasing their own version of a high voltage pack labeled LiHV and are available in 6600mAh and 5600mAh hardcase packs. These packs also weigh less and continue to hold higher voltage under load. All of this in a budget-friendly price. Read the official press info from Basher below.

Gens Ace 3S 5000mah Lipo Battery Pack

It is everyone’s dream to run a full race and win the final. In order to do this, you need to get an long lasting lipo battery. Gens has released its Gens Ace, which can give your cars more run time per charge and more power than any other lipo batteries of the same type. Read on to know more about this part!

The Gens Ace lipo 5000mah comes in a hard case lipo 3s 5000mah battery pack. Compared to normal stock batteries, the 5000mah 3 cell 45c 11.1v Lipo can have more than triple of the run time per charge which allows you to run a full race TWICE without pull to the pit stop to change batteries. Comparing to the Ni-Mh’s or NiCd packs, these types of lipo has a much smaller physical size which will easily fit in your RC car and it is also lighter which makes it also a perfect choice for the crawlers that runs on the rocky or hash environments.

Gens Ace 5000mAh 2S 7.4V 60C Hardcase Lipo Battery

The new number one in performance and price! The Gens ace lipo 5000mah deliver the power and and run time needed for high performance models at a price anyone can afford. These hard case packs are 60C continuous with a burst rating up to 120C. Heavy duty 12AWG wire helps deliver this power while keeping resistance to a minimum. Each pack comes equipped with a bullet connector sized perfectly for the vehicle class and a XH style balance connector commonly found on all Gens Ace lipo batteries.

Gens Ace 3S 2200mah Lipo Battery Pack

This Gens Ace 25C 2S 2200mAh 7.4V LiPo Hard Case battery pack is meant to power your remote-controlled model so it achieves peak performance. With features like ultra low resistance 12 AWG soft silicone wire leads and our patented High Current Universal Plug System, you can depend on. Includes plug adaptors to fit Deans, Traxxas, Tamiya and EC3 plug types.

Gens Ace battery packs feature innovative construction and materials including: High impact resistant polymer outer case; Grade A Lithium Polymer Cells; Posi-Weld tabs for the highest durability and conductivity possible. Do not leave anything to chance with your batteries. Trust Gens Ace for long LiFe and consistent durability run after run.

Features

Battery Type: Lithium Polymer (LiPO)
Battery Capacity: 2200mAh
C Rate and Maximum Continuous Discharge (Amps): 25C (125A)
Plug Type: Venom UNI Plug. Compatible with Traxxas Plug, Tamiya Plug, Deans Plug & EC3 Plug.

Gens Ace batteries are lipo batteries which don’t have the memory effect so you can charge and recharge for over 1000 times. It can give your cars triple run time per charge and more power than any other lipo batteries of the same type. You can now run a full race TWICE without pulling to the pit stop to change batteries.