Category Archives: Electronic Speed Control

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.

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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.



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.

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 where has Local Service , Quality Assurance , Best Prices and Fastest Shipping. Free shipping over $49.99 in USA, Over $198 in Canada.


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 version is not for sell, You can apply to be a tattu team pilot to try it. Application email to, or get the selling version Racing line on 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 About toppilot lipo review,look at this video:


TIPS for your Drone Battery Care

TIPS for your Drone Battery Care

7.4v Lipo battery has now been with us for many years and have become an essential part of this hobby. They weigh 10%- 20% less than the typical NiCd/NiHm battery and they store nearly 350% more energy. However, they can aslo be fully charged in about an hour. All of this electric goodness does not come without a cost. If not handled and utilized properly, LiPo batteries can quickly become damaged or even catch on fire. So I am writing this in an attempt to explain how to best maintain your drone battery. And Of course, choosing a better battery for your drone is aslo essential in order to have maximum performance and life span. For me I’m now using Tattu for my drone, however it’s safer and more powerful than what I’ve used anyway.

Let’s start with the basics of the drone care. First of all , your storage environment should be clean and dry. Keep them out of contact with any random metal objects and at safe, non-extreme temperatures. Or what you need to do is to make sure they are properly encased and sealed when in your drone, preferably in a waterproof battery box, and then store it in a clean, dry place.

Your Drone battery must only be charged by specific chargers made to charge your drone battery.

As me personal,I am using Tattu 10000mah 6s 2 cell lipo batteries,You might use different brand,but the method is the same,Taking battery out of your drone before you charge your battery. OF course, make sure your battery does not put near any flammable products or liquids when you are charging it.

Use the specific charger to discharge your drone battery. It can helps to stop discharging at a safe minimum charge level. As in my case,PL8 works perfect for my Tattu battery,Tattu 10000mah 6s as the best battery in uav area,so charger should be good enough to match it.

The other thing what you need to avoid is not to overcharge your drone battery.Generally speaking, the less that batteries are pushed to their max (that goes for charge and discharge), the more cycles they will provide.
These are tips to look after your drone battery. Better battery safety and longer battery lifespans, which in turn gives you a healthier wallet!

The Connection about ESC and Lipo Battery

Electric RC planes, boats and cars use batteries and Electronic Speed Controls (ESC) to control the motor. The ESC has two sets of leads, one runs to the motor, the other set to the battery pack. While it can be advantageous to solder the motor to the ESC, the same is not true for the battery. LiPo battery packs are rechargeable and need to be removed from the RC vehicle before charging. Some LiPo packs come with a connector already installed, others with nothing but a pair of wires.

What is an ESC?

ESC stands for Electronic Speed Control. Either the flight controller or radio receiver sends signal to the ESC, and the ESC drives the brushless motor by providing the appropriate level of electrical power.

The ESC thinks it is connected to a LiPo battery because it was programmed that way. Low Voltage Cut off (LVC) reduces power to the motor when the voltage drops to a pre determined level (usually 3V per cell for LiPo) to prevent damage to the battery. If you are not using a LiPo you need to disable this functionality. In the manual for the ESC there is a programming procedure which can disable this.

A 3s gens ace 5000mah lipo is 12.6v fully charged, a fully charged 12v lead acid is higher then that, so the ESC probably thinks you connected a 4s lipo. The LVC for a 4s would be 3v x 4 = 12v. When your motor starts pulling amps the voltage drops. It will quickly drop below 12v with how many amps you are trying to pull. This will trigger the LVC which will drastically reduce power to the motor.

gens ace 2200mah

ESC refresh rates vary. For multi-rotors, given the balance of multiple motors critical to the craft’s ability to stay airborne, high refresh rates are more important than many other hobbies where ESCs are used.

The only other major factor to consider is an ESC’s maximum current rating, which must exceed the current draw to each motor. Generally, 30 A for medium/large quads and 10 to 12 A for a small quad is plenty.

Clearly, those are high current draws. But such is the nature of multi-rotors. A medium-sized hex can easily pull 40 A on a steep ascent. As a result, hefty batteries are a necessity for decent flight times.

The industry standard is lithium-ion polymer (LiPo) batteries. Relatively lightweight, compact, and offering high discharge rates, LiPos are well-suited for multi-rotors.

There are three to consider as you start perusing the cyber-aisles of LiPo batteries. The first is voltage. A single cell supplies a nominal voltage of 3.7 V (4.2 V at full charge). Each additional cell wired in series adds 3.7 V to the nominal voltage of that pack. Cell counts are denoted by the number of cells followed by “S”. A 2200mah 3s lipo battery LiPo, therefore, is a battery of four 3.7 V cells at a summation of 14.8 V.

LiPo packs also have C ratings that indicate the maximum rate at which a pack can be discharged, with C standing for capacity. A 20C pack can be discharged at a rate 20 times its capacity.

Capacity, therefore, is the third important factor. It’s measured in milliamp-hours (mAh). Let’s say our 20C pack has a capacity of 4000 mAh. Given what we know about C ratings, we can do the math and determine its maximum discharge at up to 80,000 mA, or 80 A. Similar to ESCs, you need a discharge rate that’s higher than the combined draw current of your motors.

How to Connect ESC to a LiPo Battery

Following the instruction to connect ESC to Your Lipo battery


  1. Use your volt meter to determine which lead is positive and which is negative from the battery. If you reverse polarity to the ESC it will either damage the ESC or simply not work.
  2. Look at the wires attached to the ESC, there should be a + and – screened onto the board to indicate the proper polarity. Brushless ESC’s will have three wires running to the motor and two wire to the battery, however, brushed ESC have two wires to each device. Be sure you are working with the battery wires.
  3. Select the type of connector you want to use, most hobbyist use Dean’s connectors. There is a male end (has prongs protruding) and a female end (has sockets that accept the prongs) connectors. It is common to place the female connector on the battery and the male on the ESC.

Strip about a quarter inch of insulation off each of the four wires. Place a 1-inch long piece of heat shrink tubing on each wire. Place the heat shrink as far from the bare end of wire as possible.

Solder the connectors to the wires. Make sure the prongs and sockets align properly to keep the polarity correct. Once the solder has cooled slide the heat shrink tubing over the solder. Use a match or lighter or even your soldering iron to shrink the tubing tight.