When we bought lipo batteries for our drones, we can see that there are battery parameters on the battery pack, for example, if you need to buy a 2200mAh 3S 25C lipo battery, you can get the battery parameters from the wrapping paper; but how do you sure the parameters of battery are true ? Does the battery’s weight, capacity, voltage are true? So I do a battery capacity test to get the real capacity of the battery. I borrowed some different kinds of brand lipo batteries from my friends and test them.
About these test batteries, they are different brands and parameters, and then I will introduce them to you. These brand batteries are Gen Ace, Venom, Traxxas, Rage RC and Glacier.
Gens Ace
There are 3 Gens Ace Lipo battery:
Gens Ace 5000mAh 7.4V 50C 2S lipo battery:
Minimum Capacity: 5000mAh
Configuration: 2S1P/7.4V /2 Cells
Discharge Rate: 50C
Max Burst discharge Rate: 100C
Price: 32$
Gens Ace 5000mAh 14.8V 50C 4s lipo battery:
Minimum Capacity: 5000mAh
Configuration: 4S1P/14.8V /4Cells
Discharge Rate: 50C
Max Burst discharge Rate: 100C
Price: 63$
Gens Ace (soft) 5000mAh 22.2V 45C 6s lipo battery:
Minimum Capacity: 5000mAh
Voltage: 6S1P / 22.2V / 6Cells
Discharge Rate: 50C
Max Burst discharge Rate: 90C
Price: 92$
Rage RC
Rage RC 5200mAh 2s 30C lipo battery:
Minimum Capacity: 5200mAh
Voltage: 2s/ 7.4V/ 2cells
Discharge rate: 30C
Max Burst discharge Rate: Unknown
Price: 32$
Venom power
Venom 5000mAH 7.4V 25C 2S lipo battery:
Minimum Capacity: 5000mAh
Voltage: 2s/ 7.4V/ 2cells
Discharge rate: 25C
Max Burst discharge Rate: 40C
Price: 49$
Venom 10000mAH 7.4V 35C 2s lipo battery:
Minimum Capacity: 10000mAh
Voltage: 2s/ 7.4V/ 2cells
Discharge rate: 35C
Max Burst discharge Rate: 50C
Price: 90$
Traxxas
Traxxas 5000mAh 11.1V 25C 3S lipo battery:
Minimum Capacity: 5000mAh
Voltage: 3s/ 11.1V/ 3cells
Discharge rate: 25C
Max Burst discharge Rate: 50C
Price: 75$
Glacier
Glacier 5000mAH 14.8V 55C 4s lipo battery:
Minimum Capacity: 5000mAh
Voltage: 4s/ 14.8V/ 4cells
Discharge rate: 55C
Max Burst discharge Rate: Unknown
Price: 86$
And I have tested each one battery, this is an example of the final cycle on charging the Gens Ace 5000mAh 22.2V 50C 6S lipo battery:
I've kept notes on actual measured capacity vs. rated capacity. I just thought I would share them here. As I come across (or borrow from friends/family) more batteries I'll update this post. New packs were cycled 3 times before obtaining results, all charges were done to 4.20v TVC using a C/2 charge (2.5A on a 5000mAh pack for example). Keep in mind the amount of time a pack was on a shelf (age), number of cycles on a used pack, and manufacturing tolerances - can all have an impact on the results so these should be taken with a grain of salt, as ymmv.
These are the result of the battery capacity and complete to their rate:
Battery Cells C-Rate New/Used Rated Measured
Rage RC 2S 30C New 5200mAh 4910mAh
Gens Ace 2S 50C New 5000mAh 5113mAh
Venom 2S 25C New 5000mAh 4992mAh
Venom 2S 35C New 10000mAh 9420mAh
Traxxas 3S 25C Used (15 cycles)5000mAh 4637mAh
Glacier 4S 55C New 5000mAh 5370mAh
Gens Ace 4S 50C New 5000mAh 5282mAh
Gens Ace(soft)6S 45C New 5000mAh 5617mAh
I hope to be able to test some SMC or SPC batteries in the future, but from these result, we can find Gens Ace and Glacier batteries are expensive, but their measured capacity are larger than rated capacity, and like the Venom, Traxxas and Rage RC are cheap, so their measured capacity are lower than rated capacity; and I have completed their price. So one thing I notice is that the more expensive brands (Glacier & Gens Ace) seem to under-rate the capacity so its a bit of a you get what you pay for situation. So I get a conclusion, not every battery are reliable, trying to save money on batteries is something I wouldn't recommend. And at last, I want to tell you: this is just my personal opinion, I only take the matter on its merits. many brands batteries measured capacity are not very true.
Log In to reply
Log In to reply
Log In to reply
Log In to reply