Saturday, December 16, 2017
Home > Lipo Battery > LiPo Battery Capacity Test

LiPo Battery Capacity Test

Gens ace 5000mAh 7.4V 50C 2S1P HardCase Lipo Battery Pack 10#

When you have bought a lipo battery, you can see the battery data on your battery; such as a 5000mAh 3s 25c lipo battery, it tell me the battery’s capacity is 5000mAh, voltage is 11.1V, discharge is 25C.(if you don’t know What are these battery data mean, you can read this article: The analysis of lipo battery parameters) But in fact, are these battery data is true? In order to prove these battery data true or false, I have a battery capacity test.

Since my UP100AC charger lets me discharge & balance charge and see the total measured capacity (both from a charge or a discharge) 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, obviously if you have the same type of info feel free to add to this thread!

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.

And I have prepared 9 batteries from 5 brands battery, they are Gen Ace, Venom, Traxxas, Rage RC and Glacier. And next I will introduce these battery brands and their battery;

Gens Ace

Gens Ace is the brother of Tatty battery, their company whole name is Gens Ace & Tattu, and there are two brands under Gens ace & Tattu company. Gens Ace batteries are used for RC cars, UAVs, drones, helicopter, quadcopters and some others, their battery are high quality and professional, most RC lovers are like to use Gens Ace lipo battery. Today I will test 3 Gens ace batteries, they are Gens Ace 5000mAh 2s 50C , Gens Ace 5000mAh 4s 50C, Gens Ace (soft) 5000mAh 6s 45C.

Gens Ace 5000mAh 7.4V 50C 2S lipo battery:

Gens ace 5000mAh 7.4V 50C 2S1P HardCase Lipo Battery Pack 10#

Minimum Capacity: 5000mAh

Configuration: 2S1P / 7.4V / 2Cells

Discharge Rate: 50C

Max Burst discharge Rate: 100C

Price: 32$

Gens Ace 5000mAh14.8V 50C 4s lipo battery:

Gens ace 5000mAh 14.8V 50C 4S1P HardCase 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:

Gens ace 5000mAh 22.2V 45C 3S1P Lipo battery

Minimum Capacity: 5000mAh

Voltage: 6S1P / 22.2V / 6Cells

Discharge Rate: 50C

Max Burst discharge Rate: 90C

Price: 92$

Rage RC

This battery brand I have not heard, I don’t know who produced them but only know where to buy it, I borrow it from my friends. If you know more about this battery, please leave a comment to me.

Rage RC 5200mAh 2s 30C lipo battery:

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

Venompower is sold rechargeable batteries and related battery charging technologies used to power radio controlled drones, UAVs and models of all sizes. It is the same to Gens Ace, and Venompower sold chargers.

Venom 5000mAH 7.4V 25C 2S lipo battery:

.

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:

Venom 10000mAH 7.4V 35C 2s lipo battery

Voltage: 2s/ 7.4V/ 2cells

Discharge rate: 35C

Max Burst discharge Rate: 50C

Price: 90$

Traxxas

Traxxas is produce and sale trucks, and they seals Rc batteries, too. Traxxas Power Cell Battery Packs are optimized for free-flowing power and maximum punch with premium quality, low-resistance cells; flexible, silicone-jacketed 12-gauge wire; heavy-duty welded tabs; and patented Traxxas’ high-output, gold plated, High-Current Connectors.

Traxxas 5000mAh 11.1V 25C 3S lipo battery

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

This battery sold on buddyrc online shop, it is a rc lipo battery.

Glacier 5000mAH 14.8V 55C 4s lipo battery

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 text each one battery, this is an example of the final cycle on charging the Gens Ace 6S:

lipo-battery-capacity-test
lipo-battery-capacity-test

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 6S 45C New 5000mAh 5617mAh

From this table we can saw that Gens Ace and Glacier battery measured capacity are larger than their rated capacity, but the others brand batteries are smaller than rated capacity, and complete their price, 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. Trying to save money on batteries is something I wouldn’t recommend…

3 thoughts on “LiPo Battery Capacity Test

Leave a Reply