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« on: November 08, 2019, 10:51:05 AM »
Bilal
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Hi guys,

So I came across a couple of these 32650 3.2V Rechargeable 6000mAh LifePO4 Battery Cell recently and am wondering is they can be used in a multirotor setup.

I've already been using NCR18650b cells for a while now in 3S2P and 4S2P  configurations with reasonable results. A 3S2P 6000mah li-ion pack is about 80grams lighter than a 3S 5200 mah phantom 2 battery and gives around 13-15 minutes of hover time with an AUW of 1300gms, which in my opinion is quite decent.

Am wondering if these cells would be feasible in such a use case or not, if anyone around here has any experience with these, please share your knowledge.

https://robu.in/product/32650-3-2v-rechargeable-6000mah-lifepo4-battery-cell/


32650-3.2V-Rechargeable-6000mAh-LifePO4-Battery-1.jpg
LiFePO4 32650 battery pack for multirotor
* 32650-3.2V-Rechargeable-6000mAh-LifePO4-Battery-1.jpg (26.97 KB, 800x800 - viewed 36 times.)
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« Reply #1 on: November 08, 2019, 11:19:13 AM »
Balakrishna Reddy
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Hey Abbas.
You checked it's capacity but you forgot to check it's weight.
I think 18650 battery you are using is approximately 3000mah at 48~50gm where as the lifePO4 battery you posted is double it's capacity and triple it's weight which I think is unsuitable for UAVs
I would suggest 21650 or 26650 li ion which have good density and also low cost.

Energy density of 21650 and 26650 are comparable with those of li ion.
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« Reply #2 on: November 08, 2019, 11:26:44 AM »
Bilal
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you pointed out the right thing Bala, I didn't consider weight, neither am I able to find the weight of these batteries anywhere.
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« Reply #3 on: November 08, 2019, 11:38:24 AM »
Bilal
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Energy density of 21650 and 26650 are comparable with those of li ion.

Any source for these batteries?
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