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Questions on LiPo maintenance/practice for an electric returnee


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3.0V is complete dead flat, 4.2V is full, but for any kind of reasonable lifespan you probably want to derate the lower end quite a bit, 3.7V nominal would put the conservative 0% mark at 3.2V.

Note low voltage cutoff is normally at 3.0V (soft) and a bit lower (complete) on our ESCs.

Derating the high end is easy enough with most chargers, you can turn them down a bit from 4.2V (I set mine just a tickle lower at 4.16V).

If you only go down to about 35% each flight I think you just about double the charge cycles you can expect from the battery.

The chemistry used in our main flight packs, I believe, is LMO (although I am not a chemist, so the usual disclaimers apply):

https://batteryuniversity.com/index.php/learn/article/types_of_lithium_ion

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