What is the Storage LIFE if lipo batteries

[jsoto]

I'm not too familiar in the world of lion/lipo.....cells.

I've got like 50+ Milwaukee battery packs for my cordless tools, which I rotate and when not in use, I keep them around 2/3 charge

Something NEW to me, with having toddlers now and getting in RC stuff is LIPO batteries )3S Tenergy, etc. We charge them for use and when not, I connect them to our icharger and put them lipo in storage state. I know LIPO's can get dangerous. Is there some sort of guideline on when to -trash- said batteries ?

 

[john61ct]

Capacity test via CC load discharge.

At 70-75% SoH, IOW lost 25-30% capacity, recycle them.

Or major puffing, really any detectable deterioration, default to be safe rather than sorry

 

[john61ct]

Store as cool as possible, at about half SoC.

Check periodically and top up if self-discharging, don't let them get anywhere near say 3.1V