[dtbaker]

I would like to know two things.... is there any way to definitively tell if a cell in a pack has been damaged compared to other cells in the pack to the point it is irrecoverable/unbalancable?

second, if and when I decide to replace the pack... do we have anywhere to ship 'dead' LiFePO4 cells for recycle and proper disposal?

 

[john61ct]

I use a 20-hour discharge rate from "Full" to test residual capacity.

Anything below 70% SoH - 80% if being more stringent - gets tossed.

I'd sell rejects on eBay, low start, honestly described, actual shipping cost no reserve.

Your town or county recycling center should also have hazmat disposal days, but some places that's only once a year.

 

[piotrsko]

Waste management has a program called lamptracker that will remove your cells. You get a cert that is federally accepted saying they were recycled. It is pricey. We use them at work.