theese do not look like they are protected batteries, you need protected ones otherwise if you have a short or other problem the batteries could catch fire or explode your pv.
sorry, i'm not familliar with the life-po batteries, i just saw vthat they don't have the protection circuts on them and evberyone on the forum says to only use ones that say they are protected.
I wouldn't cause they don't look like tey're protected. I used unprotected for awhile but quit after all the unprotected batteries exploding. Batteries weren't designed for that kind of load and you might get away with it for awhile but it only takes once.
Those batteries don't say protected on them because they don't need to. LiFePO4 uses a safe chemistry that will not explode if they short circuit. They are safe to use.
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