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I read that a 0.02C - 0.01C charge should not destroy the battery. Its just impractical. That would be 1-2A for a 100Ah battery. I was thinking that if you have access to the BMS sensor lead, you could wrap it in thin plastic to keep it dry, and then invert and spray canned air onto it. This...

The vendor wrote back. "Thank you for your suggestion regarding the description of the low temperature cutoff. We will make changes to the product details on Amazon" The BMS will only protect against battery discharge under extremely low temperature.

I just purchased 2 Bate Lithium 100Ah USB boxes. Advertised on Amazon as enabled for Low Temperature Cutoff. Very nice packaging. They look Milspec. The metal box almost looks like an ammo box. It has 2 heavy duty handles. Much heavier than expected. They also installed a small Supnova...

I'd be very interested in hearing about said results. I just bought 2 Bate Lithium 100Ah packages to replace my 140Ah harbor freight custom AGM 'portable' box. I presently have one of the Bate boxes outside, at 31°F (according to my laser thermo gun). Its been there for 1 hr, and the...