I'm just wondering if anyone has replaced that aux battery with a Lithium battery with a built-in BMS? It looks like a U1 size might fit in there, but it would be tight.
Actually, I don't think it will work without a lot of modification. But I think I can fit a 20aH LiFePO in that same spot.
Actually, I don't think it will work without a lot of modification. But I think I can fit a 20aH LiFePO in that same spot.
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