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So I recently bought the 48v “powerwall” from BigBattery. My MPP controller likely won’t be here for a month. It is now at 55% charge. Any recommendations on charging it in the meantime would be greatly appreciated. Thanks in advance for Your time.

On a whim I bought the big battery 48 v bank after watching Will’s video. They were sold out of 24 v so I went with the 48 v. Now somewhat stuck. I have no solar yet or all in one controller and the MPP 48 v will be $1000+. Need advice on connectors, cables, and lower cost controller inverters...