Wiring 42 12 volt 35 AHr Batteries in a 12 volt configuration
These batteries were gifted, what to do with them? Make my shed a source of power. I have a 3000w 12v inverter with 2 sets of inputs (2+ AND 2-) I have bus barred 3 sets of 14 parallel batteries. Question which is the best way to hook up these 3 sets of batteries to each other for both charging and for the inverter. The reason why there are 14 X 3 is that what fits on the shelf. I used aluminum bus bar. The inverter needs to be hooked up with 2 positives and 2 negatives. Do I tie all strings at both ends together both on the positive and negative sides, or do I tie 1 end of string to the opposite side of string then again to the opposite side of the string to the other string (kind of like series but not positive to negative) or tie the 3 strings together with just 1 positive on 1 side and 1 negative on the other side. The answer will determine which way I hook up my charging. Then which would be the best way to wire up the inverter which needs 2 positives and 2 negatives? I know this parallel configuration is bad for charging and troubleshooting but this is what I have. Thanks for you input.