Q:I’m clueless! thus: good for a 12v electric trolling motor (65lb thrust, 120ah rating)?

A:When you receive these cells, connect them in parallel and do a top balance, by charging them to 3.65 volts. Remove the charger, and leave them 24hr connected in parallel. then connect them in series to reach 12v and use. You MUST use an e-balancer or BMS.