Doubtful. Li-Ion/Li-Poly/LiFePO4 Booster packs are designed to deliver a brief surge of current, as evidenced by the surprisingly small-gauge wires (12 ga seems to be typical) in the leads. They can get away with this for start attempts lasting a few seconds at a time since that's not long enough to heat up the wires. The pack itself might not be capable of sustained discharge either - the cells, internal bus wires, and the regulation circuitry might also fail under heavy sustained load - or simply cut out as a safety feature.I wonder if I might ask the advice of members about powerpacks?
I am looking to use one of these 58000mha car booster packs to run a small (max 42 amps per hour) electric outboard motor.
Being honest, I know very little about this subject so would like to ask if this is a good idea?
My rational behind this is that these units are cheap (<£40), light (500g), compact and will run for over an hour at peak drain.
Would this be a good idea?