In the process of fixing then upgrading my 98 prado, have already added a second battery in the rear for my fridge and upcoming camp lights and maybe inverter to charge batteries (camera, drone) also debating adding a 2nd starter battery under the hood to give me extra breathing room for high power draw items getting added later, spot lights on the bull bar, light bar on the roof rack and a winch to name the big offenders, wondering if 3 batteries would need a stronger alternator to charge properly, or if I’m just thinking too much into it and 2 batteries will be fine