Do Boat Batteries Recharge Themselves. On the surface the motors drew their power from diesel generators not unlike how a diesel locomotive operates today. The higher the drain on the battery the faster the products build up so batteries under high drain appear to recover more.
Using a 10-amp charger take 50 amp-hours and divide by 90 of 10 amps or 9 amps an approximate 56 hour recharge time. Charging batteries while driving is a key way to keep boat battery charged and help with a longer battery life during the day. Lets consider first a smaller boat one with a cranking battery and a single deep cycle battery like might be used with a 12V Minn Kota PowerDrive or Edge trolling motor.
There are two basic types of 12-volt batteries.
Get a well-ventilated space to charge the battery. AGM batteries can accept the highest charging current up to 40 of the amp-hour capacity of the battery compared to about 25 for the flooded type or 30 for the gelmeaning they recharge faster. Disconnect the leads from the battery and it should begin to charge as it normally would. The short answer to this question is no.
