How Long To Charge A Boat Battery At 2 Amps. A marine battery that is capable of providing 100 amp hours would need approximately 50 hours to be restored to a full charge at the rate of 2 amps per hour. Automobile batteries commonly have a capacity of 48 amp hours.
Trickle chargers have a much lower amperage value. Will a Trickle Charger Be Sufficient. 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.
However this does not take into account the slower charging rate of deep cycle batteries.
Are you trying to figure out how long your boat battery will last with your equipment on a full charge. Most marine batteries are designed with two amps as their maximum value. Trickle chargers have a much lower amperage value. However this does not take into account the slower charging rate of deep cycle batteries.
