As you know, batteries are for storing energy in various devices. Boats are no exception to this rule and have batteries with different voltages. The internal battery that connects to the mains and is used to charge trolley boats is one of the most common tasks. Therefore, if the boat battery has 12 volts, its charger must also be a 12-volt charger to be compatible with each other. This battery converts the chemical energy it has stored into electrical energy, and the battery must be recharged when the electrolyte runs out. So we can say that the battery charger is a device that transmits DC current to the battery to return the consumed electrolyte The Marine Land store in Dubai and Sharjah has the best for you .