Abstract: A system and method for charging batteries in a system wherein the output of the batteries is converted to alternating current utilizing inverters. The alternating current from the inverters is modified by transformers and variable speed drives to contain properties which enable the alternating current to be used in a power grid to operate conventional electrical appliances. At least two banks of batteries are employed in the system. A unique battery charging device is employed to maintain the two banks batteries in constant substantially full charge. The battery charging device switches between a charge mode for one bank of batteries and a rest mode for the other bank of batteries. The battery charging device constantly and rapidly switches the different banks of batteries between these two modes. A timer controls the amount of time that each mode is applied to each bank of batteries. A solar panel supplies electric power to the charging device to charge the batteries.

Abstract: A system and method for charging batteries in a system wherein the output of the batteries is converted to alternating current utilizing inverters. The alternating current from the inverters is modified by transformers and variable speed drives to contain properties which enable the alternating current to be used in a power grid to operate conventional electrical appliances. At least two banks of batteries are employed in the system. A unique battery charging device is employed to maintain the two banks batteries in constant substantially full charge. The battery charging device switches between a charge mode for one bank of batteries and a rest mode for the other bank of batteries. The battery charging device constantly and rapidly switches the different banks of batteries between these two modes. A timer controls the amount of time that each mode is applied to each bank of batteries. A solar panel supplies electric power to the charging device to charge the batteries.