US Patent 10897144 Recharging platform for electronic devices

An apparatus has connectors to receive batteries. A power multiplexer is connected to the connectors. A processor is connected to the power multiplexer to execute a battery charge protocol including the operations of selecting at least one battery for charging, where the at least one battery is in a fast charge state that allows for substantially linear charge performance. Direct current is applied to the battery until the fast charge state is terminated. The selecting and applying operations are repeated until the fast charge state is terminated in each of the batteries. Direct current is then directed to the batteries until a full charge state is reached for each of the batteries.