AA and AAA batteries are commonly used as power source with small footprint devices. Here at Vigyan Ashram, a charging device, sourcing itself from a 2W Solar Panel has been developed. One LM 317 voltage regulator, a 2W solar panel, a resistance of a few ohms and connecting wires form the material set. Rechargeable batteries need around 10% of its current capacity to recharge. More than 10% will recharge the battery faster. Hence, a AAA battery with 600mA capacity, needs 60mA current to get recharged.