Archive for the ‘2W Solar Charger’ Category


2W Solar Charger

May 28, 2012

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.