Nevon Express supplies a wide range of high-quality Lithium-Ion, Lipo Batteries, Polymer Batteries which includes 3.7V Polymer 523450 Rechargeable 500mAH 0.5C Lithium Ion Cell Battery. This Lithium-Ion battery is mainly used for hobby projects and robotics applications. This battery has very light weight and small size compared to Ni-Cd, Ni-MH and Lead acid batteries. It has very long life without losing charging capacity. This battery has wide range of usage and applications in cellular phone, web phone, interphone, Bluetooth earphone. Portable office devices like Notebook, PDA, portable electrograph and portable printer.