WBM Smart Rechargeable Li-Ion Battery Set is powered-packed and ensures safety protection against over-charging, short circuit, over-current & over-discharge issues. Li-ion Battery Set has about 1000 cycles that can be recharged up to 1000 times without any release of harmful chemicals, ensuring its safety. With a charging time of 1.5 hours, 1.5V full CV discharge, 2400 MWh energy storage & a standby time of 6 months makes these rechargeable cells are unique and distinct from other cells in the market. Smart Rechargeable Li-ion Battery is best for home devices like toys, remote controls, clocks, joystick, toothbrush, shaver, torch & daily use devices. You do not need to frequently change the batteries or charge them as they have a long-lasting service time that can be easily used in homes, offices & during traveling. Charge these rechargeable lithium-ion battery set with a normal charger or a USB port.