Feature::Prevent overcharge, over discharge, short circuit Battery::543450 Polymer battery Charging time::2-3h Recharging current::1A Application::Bluetooth headset, mobile speaker, amplifier,GPS,etc. Set Type::Batteries Only Rechargeable::YES Recharging voltage::4.2V Nominal Capacity::1000mAh Type::Li-polymer Rated voltage::3.7V Size::Prismatic Feature1::Stable performance, small self-discharge, no pollution Type of battery::Lithium polymer battery