4pk Aa USB Rech Batt
USB AA Batteries recharge via any USB port. Perfect for TV remotes, flashlights, clocks, computer mice, or game controllers. Fully recharges in 5 hours. LED Indicators shows when the batteries are charged. Built-in Smart Charger prevents batteries from Overcharge. Full capacity is 1300 mAh. 1.2 volts. NiMH Nickel Metal Hydride.