XTAR XP1 Hummingbird - Intelligent USB Charger Dual-Chemistry Charger for NiMH AA/AAA and Lithium Ion 10440, 14500, 16340, 18350, 18500 USB Powered - includes Micro USB cable. Auto-selecting dual chemistry - charges NiMH (Nickel Metal Hydride) and Li-ION (Lithium Ion) Charges NiMH (Nickel Metal Hydride) AA & AAA cells - both LSD (Low Self Discharge) and traditional varieties. Charges Li-ION (Lithium Ion) 10440, 14500, 16340, 18350, 18500 (3.6/3.7v) cells Has 2 modes - .25 amp and .50 amp - and can optionally refresh (recondition) NiMH batteries before charging. Super compact size and low weight! 1 year warranty when purchased from an authorized XTAR dealer!