LION ENERGY EFFICIENT LI-ION BATTERY CHARGER FROM MICROPOWER GROUP - Micropower
Tenergy TN471U 2-bay Universal Battery Charger for Li-ion/NiMH with LCD, Micro USB input - Walmart.com
Adafruit Universal USB / DC / Solar Lithium Ion/Polymer charger [bq24074] : ID 4755 : $14.95 : Adafruit Industries, Unique & fun DIY electronics and kits