Adafruit Universal USB / DC / Solar Lithium Ion/Polymer charger [bq24074] : ID 4755 : $14.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Amazon.com: 24V 15A LiFePO4 Battery Charger, RoyPow 24V Lithium LifePO4 Battery Charger 29.2V Lithium Battery Charger, 15A Smart Battery Maintainer, Designed for 24V LiFePO4 Deep Cycle Rechargeable Batteries : Automotive
CTEK Lithium US Smart Charger – Antigravity Batteries
12V 3 Bank 15A Lithium Ion Charger - DP-PS3 - Professional Series - Lithium Ion Battery Chargers | Lithium Ion Battery Accessories
USB LiIon/LiPoly charger [v1.2] : ID 259 : $12.50 : Adafruit Industries, Unique & fun DIY electronics and kits