GND 3.85V 4000mAh/15.4Wh Replacement Battery For ARCHOS 50 Power smartphone Built in Li ion bateria Li Polymer Batterie|Mobile Phone Batteries| - AliExpress
GND 4000mAh/15.4Wh CPLD 165 Replacement Battery For Archos 50 Power Built in Li ion bateria Li Polymer Batterie|Mobile Phone Batteries| - AliExpress
Amazon.com: Gomadic Portable AA Battery Pack Designed for The Archos 50 Helium Plus / 55 Helium Plus - Powered by 4 X AA Batteries to Provide Emergency Charge. Built Using TipExchange Technology :