Amazon.com: Synergy Digital Player Battery, Compatible with Archos 8300 Player, (Li-Pol, 3.7, 2500mAh) Ultra High Capacity, Replacement for Archos FT447770P, HB4G14L Battery : Electronics
Synergy Digital Cell Phone Battery, Compatible with Archos 55 Helium Ultra Cell Phone, (Li-Pol, 3.7V, 2500mAh) Ultra High Capacity, Replacement for Archos AC55HE, BSF06 Battery - Walmart.com