Amazon.com: Synergy Digital PDA Battery, Compatible with HP iPAQ h2100 PDA, (Li-ion, 3.7V, 2250mAh) Ultra High Capacity, Replacement for HP 35H00013-00 Battery : Office Products
233488-001 Compaq Pda Ipaq Battery for Ipaq H3800 Pocket Pc/ Ipaq H3850 Pocket Pc (Refurbished)