3.7V 1000mAh Li-Ion
1UPF383450-830, 1UPF383450-TBF, K33A Media Player Battery
For Gigabeat MES30V, Gigabeat MES30VW, Gigabeat MES60V, Gigabeat MES60VK

3.7V 2200mAh Li-Ion
IA1A803B1, P11R06-01-S01 Media Player Battery
For Gigabea MEV60, Gigabeat MEV30

3.7V 1000mAh Li-Ion
MK11-2740 Media Player Battery
For Gigabeat MEGF10, Gigabeat MEGF20, Gigabeat MEGF40, Gigabeat MEGF60