HP 500349-001 - Battery (Primary) - 6-cell lithium-ion (Li-Ion), 14.4VDC, 2.20Ah, 47Wh Part 500349-001 486296-001 Retail
HP 511746-001 - Battery (Primary) - 3-cell lithium-ion (Li-Ion), 28Wh Part 511746-001 492548-001 Retail