HP 805291-001 - Battery pack (Primary) - 4-cell lithium-ion (Li-Ion), 3.0Ah, 40Wh (RO04040XL-CL) Retail
HP 805292-001 - Battery pack (Primary) - 4-cell lithium-ion (Li-Ion), 3.0Ah, 44Wh (RO04044-CL) Retail