HP 801554-001 is a replacement laptop battery, also identified as model CI03XL, for use in select compatible HP laptops. It supplies stored power when the computer is away from a direct power source.
Its lithium-ion design contains 3 cells. The stated capacities are 48 Wh and 4.21 Ah, useful identifiers when checking this battery against another HP variant.
The product details do not name specific compatible computer models, so check that the laptop supports battery model CI03XL before choosing it.