The HP TT03056XL-PL is a three-cell lithium-ion battery assembly that powers a compatible laptop when it is away from external power. The exact manufacturer part number identifies this specific variant.
It has an energy capacity of 56 Wh and a charge capacity of 4.85 Ah. Its three-cell construction and lithium-ion chemistry distinguish it from batteries with other cell counts or capacities.
The associated HP service part number is 933322-852.