ASSY-BATT 4C 56WH 3.75AH LI BM04056XL-PL

HP L02478-855 is a replacement internal battery assembly for the HP EliteBook x360 1030 G4, intended to power the notebook when it is away from an AC adapter. The service guide identifies this part number for that model, so it is a model-specific spare rather than a general-purpose external power bank.

The battery has 4 cells and a rated energy capacity of 56 Wh. The distributor identifies its chemistry as lithium-ion and lists a charge capacity of 7.30 Ah. These specifications describe the assembly associated with this exact part number.

Inside the notebook, a cable connects the battery to the system board, and screws secure it in place. The service guide includes its removal in the component replacement procedure, making the part relevant when servicing or replacing the internal battery in the identified EliteBook model.