HP 687945-001 is a primary, long-life notebook battery, identified by reference BT04052XL-PL. It supplies portable power to a compatible HP notebook and serves as a replacement within the relevant HP parts range.
Its four-cell lithium-ion design stores 52 Wh of energy and has a stated electric charge capacity of 3.55 Ah. These figures describe the battery’s energy storage for notebook use away from a mains connection.
Part number 687945-001 and reference BT04052XL-PL distinguish this variant from HP notebook batteries with different cell counts or capacities. It is intended for everyday mobile work, study and other general tasks on a compatible system.