The HP RI04044-CL is a four-cell laptop battery that supplies power when a laptop is away from an external power source.
It uses lithium-ion (Li-ion) cells. The model code and four-cell design identify it as a specific HP part, rather than a general-purpose battery.
This component is for portable-computer use while disconnected from mains power. Its confirmed specifications are Li-ion chemistry and four cells; no voltage, energy capacity or compatible laptop models are stated.