The RI04 is a 14.8V, 2600mAh Li-ion battery designed for various HP ProBook and Envy laptop models. It's a 4-cell battery with a capacity of 2600mAh and is designed to provide power for laptops like the ProBook 450 G3, 455 G3, and 470 G3. Spare Part Numbers: RI04, RIO6XL, 805294-001, 811063-421, HSTNN-DB7B, HSTNN-PB6Q, 805047-851.