Here are the typical technical specifications for a replacement laptop battery that is compatible with models like the hp pavilion dv4 / dv5 / dv6 series and hp compaq presario cq40, cq45, cq60 — including the most commonly used battery type (often sold as ev06 / ev03 compatible).
battery chemistry: lithium‐ion (li‐ion) rechargeable cells
cell configuration: 6‐cell battery pack
electrical specifications
capacity: typically 4,400 mah – 5,200 mah (≈ 48 wh – 58 wh) depending on manufacturer and model variant.
battery type lithium‐ion (li‐ion)
cell count 6 cells
voltage 10.8 v — 11.1 v
capacity ~4,400 mah–5,200 mah (48–58 wh)
color black
compatibility hp pavilion dv4/dv5/dv6 / compaq presario cq40/cq45/cq60
part numbers (common) ev06 / ev03, hstnn‐ib72, lb72, ub72,484XXXXXX