TOPKTEAM OA04 41Wh 14.8V 4-cell laptop battery

Replacement Battery for HP 240, 245, 246, 250, 255.

This 41Wh lithium-ion battery replaces the original OA04 and OA03 packs used across HP 240 G2 and G3, 245 G2 and G3, 246 G3, 250 G2 and G3, 255 G2 and G3, 256 G2 and G3, and 248 G1 and G2 notebooks. It also fits Compaq Presario 15-h, 15-s and 15-g models listed under part numbers such as 740715-001, HSTNN-LB5S and HSTNN-LB5Y. The four-cell design delivers 14.8V to match the factory specification.

Upgrade from Depleted or Lower-Capacity Packs

Swapping in this 41Wh unit restores runtime when the original battery no longer holds a useful charge or when a lower-capacity three-cell pack was fitted at purchase. The jump is worth it for users who need a full workday away from mains power and whose chassis accepts the four-cell form factor. It does not serve machines that require a different voltage, connector layout or higher watt-hour rating.

Steady Output During Extended Sessions

Under sustained load the four lithium-ion cells maintain a stable 14.8V rail, supporting continuous operation through long document editing, web browsing or video playback sessions. The chemistry resists voltage sag better than aged packs, so the laptop avoids sudden throttling or shutdown when the charge level drops. Thermal behaviour stays within normal limits for the host platform’s cooling design.