The HP L34209-1B1 is an internal lithium-polymer replacement battery for a compatible laptop. Check the exact part number against your notebook to identify the battery variant.
It is rated at 7.7 V and 53.2 Wh, with a listed capacity of 6562 mAh rated and 6900 mAh typical. Its four-cell construction describes the battery’s configuration.
Designed to serve as the laptop’s internal power source, this battery is intended for a compatible notebook.