NShi BN03XL laptop battery 11.55V 51Wh 4195mAh

Replacement battery for HP Envy X360 13

This 11.55 V lithium-polymer pack delivers 51 Wh and 4195 mAh for compatible HP Envy X360 13-AY, 13-BA, 13-BD and 15-ED, 15-EE, 15-EU, 15-ES models. It replaces original part numbers including BN03XL, L76965-271, HSTNN-DB9N and L73965-271. Buyers must verify the exact part number printed on their existing battery before ordering.

Lithium-polymer chemistry and fixed voltage

The cell chemistry provides stable 11.55 V output without memory effect, but capacity will gradually decline with charge cycles and age. Runtime depends on the laptop’s power draw, screen brightness and workload, so heavy use will reduce time between charges. The pack is certified to CE and FCC safety standards.

Direct swap for worn or failed original packs

This unit restores mobility when the factory battery no longer holds a useful charge or has swollen. It is not suitable for laptops outside the listed Envy X360 series or for users who need a higher-capacity alternative, as no larger-capacity version is offered. The jump is worth it when the original battery falls below acceptable runtime.