Dr. Battery MPL08271P-20 4-cell 14.8V 2200mAh laptop battery

Replacement Battery for HP Laptops

This 4-cell lithium-ion unit replaces original batteries in select HP ENVY and Pavilion notebooks. It delivers 14.8V and 2200mAh for 33Wh of capacity. The pack is built to OEM specifications with a smart control chip that manages charging and discharge cycles. It suits owners of compatible models who need a direct swap for a worn or failed original.

Lithium-Ion Chemistry Limits

The 4-cell design fixes the voltage at 14.8V and the energy at 33Wh, so runtime scales directly with the laptop's power draw. Lithium-ion cells lose capacity gradually over hundreds of charge cycles and degrade faster when stored fully charged or in high heat. The integrated protection circuit guards against short circuit, overheat and overload but cannot prevent normal chemical ageing. Users who need longer unplugged time must accept the physical limit of four cells.

Upgrading from Depleted Originals

This battery replaces an OEM pack that no longer holds a useful charge or that shuts down under load. The jump is worth it when the original runtime has dropped below half of its new rating or when the laptop warns of a battery fault. It is not for buyers who want more capacity than the factory 4-cell layout provides, nor for models outside the listed ENVY and Pavilion series.