HP 3-Cell Lithium-Ion Laptop Battery 48Wh (801517-421)

When your HP Pavilion or Envy laptop starts losing charge too quickly, this genuine HP 3-cell lithium-ion battery restores dependable runtime. It is the exact replacement for part number 801517-421, engineered to meet original specifications for safe, long-lasting performance. With a 48 Wh capacity and 14.8 V nominal voltage, it powers your system through work, study, or entertainment without frequent recharges.

Key specifications

• Battery type: Lithium-Ion (Li-ion)
• Number of cells: 3
• Capacity: 48 Wh (3240 mAh)
• Nominal voltage: 14.8 V
• Colour: Black
• Installation type: Internal
• Rechargeable: Yes
• Safety features: Overcharge, over-discharge, overcurrent, and short-circuit protection
• Compatible with: HP Pavilion 15-ab, Pavilion 17-g, Envy 15-ae, Envy 17-n series
• Alternative part numbers: HSTNN-LB6V, HSTNN-DB6T, HSTNN-UB6L, TPN-Q158, TPN-Q159, TPN-Q160, TPN-Q161, TPN-Q162

Why choose it

Using a genuine HP battery ensures optimal compatibility and safety. Built-in protection circuits guard against common electrical hazards, extending the battery's lifespan. The 48 Wh capacity provides a balance of weight and runtime, keeping your laptop portable while delivering hours of use. Installation is straightforward for most users, and the internal design keeps your laptop sleek.

Ideal use cases

• Replacing a worn-out or swollen battery in compatible HP laptops
• Keeping a spare battery for extended travel or remote work
• Restoring full mobility to a laptop that must stay plugged in
• Extending the life of an older HP Pavilion or Envy model

Good to know

This battery is brand new and meets original manufacturer specifications. It is not a third-party clone, so you can trust its performance and safety. For best results, calibrate the new battery by fully charging and discharging it once after installation. Always power off and unplug your laptop before replacing the battery. Check your laptop's model number against the compatibility list to ensure a proper fit.