NinjaBatt HP 15-Series Laptop Battery LA03DF LA04

NinjaBatt 776622-001 is a high-performance 4-cell replacement Li-ion battery (32Wh, 2200mAh, 14.4V) designed to restore power to select HP 15-series and Pavilion laptops.

If your compatible HP laptop shows reduced runtime or won’t hold charge, this NinjaBatt replacement battery offers a direct-fit, safety-built alternative to the original pack. It uses grade-A cells and reinforced circuitry to match the original form, while providing a dependable rated capacity so you can work, stream, and travel with predictable battery life.

Which HP models and part numbers does this battery work with?

This NinjaBatt battery is made to replace several HP part numbers and to fit many HP 15-series and Pavilion 14/15 machines. Check your laptop’s service tag or the existing battery label to confirm compatibility before ordering.

• Compatible HP part numbers: 728460-001, 752237-001, 776622-001 and more.
• Works with LA04 / LA03DF style battery bays and TPN-Q125/Q130 family models.
• Fits dozens of Pavilion and ProBook 14/15 variants listed on the product page.

How long will the NinjaBatt battery power my laptop and how durable is it?

The battery is rated at 32Wh (2200mAh) and 14.4V, providing the same nominal capacity you’d expect from the original pack for everyday tasks. Constructed from grade-A Li-ion cells, it’s built for repeated charging and discharging cycles and includes protection circuitry to help extend service life.

• Rated capacity: 32Wh / 2200mAh at 14.4V for predictable runtime.
• Cells rated for up to about 500 full charge cycles under normal use.
• Includes built-in protection against overcharge, overcurrent, and short circuit.

Is the NinjaBatt replacement safe and backed by warranty?

Safety features and quality assembly are part of the design: the pack uses tested components and PCB protection to meet common safety expectations for laptop batteries. NinjaBatt also provides a 12-month warranty, giving you coverage against manufacturing defects for a full year from purchase.

• Assembled with high-quality materials and circuit boards for reliability.
• Grade A cells and built-in protection reduce risk of failure modes.
• 12-month warranty included—contact NinjaBatt for support on defects.

How do I install this battery and any tips for best performance?

Installation is straightforward for models with removable battery bays: power down, remove the old pack, and snap the new NinjaBatt battery into place. For sealed chassis or if you’re unsure, follow your laptop manufacturer’s service instructions or seek professional help to avoid damage.

• Power off and unplug your laptop before swapping batteries.
• Confirm connector alignment and secure the latch; avoid forcing the pack.
• Calibrate occasionally: fully charge then fully discharge once every few months.

Who is this for: The NinjaBatt 776622-001 is aimed at HP laptop owners who need a reliable, OEM-compatible replacement without paying original-brand premiums. It suits students, remote workers, IT technicians, and anyone maintaining older HP Pavilion or 15-series laptops that accept LA03DF/LA04 style batteries. If your device uses one of the listed part numbers or model IDs and shows reduced battery life or charging problems, this pack provides a tested replacement option with a 12-month warranty for added confidence.