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Rectangular black lithium-ion laptop battery with six cells

HP

HP 11.1V 5200mAh 6-Cell Lithium-Ion Laptop Battery for Compaq 320 321 325 326 420 421 425 620 621 625

SKU CH-QZMJ-8N5K8

11.1 V lithium-ion replacement battery with 5200 mAh capacity and six cells for Compaq 320, 321, 325, 326, 420, 421, 425, 620, 621 and 625 models

  • CompatibilityCompatible with Compaq 320 321 325 326 420 421 425 620 621 6
  • Battery TypeLithium-Ion
  • Reliable power for compatible Compaq models
  • 1V output matches original laptop specifications
  • 5200mAh capacity extends usage between charges
  • Six premium lithium-ion cells deliver consistent performance
  • CE and RoHS certified for safety compliance

Compatible HP Compaq Models

This 11.1V lithium-ion battery replaces the original pack in Compaq 320 321 325 326 420 421 425 620 621 625 laptops. It is built for owners who need a direct-fit replacement to restore mobile runtime. The six-cell design delivers 5200mAh capacity for extended unplugged use. Buyers whose laptop is not in the listed series cannot use this battery.

Thermals and Power Draw

Lithium-ion chemistry keeps self-discharge low and maintains stable voltage during typical workloads. The pack runs cool under normal office or media tasks because it has no moving parts. CE and RoHS certifications confirm compliance with safety and environmental standards. No active cooling or external power circuitry is required beyond the laptop's own charging system.

Build Integration

The battery slides into the existing bay without adapters or cable changes. Its form factor matches the factory unit so the chassis closes flush and all latches engage. One-year replacement coverage protects against material or workmanship defects. Users who need hot-swap capability or a higher-wattage pack for a different model line should look elsewhere.

Highlights

  • Reliable power for compatible Compaq models
  • 1V output matches original laptop specifications
  • 5200mAh capacity extends usage between charges
  • Six premium lithium-ion cells deliver consistent performance
  • CE and RoHS certified for safety compliance

Specifications

CompatibilityCompatible with Compaq 320 321 325 326 420 421 425 620 621 625
Battery TypeLithium-Ion

Questions about this item

How do I install the 11.1V 5200mAh 6-cell battery in my Compaq 320 series laptop and what step is often missed?

Power off the laptop, unplug the AC adapter, slide the release latch, remove the old pack, insert the new 6-cell unit until it clicks, then lock the latch before turning the system on.

What maintenance or replacement will the 11.1V 5200mAh lithium-ion pack need over its service life?

No routine maintenance is required; expect to replace the pack once its run-time drops below your needs, typically after several hundred full charge cycles.

What limit appears first when the 11.1V 5200mAh battery runs under sustained heavy load?

The 5200mAh capacity determines how long the laptop operates before the pack must be recharged.

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