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Rectangular black laptop battery with label showing model PH06 and 58 Wh rating

PISKEKAT

PISKEKAT PH06 58 Wh laptop battery

SKU CH-9ES5-B7BF3

Replaces HP ProBook and Compaq batteries with a 58 Wh, 10.8 V unit rated for over 500 cycles

  • Battery TypeLaptop Batteries
  • Replaces HP part 593572-001 for direct compatibility
  • 58 Wh capacity delivers extended runtime
  • UL-tested cells ensure safe operation
  • Supports more than 500 recharge cycles
  • Fast charging reduces downtime

Compatible HP ProBook models

This PH06 laptop battery replaces part numbers 593572-001, HSTNN-DB1A, HSTNN-CB1A and PH09. It fits HP ProBook 620, 625, 4320, 4321s, 4320s, 4325s, 4420s, 4520s and 4525s as well as Compaq 320, 321, 326, 420, 425 and 621 models. Confirm your old battery is marked PH06 or PH09 before ordering.

Installation and common issues

The battery slots into the standard ProBook bay without tools. Ensure the laptop is powered off and disconnected from mains before swapping. Misalignment of the connector pins is the usual cause of a failed first boot; reseat firmly if the system does not recognise the pack.

Capacity and runtime limits

Rated at 10.8 V, 5200 mAh and 58 Wh, the pack is designed for more than 500 recharge cycles. It supports typical office workloads on the listed ProBook and Compaq chassis but will not extend runtime beyond the original factory specification for those models.

Highlights

  • Replaces HP part 593572-001 for direct compatibility
  • 58 Wh capacity delivers extended runtime
  • UL-tested cells ensure safe operation
  • Supports more than 500 recharge cycles
  • Fast charging reduces downtime

Specifications

Battery TypeLaptop Batteries

Questions about this item

How can I confirm the PH06 battery is charging correctly after installation?

The battery supports fast charging on compatible models such as the HP ProBook 620 and 4520s; the OS should show a rising charge percentage and report a 10.8 V, 5200 mAh, 58 Wh pack within a few minutes of connection.

What comes in the box and do I need any extra parts to fit the PH06 battery?

The package contains the PH06 replacement battery only; no tools, screws or adapters are included, so reuse the existing latch hardware from your ProBook 4320s, 4420s or Compaq 420.

My old battery is labelled 593572-001 — should I choose the PH06 or the PH09 version?

Both PH06 and PH09 part numbers are listed as direct replacements for 593572-001, HSTNN-DB1A and 593573-001, so either version will fit the same ProBook and Compaq models.

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