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Black rectangular 6-cell lithium-ion laptop battery

Dr. Battery

Dr. Battery MPL08251P-28 6-cell 10.8V 4400mAh laptop battery

SKU CH-2979-2VVBV

Six-cell lithium-ion replacement for many HP ProBook models, 10.8V 4400mAh capacity with built-in protection circuits

  • Battery type6 Cell Lithium-Ion
  • Battery voltage rating10.8 V
  • Battery capacity4,400 mAh
  • Product colorBlack
  • Product typeBattery
  • Compatible withHP ProBook 4330s / 4331s / 4430s / 4431s / 4435s / 4436s / 4
  • Delivers 48 Wh of runtime from a 4400 mAh lithium-ion pack
  • Six cells at 10.8 V match the original HP ProBook specifications
  • Replaces HP part numbers including 633733-151, 633733-241 and 633805 series
  • Smart control chip enables short-circuit, overheat and overload protection
  • Compatible with HP ProBook 4330s, 4430s, 4530s and related models

Replacement battery for HP ProBook series

This 6-cell lithium-ion unit replaces original HP batteries for ProBook 4330s, 4331s, 4430s, 4431s, 4435s, 4436s, 4440s, 4441s, 4446s, 4530s, 4535s, 4540s and 4545s models. It delivers 10.8V and 4400mAh capacity for mobile professionals needing reliable power away from a desk.

Verify your original part number before ordering

Match the battery against HP part numbers 633733-151, 633733-1A1, 633733-241, 633733-251, 633733-321 or 633805-0. Confirm the laptop model and output voltage printed on your existing pack to avoid fitment issues.

Built-in smart chip manages charging and safety

The integrated control circuit provides quicker charging, lower power consumption and longer discharge time. Short-circuit, overheat and overload protections are included. A one-year manufacturer warranty covers the unit.

How it compares

Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.

Price $36.99
Pricier than about 66% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameDr. Battery
Model nameMPL08251P-28
Product colorBlack
Product typeBattery
Power
Battery type6 Cell Lithium-Ion
Battery voltage rating10.8 V
Battery capacity4,400 mAh
Compatibility
Compatible withHP ProBook 4330s / 4331s / 4430s / 4431s / 4435s / 4436s / 4440s / 4441s / 4446s / 4530s / 4535s / 4540s / 4545s
Original Battery Part Number :
633733-151 / 633733-1A1 / 633733-241 / 633733-251 / 633733-321 / 633805-001 / 633809-001 / 650938-001 / HSTNN-1B2R / HSTNN-DB2R / HSTNN-DB2T / HSTNN-DB3C / HSTNN-I02C / HSTNN-I97C-3 / HSTNN-I97C-4 / HSTNN-I98C-5 / HSTNN-I99C / HSTNN-I99C-3 / HSTNN-I99C-4 / HSTNN-IB2R / HSTNN-LB2R / HSTNN-OB2R / HSTNN-OB2T / HSTNN-Q87C-4 / HSTNN-Q87C-5 / HSTNN-Q88C / HSTNN-Q88C-4 / HSTNN-Q88C-5 / HSTNN-Q89C / HSTNN-XB2E / HSTNN-XB2F / HSTNN-XB2G / HSTNN-XB2H /

Questions about this item

Does the Dr. Battery MPL08251P-28 come with installation tools or do I need to buy them separately?

The package contains the 6-cell 10.8V 4400mAh lithium-ion battery only; no tools or screws are included, so you will need a suitable screwdriver for the ProBook battery bay.

My ProBook 4530s original battery is part number 633733-251 — is this the correct replacement?

Yes, the MPL08251P-28 replaces HP part numbers including 633733-151, 633733-251, 633733-321 and the HSTNN-I99C series used in the 4530s and related models.

What does the 48Wh rating mean for daily runtime on a ProBook 4440s?

The 48Wh capacity matches the original 6-cell specification, delivering comparable run time to the factory battery under the same workload and power settings.

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