Dr. Battery
Dr. Battery MPL08251P-26 6-cell 10.8V 4400mAh laptop battery
Six-cell lithium-ion replacement for many HP ProBook models, 10.8 V and 4400 mAh capacity
- ColorBlack
- TypeBattery
- CompatibilityHP ProBook 4330s / 4331s / 4430s / 4431s / 4435s / 4436s / 4
- Battery Type6 Cell Lithium-Ion
- Battery Voltage10.8V
- Battery Capacity4400 mAh
- Compatible with many HP ProBook models
- 6-cell lithium-ion design delivers 4400 mAh capacity
- 8 V output matches original specifications
- Built-in smart chip enables overheat and short-circuit protection
- New replacement backed by a 1-year warranty
Replacement battery for HP ProBook series
This Dr. Battery MPL08251P-26 is a new six-cell lithium-ion pack rated at 10.8V and 4400mAh. It replaces original HP part numbers including 633733-241, 633733-251, 633733-321, 633805-001 and 650938-001. The unit fits ProBook 4330s, 4331s, 4430s, 4431s, 4435s, 4436s, 4440s, 4441s, 4446s, 4530s, 4535s, 4540s and 4545s models. Buyers who need a different voltage or connector layout cannot use this pack.
Thermals and power behaviour
The built-in smart control chip manages charging current to reduce heat during recharge and limits power draw while the laptop runs on battery. Integrated safeguards cut output if a short circuit, overheat or overload condition is detected, protecting both the pack and the notebook. Normal operation stays within the 48Wh design envelope without extra cooling requirements. Users who expect active fan cooling or liquid thermal management will not find it here.
Included protections and compatibility checks
The onboard circuitry delivers quicker charging, lower consumption and longer discharge time through its protection logic. A one-year manufacturer warranty covers defects in materials and workmanship. The supplier advises verifying the laptop model, original battery number and output voltage before purchase to avoid mismatches. No software utilities, installation tools or extra cables are bundled. Customers who want a capacity upgrade beyond 4400mAh must look elsewhere.
Highlights
- Compatible with many HP ProBook models
- 6-cell lithium-ion design delivers 4400 mAh capacity
- 8 V output matches original specifications
- Built-in smart chip enables overheat and short-circuit protection
- New replacement backed by a 1-year warranty
Specifications
| Brand | Dr. Battery |
|---|---|
| Model | MPL08251P-26 |
| Color | Black |
| Type | Battery |
| Compatibility | HP 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 / |
| Battery Type | 6 Cell Lithium-Ion |
| Battery Voltage | 10.8V |
| Battery Capacity | 4400 mAh |
Questions about this item
How do I install the MPL08251P-26 battery in my HP ProBook 4441s 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 10.8V unit until it clicks, then reconnect power and let it charge fully before first use.
What maintenance or replacement will the 4400 mAh lithium-ion pack need later?
The 6-cell lithium-ion pack has no user-serviceable parts; when runtime becomes too short for your work you replace the whole battery.
What limit appears first during sustained use of this 48 Wh battery?
The 4400 mAh capacity determines how long the ProBook runs before the pack must be recharged.
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