Dr. Battery
Dr. Battery MPL08251P-29 6 Cell 10.8V 4400mAh laptop battery
Six-cell 10.8V 4400mAh lithium-ion replacement battery for HP ProBook 4330s, 4331s, 4430s, 4431s, 4435s, 4436s, 4440s, 4441s, 4446s, 4530s, 4535s, 4540s and 4545s models
- ColorBlack
- TypeBattery
- CompatibilityHP ProBook 4330s / 4331s / 4430s / 4431s / 4435s / 4436s / 4
- Battery Type6 Cell Lithium-Ion
- Battery Voltage10.8V
- Battery Capacity4400 mAh
- Reliable power for HP ProBook models
- 6-cell lithium-ion design delivers 4400 mAh capacity
- 8 V output matches original specifications
- Replaces multiple OEM part numbers including 633733 series
- Built-in smart chip provides overheat and short-circuit protection
Replacement battery for HP ProBook series
The Dr. Battery MPL08251P-29 is a new 6-cell lithium-ion unit rated at 10.8V and 4400 mAh. It replaces original HP part numbers such as 633733-151 and HSTNN-Q87C-4 across ProBook 4330s to 4545s models. Buyers who need a different voltage or a higher capacity pack will not be served by this item.
Thermals noise and power draw
The integrated smart control chip manages charging current to reduce heat during recharge and limits self-discharge when idle. Built-in safeguards cut power on short circuit, overheat or overload events to protect both the pack and the laptop. No active cooling is required and the battery operates silently.
Bundled protections and verification
The onboard protection circuit delivers short-circuit, overheat and overload guards that extend safe runtime. A one-year manufacturer warranty covers defects in materials and workmanship. Users must match their laptop model and original part number before purchase because no installation guide or tooling is included.
Highlights
- Reliable power for HP ProBook models
- 6-cell lithium-ion design delivers 4400 mAh capacity
- 8 V output matches original specifications
- Replaces multiple OEM part numbers including 633733 series
- Built-in smart chip provides overheat and short-circuit protection
Specifications
| Brand | Dr. Battery |
|---|---|
| Model | MPL08251P-29 |
| 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-29 battery in my ProBook 4430s, and which step is often missed?
Power off the laptop, disconnect the AC adapter, slide the release latch to remove the old pack, insert the new 6-cell unit until it clicks, then charge fully before first use; people often forget the initial full charge.
What upkeep will this 4400 mAh lithium-ion pack need over its life?
No scheduled servicing is required; calibrate by running a full discharge and recharge cycle every few months to keep the smart chip reporting accurately.
What limit appears first when the 10.8 V battery runs under sustained load?
The 48 Wh capacity determines runtime; once depleted the pack must be recharged before the laptop can continue operating on battery power.
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