Dr. Battery
Dr. Battery MPL08251P-18 6-cell 10.8V 4400mAh laptop battery
A 6-cell lithium-ion replacement battery delivering 10.8V and 4400mAh capacity for compatible HP ProBook models
- ColorBlack
- TypeBattery
- CompatibilityHP ProBook 4330s / 4331s / 4430s / 4431s / 4435s / 4436s / 4
- Battery Type6 Cell Lithium-Ion
- Battery Voltage10.8V
- Battery Capacity4400 mAh
- Fits HP ProBook 4330s 4331s 4430s 4431s 4435s 4436s 4440s 4441s 4446s 4530s 4535s 4540s 4545s
- Replaces original part numbers 633733-151 633733-241 633733-251 633733-321
- 6-cell lithium-ion chemistry delivers 4400mAh capacity
- 8V output matches OEM voltage specification
- Smart control chip enables short-circuit overheat and overload protections
Replacement Battery for HP ProBook Series
The Dr. Battery MPL08251P-18 is a new six-cell lithium-ion unit rated at 10.8V and 4400mAh. It replaces original HP part numbers such as 633733-151, 633733-241 and 633805 series. The pack fits ProBook 4330s, 4331s, 4430s, 4431s, 4435s, 4436s, 4440s, 4441s, 4446s, 4530s, 4535s, 4540s and 4545s models.
Built-in Smart Control Chip
An integrated control chip manages quicker charging, lower power consumption and longer discharge time. The circuitry also provides short-circuit, overheat and overload protections to maintain safe operation. No separate software or external accessories are bundled; the protection logic resides entirely inside the battery housing.
10.8 Volt Lithium-Ion Interface
The pack delivers a fixed 10.8V output with a 48Wh energy rating, matching the voltage window required by the listed ProBook models. It will not operate in laptops that expect a different nominal voltage or a proprietary communication protocol beyond the standard smart-battery data lines. Buyers must confirm their original battery shows 10.8V and a compatible part number before installation.
Highlights
- Fits HP ProBook 4330s 4331s 4430s 4431s 4435s 4436s 4440s 4441s 4446s 4530s 4535s 4540s 4545s
- Replaces original part numbers 633733-151 633733-241 633733-251 633733-321
- 6-cell lithium-ion chemistry delivers 4400mAh capacity
- 8V output matches OEM voltage specification
- Smart control chip enables short-circuit overheat and overload protections
Specifications
| Brand | Dr. Battery |
|---|---|
| Model | MPL08251P-18 |
| 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 long will the 6-cell lithium-ion pack last before I need to replace it?
The battery uses lithium-ion cells rated for typical cycle life; capacity will gradually decline after several hundred full charge cycles, at which point a replacement restores full runtime.
What limits runtime first when the laptop runs a sustained heavy workload?
The 4400 mAh capacity and 48 Wh energy rating set the total energy available; once depleted the pack must be recharged before the laptop can continue.
Does the battery get hot or draw extra power during all-day use?
The built-in smart control chip manages charging and discharge to limit heat buildup and power loss, while providing short-circuit, overheat and overload protections.
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