Dr. Battery
Dr. Battery MPL08217P-21 6-cell 10.8V 4400mAh laptop battery
6-cell lithium-ion replacement battery delivering 10.8V and 4400mAh for compatible HP Pavilion, Compaq Presario and HDX laptops
- ColorBlack
- TypeBattery
- CompatibilityCompaq Presario CQ40 / CQ41 / CQ45 / CQ50 / CQ50T / CQ50Z /
- Battery Type6 Cell Lithium-Ion
- Battery Voltage10.8V
- Battery Capacity4400 mAh
- Replaces HP Pavilion and Compaq Presario models listed
- 6-cell lithium-ion design delivers 4400 mAh capacity
- 8 V output matches original battery specification
- Built-in smart chip provides overheat and overload protection
- One-year warranty backs reliable performance
Replacement battery for HP and Compaq laptops
This 6-cell lithium-ion pack replaces original batteries in HP Pavilion DV4, DV5, DV6 and G-series notebooks as well as Compaq Presario CQ40, CQ50, CQ60 and CQ70 models. It delivers 10.8V and 4400mAh capacity to restore mobile runtime. The pack is new and includes a smart control chip for charge management.
Suits owners of listed HP
Buyers whose laptop requires a different voltage, a higher cell count or a different physical footprint should look elsewhere. The battery does not fit ultrabooks, modern USB-C charging laptops or any system outside the compatibility list.
10.8V 4400mAh 6-cell lithium-ion specification
This voltage and capacity combination determines whether the pack matches the original equipment specification. Verify the original battery part number and output voltage before ordering to ensure correct fit and function.
Highlights
- Replaces HP Pavilion and Compaq Presario models listed
- 6-cell lithium-ion design delivers 4400 mAh capacity
- 8 V output matches original battery specification
- Built-in smart chip provides overheat and overload protection
- One-year warranty backs reliable performance
Specifications
| Brand | Dr. Battery |
|---|---|
| Model | MPL08217P-21 |
| Color | Black |
| Type | Battery |
| Compatibility | Compaq Presario CQ40 / CQ41 / CQ45 / CQ50 / CQ50T / CQ50Z / CQ60 / CQ60Z / CQ61 / CQ70 / CQ71 HP G50 / G60 / G60t / G61 / G70 / G71 / G71t / HDX 16 / HDX 16T HP Pavilion DV4 / DV4T / DV5 / DV5T / DV5Z / DV6 / DV6T / DV6Z / G50 / G60 / G61 / G70 / G70T / HDX16 Original Battery Part Number : 462889-121 / 462890-251 / 462890-421 / 462890-542 / 462890-761 / 462890-851 / 482186-003 / 484170-001 / 484170-002 / 484171-001 / 484172-001 / 485041-001 / 485041-002 / 485041-003 / 497694-001 / 497695-001 / 498482-001 / 509458-001 / 511872-001 / 511883-001 / 511884-001 / 513775-001 / EV06 / HSTNN- |
| Battery Type | 6 Cell Lithium-Ion |
| Battery Voltage | 10.8V |
| Battery Capacity | 4400 mAh |
Questions about this item
How do I install the MPL08217P-21 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 10.8 V unit until it clicks, then reconnect power; the step often missed is leaving the AC adapter connected during the swap.
What maintenance will this 4400 mAh lithium-ion pack need later?
Run a full charge and discharge cycle every few months to keep the smart control chip calibrated; avoid storing the pack fully charged or fully depleted for long periods.
What limit appears first during sustained heavy use of this 10.8 V battery?
The 4400 mAh capacity determines runtime; under continuous high load the pack will reach its discharge limit and trigger the built-in overload protection before any other constraint.
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