Dr. Battery
Dr. Battery MPL05222P-22 6-cell 11.1V 4400mAh laptop battery
A 6-cell lithium-ion replacement battery delivering 11.1V and 4400mAh for Dell Latitude and Precision laptops
- ColorGrey
- TypeBattery
- CompatibilityDell Latitude 6400 ATG / E6400 / E6400 XFR / E6400 ATG / E64
- Battery Type6 Cell Lithium-Ion
- Battery Voltage11.1V
- Battery Capacity4400 mAh
- 49 Wh capacity powers work sessions longer
- 6 lithium-ion cells deliver stable 11.1 V output
- Replaces Dell Precision M4400, M2400 and Latitude E-series packs
- Smart chip enables faster charging with overheat and short-circuit protection
- New condition, backed by a one-year manufacturer warranty
Replacement Battery for Dell Precision and Latitude
This Dr. Battery MPL05222P-22 is a new 6-cell lithium-ion unit rated at 11.1V and 4400 mAh. It replaces original Dell part numbers including 312-0748, 312-0749, 312-0753, 312-0754, 312-0910 and 312-0917. The pack is built for owners of Dell Precision M2400, M4400 and M4500 workstations as well as Latitude E6400, E6410, E6500, E6510 and E8400 models who need a direct-fit power source.
Fits Directly Into Existing Battery Bay
The battery matches the form factor and connector layout of the listed Dell originals, so it slots into the standard compartment without adapters or cable routing. An integrated smart control chip manages the charge cycle and communicates with the laptop’s firmware for accurate capacity reporting. This design frees the user from carrying an external power brick during typical mobile work sessions.
Built-In Protection Manages Heat and Draw
The onboard circuitry provides short-circuit, overheat and overload safeguards that keep cell temperatures stable under normal loads. Lower internal resistance from the grade-A cells reduces waste heat during both charge and discharge, helping the cooling fan stay quiet. Rated at 49 Wh, the pack delivers consistent voltage without triggering thermal throttling in the supported Precision and Latitude chassis.
Highlights
- 49 Wh capacity powers work sessions longer
- 6 lithium-ion cells deliver stable 11.1 V output
- Replaces Dell Precision M4400, M2400 and Latitude E-series packs
- Smart chip enables faster charging with overheat and short-circuit protection
- New condition, backed by a one-year manufacturer warranty
Specifications
| Brand | Dr. Battery |
|---|---|
| Model | MPL05222P-22 |
| Color | Grey |
| Type | Battery |
| Compatibility | Dell Latitude 6400 ATG / E6400 / E6400 XFR / E6400 ATG / E6410 / E6410 ATG / E6500 / E6510 / E8400 Dell Precision M 2400 N / M2400 / M4400 / M4500 / Workstation M2400 64 / WorkStations M2400 / WorkStations M4400 Original Battery Part Number : 1M215 / 312-0748 / 312-0749 / 312-0753 / 312-0754 / 312-0910 / 312-0917 / 312-7414 / 312-7415 / 451-10583 / 4M529 / 4N369 / 9H626 / C719R / DFNCH / FU268 / FU272 / FU274 / FU439 / NM631 / KY265 / PT434 / W1193 |
| Battery Type | 6 Cell Lithium-Ion |
| Battery Voltage | 11.1V |
| Battery Capacity | 4400 mAh |
Questions about this item
How long will the 4400 mAh capacity last before the battery needs recharging under heavy load?
The 6-cell lithium-ion pack stores 49 Wh at 11.1 V, giving roughly 4.4 Ah; actual run-time depends on the laptop's power draw and workload intensity.
Does the built-in smart control chip keep the battery cool and quiet during all-day operation?
The chip manages charging current, provides short-circuit, overheat and overload protection, and optimises discharge efficiency for stable thermal behaviour.
Which original Dell part numbers must match for this replacement to fit and work?
Compatible Dell part numbers include 312-0748, 312-0749, 312-0753, 312-0754, 312-0910, 312-0917, 312-7414 and 312-7415; verify against your original battery label.
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