Dr. Battery
Dr. Battery RJ40G laptop battery 3000 mAh 15.2V for Dell Latitude 5420 5520 Precision 3560
Replacement lithium-polymer battery rated 15.2 V, 3000 mAh for Dell Latitude 5420, 5520 and Precision 3560 series
- TypeBattery
- CompatibilityDell Latitude 14 5420 CHKFM / Dell Latitude 14 5420 FDTCY /
- Battery TypeLithium Polymer
- Battery Voltage15.2V
- Battery Capacity3000 mAh
- FunctionNotebook
- Restores reliable power for Dell Latitude 5420 and 5520 models
- Fits Dell Precision 3560 series laptops with exact part match
- 3000 mAh lithium-polymer cell at 15.2V delivers dependable runtime
- OEM-grade cells and built-in protection prevent over-charge and short-circuit
- Lightweight 0.4 kg design installs easily in 8.0×1.5×0.8 cm form factor
Replacement Battery for Dell Latitude and Precision
This Dr. Battery Professional Series unit replaces the original power source in Dell Latitude 14 5420, Latitude 15 5520 and Precision 15 3560 series laptops. It is built for professionals and everyday users who need dependable mobile power. The lithium polymer pack restores factory-level operation without modification.
Capacity and Runtime Headroom
The 3000 mAh cell at 15.2 V supplies the energy budget these models were designed around, supporting typical business workloads and web browsing sessions. Heavy sustained loads such as continuous video rendering or large compiles will deplete the charge faster than light office use. It does not extend runtime beyond the original specification.
Integrated Safety Protection
Built-in circuitry guards against over-charge, over-discharge, overheating and short-circuit events, protecting both the battery and the laptop. No extra software, drivers or calibration tools are bundled; the pack is recognised automatically by the system firmware. The feature set is limited to these electrical safeguards.
Highlights
- Restores reliable power for Dell Latitude 5420 and 5520 models
- Fits Dell Precision 3560 series laptops with exact part match
- 3000 mAh lithium-polymer cell at 15.2V delivers dependable runtime
- OEM-grade cells and built-in protection prevent over-charge and short-circuit
- Lightweight 0.4 kg design installs easily in 8.0×1.5×0.8 cm form factor
Specifications
| Brand | DELL |
|---|---|
| Model | Dell Latitude 5420 Series / Dell Latitude 5520 Series / Dell Precision 3560 Series |
| Part Number | DR-PRO-LDE383-A |
| Type | Battery |
| Compatibility | Dell Latitude 14 5420 CHKFM / Dell Latitude 14 5420 FDTCY / Dell Latitude 14 5420 Series / Dell Latitude 14 5420 XPC5H / Dell Latitude 15 5520 39V1H / Dell Latitude 15 5520 FPKNM / Dell Latitude 15 5520 Series / Dell Precision 15 3560 3H45Y / Dell Precision 15 3560 4MTF7 / Dell Precision 15 3560 758J7 / Dell Precision 15 3560 7RV10 / Dell Precision 15 3560 F3T9T / Dell Precision 15 3560 Series |
| Battery Type | Lithium Polymer |
| Battery Voltage | 15.2V |
| Battery Capacity | 3000 mAh |
| Function | Notebook |
| Dimension | 8.0x1.5x0.8 |
| Weight | 0.4 |
Questions about this item
Will the 15.2 V 3000 mAh RJ40G battery fit the original battery bay in my Dell Latitude 5420 without any modification?
Yes, the pack measures 8.0 x 1.5 x 0.8 cm and matches the Dell RJ40G form factor, so it slots directly into the Latitude 5420 bay with no adapter needed.
How can I verify the new battery is delivering the rated 15.2 V and 3000 mAh after installation?
Open the Dell BIOS or the Dell Power Manager utility; both report the current voltage and design capacity, letting you confirm the 15.2 V output and 3000 mAh rating are recognised.
Does the RJ40G pack ship with the Dell P137G / WY9DX screw kit or do I need to reuse my old screws?
The box contains only the battery itself; you reuse the existing screws from your Latitude or Precision chassis.
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