
The Genuine RJ40G 15.2V 63Wh 3941mAh Battery is the ideal replacement or backup power solution for your Dell Latitude and Precision laptops. Engineered for reliability, this high-quality lithium-ion battery ensures stable performance and extended runtime, making it perfect for professionals and students who rely on their laptops daily.
Compatible Models:
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Dell Latitude 5420
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Dell Latitude 5520
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Dell Precision 3560
Compatible Part Numbers:
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RJ40G
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01K2CF
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075X16
Specifications:
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Voltage: 15.2V
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Capacity: 63Wh / 3941mAh
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Battery Type: 4-cell Li-ion
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Condition: Brand new, 100% genuine
With its robust design and high efficiency, the RJ40G battery provides the dependable power you need to keep your Dell laptop running smoothly. Whether you are replacing a worn-out battery or upgrading for longer unplugged use, this genuine battery guarantees both compatibility and safety.
4. FAQ
Q1: Is this battery original or aftermarket?
A1: This is a genuine OEM RJ40G battery, designed specifically for Dell laptops for maximum compatibility and performance.
Q2: How do I check compatibility with my laptop?
A2: You can confirm compatibility by checking your current battery’s part number (RJ40G, 01K2CF, or 075X16) or ensuring your laptop model is Dell Latitude 5420, 5520, or Precision 3560.
Q3: What is the average battery life per charge?
A3: Depending on usage and settings, the RJ40G battery typically lasts 4–6 hours on a full charge.
Q4: Does the battery come with a warranty?
A4: Yes, all our genuine Dell batteries come with a 12-month warranty against defects in materials and workmanship.
Q5: Can I replace this battery myself?
A5: Yes, the RJ40G battery is user-replaceable. Simply remove the bottom cover of your laptop, disconnect the old battery, and install the new one.
| Battery Capacity | 3941mAh/63.2Wh |
| Voltage | 15.2V |
| Model No | RJ40G 075X16 WY9DX |
| Warranty | 12 Months |
New lithium-ion batteries must be fully charged and fully discharged two to three times before being fully conditioned.
Please note that the full capacity and life of a new lithium-ion battery is only achieved after 2 to 3 full charge and discharge cycles.
After you have gone through 2 to 3 cycles, you never have to condition the battery again.
Shipping Policy: