Dell RJ40G High-Quality Replacement Notebook Battery (15.2V / 63Wh)
The Dell RJ40G replacement notebook battery provides a highly dependable, premium power storage solution to ensure seamless performance for your demanding business laptops. Moreover, its extended 63Wh capacity and stable 15.2V internal matrix layout deliver consistent voltage delivery to keep your device running smoothly during complex multitasking, professional work, or daily studying. Consequently, this 4-cell high-density lithium-ion rechargeable pack serves as an affordable, cost-effective alternative to optimize your laptop total off-grid runtime. Therefore, you can safely continue your remote operations immediately after a precise system integration without experiencing unexpected hardware power drops. Furthermore, internal protective circuits are actively integrated to shield your systems against hazardous overcharging and short-circuit faults during intensive workload hours.
■ Technical Specifications
| Battery Model Designation | Dell RJ40G Replacement Battery |
| Cell Architecture | Lithium-ion (Li-ion) | 4-Cells Layout |
| Voltage Profile | 15.2 Volts DC |
| Total Capacity Volume | 63 Wh (~4145 mAh) |
| Color & Finish | Matte Black Internal Enclosure |
| Replacement Warranty | 3-Month Quality Guarantee Protection |
■ Confirmed Laptop Compatibility List
- • Dell Latitude 5420 Series
- • Dell Latitude 5520 Series
- • Dell Latitude 5430 Series
- • Dell Latitude 5530 Series
- • Dell Precision 3470 Mobile Workstation
- • Compatible Part Numbers: RJ40G / 001PXH
Important Care Tip: To safeguard your brand new internal replacement battery lifecycle, remember to avoid letting the system power level drain completely to a 0% limit before initiating a safe charge cycle.




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