DELL RFJMW Original Battery

The Dell RFJMW is a genuine high-capacity 6‑cell OEM battery, built for Latitude E6000 and E6300 family laptops. With roughly 65 Wh capacity and full safety compliance, it provides excellent runtime (5–8 hours). To ensure authenticity—especially when buying in Nairobi—confirm part numbers, inspect certifications, and verify warranty terms.

Key Specifications

• ​​​​​​​Chemistry: Li‑Ion (Lithium‑Ion) pack 
• Voltage: Nominal 11.1 V (some listings note 11.4 V tolerance) 
• Capacity: ~65 Wh (~5,200–5,700 mAh) across sources 
• Cell Count: 6‑cell pack
• Certifications: CE, FCC, RoHS, UL (international listings)

Performance & Runtime

Capacity Range:

~5,200 mAh (~65 Wh) from Dell/OEM sources

Some retailers advertise 5,700 mAh—likely slightly overrated but still high capacity

Expected Runtime: 5–8 hours under typical use, depending on workload and system settings

Usage & Calibration Tips

• First-time use: Fully discharge the battery, then charge to 100% twice to calibrate the system.
• Care: Avoid extreme temperatures, use genuine Dell BIOS updates, and track battery health via Dell Power Manager.
• Full runtime reporting: Dell BIOS and system diagnostics should recognize full 65 Wh capacity—if it does not, the battery may be counterfeit