Description
Specifications
11.1V 30Wh 3-Cell Li-Polymer Battery for Dell Latitude E7240 E7250 (P/N: WD52H KWFFN J31N7 451-BBFW 0J31N7)
Voltage 11.1V,
Capacity 27Wh,
Number of Cells/type 3 (Li-Poly),
Colour Black,
Compatible Part Numbers
- WD52H
- KWFFN
- J31N7
- 451-BBFW
- 0J31N7
- 0Y9HNT
- GVD76
- F3G33
Compatible Devices
- Latitude E7240
- Latitude E7250
Tips to Extend Your Battery’s Lifespan
1. Keep it cool – heat is the biggest cause of battery wear, so avoid leaving your Dell laptop in direct sun, a hot car, or on soft surfaces that block the vents.
2. Avoid charging to 100% every time – Dell Power Manager’s battery-extender/primarily-AC-use setting can cap charging around 50-80%, which can meaningfully extend your battery’s usable lifespan.
3. Don’t let it run flat – regularly draining the battery to 0% wears it out much faster than topping up before it gets critically low.
4. Store at around 50% charge – if you won’t be using the laptop for a few weeks or more, store it half-charged in a cool, dry place rather than fully charged or fully empty.
5. Go easy on fast charging – rapid chargers generate extra heat, so standard charging (especially overnight or while idle) is gentler on the battery over time.










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