Description
Specifications
Dell Inspiron 15z 5523 14z 5423 replacement battery (P/N: 2NJNF, 8JVDG, T41M0, TPMCF) 11.1V 38Wh
Voltage 11.1V,
Capacity 3400mAh/38Wh,
Number of Cells/type 3 (Li-Poly),
Colour Black,
Compatible Part Numbers
- 2NJNF
- 8JVDG
- T41M0
- TPMCF
Compatible Devices
- Inspiron 15z 5523
- Inspiron 14z 5423
- Inspiron 5523
- Inspiron 5423
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.
