14.4V 4000mAh/57Wh 8-Cell Battery for IBM ThinkPad X40 X41 (P/N: FRU 92P0998 FRU 92P1049 FRU 92P1078 FRU 92P1149 FRU 92P1143 92P1080 92P1003)

Description

Specifications

14.4V 4000mAh/57Wh 8-Cell Battery for IBM ThinkPad X40 X41 (P/N: FRU 92P0998 FRU 92P1049 FRU 92P1078 FRU 92P1149 FRU 92P1143 92P1080 92P1003)
Voltage 14.4V,
Capacity 4000mAh/57Wh,
Number of Cells/type Li-Poly 8,
Colour Black,

Compatible Part Numbers

Compatible Devices

Tips to Extend Your Battery’s Lifespan

1. Keep it cool – heat is the biggest cause of battery wear, so avoid leaving your IBM ThinkPad in direct sun, a hot car, or on soft surfaces that block the vents.
2. Avoid charging to 100% every time – many modern laptops have a battery care or conservation mode in their power settings that limits charging to around 80%, which can roughly double 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.