11.1V 87Wh 9-Cell Battery for Lenovo ThinkPad SL510 SL410 T410i T420i T510i T520i W510 W520 ThinkPad Edge E420 E520 E525 (P/N: FRU 42T4797 FRU 42T4799 FRU 42T4819 FRU 42T4803 FRU 42T4751 ASM 42T4752 ASM 42T4796 57Y4185 57Y4186 51J0499 51J0500)

Description

Specifications

11.1V 87Wh 9-Cell Battery for Lenovo ThinkPad SL510 SL410 T410i T420i T510i T520i W510 W520 ThinkPad Edge E420 E520 E525 (P/N: FRU 42T4797 FRU 42T4799 FRU 42T4819 FRU 42T4803 FRU 42T4751 ASM 42T4752 ASM 42T4796 57Y4185 57Y4186 51J0499 51J0500)
Voltage 11.1V,
Capacity 7800mAh/87Wh,
Number of Cells/type 9,
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 Lenovo laptop in direct sun, a hot car, or on soft surfaces that block the vents.
2. Avoid charging to 100% every time – many Lenovo laptops have a battery conservation mode in Lenovo Vantage 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.