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Replacement for Lenovo ThinkPad E40 Laptop Battery

Lenovo ThinkPad E40 battery
  • Item Name: Replacement for Lenovo ThinkPad E40 battery
  • Availability: In Stock
  • Condition: Brand New
  • Warranty: One Year Warranty
  • Guarantee: 30 Days Money Back
  • Capacity: 4400mAh 7200mAh
  • Volt: 11.1V
  • Color: Black
  • Usually ships in the same business day.
  • Can't find your laptop battery? Please feel free to contact us.
  • 11.1V 4400mAh Black
  • 11.1V 7200mAh Black
Compatible part#
  • Lenovo 42T4235
  • Lenovo 42T4731
  • Lenovo 42T4733
  • Lenovo 42T4737
  • Lenovo 42T4753
  • Lenovo 42T4757
  • Lenovo 51J0499
  • Lenovo ASM 42T4703
  • Lenovo ASM 42T4752
  • Lenovo ASM 42T4756
  • Lenovo ASM 42T4796
  • Lenovo FRU 42T4702
  • Lenovo FRU 42T4751
  • Lenovo FRU 42T4755
  • Lenovo FRU 42T4791
  • Lenovo FRU 42T4793
  • Lenovo FRU 42T4795
  • Lenovo FRU 42T4797
  • Lenovo FRU 42T4817
  • Lenovo FRU 42T4819
  • Lenovo 42T4708
  • Lenovo 42T4709
  • Lenovo 42T4710
  • Lenovo 42T4712
  • Lenovo 42T4714
  • Lenovo 42T4715
  • Lenovo 42T4735
  • Lenovo 42T4799
  • Lenovo 42T4801
  • Lenovo 42T4803
  • Lenovo 51J0500
  • Lenovo 57Y4185
  • Lenovo 57Y4186
  • Lenovo ASM 42T4711
  • Lenovo ASM 42T4794
  • Lenovo FRU 42T4710
  • Lenovo FRU 42T4799
  • Lenovo FRU 42T4801
  • Lenovo FRU 42T4803
Fit models
  • Lenovo ThinkPad E40
  • Lenovo ThinkPad E50
  • Lenovo ThinkPad Edge 14 Inch
  • Lenovo ThinkPad Edge 14 Inch 05787UJ
  • Lenovo ThinkPad Edge 14 Inch 05787VJ
  • Lenovo ThinkPad Edge 14 Inch 05787WJ
  • Lenovo ThinkPad Edge 14 Inch 05787XJ
  • Lenovo ThinkPad Edge 14 Inch 05787YJ
  • Lenovo ThinkPad Edge 15 Inch
  • Lenovo ThinkPad SL410 2842
  • Lenovo ThinkPad SL410 2874
  • Lenovo ThinkPad SL410 Series
  • Lenovo ThinkPad SL410k 2842
  • Lenovo ThinkPad SL510 2847
  • Lenovo ThinkPad SL510 2875
  • Lenovo ThinkPad SL510 Series
  • Lenovo ThinkPad T410
  • Lenovo ThinkPad T510
  • Lenovo ThinkPad T510i
  • Lenovo ThinkPad W510
  • Lenovo ThinkPad L410
  • Lenovo ThinkPad L412
  • Lenovo ThinkPad L420
  • Lenovo ThinkPad L421
  • Lenovo ThinkPad L510
  • Lenovo ThinkPad L512
  • Lenovo ThinkPad L520
Note: We don't list the all compatiable laptop models, click here to see more >>>.
Battery Tips: How to prolong your battery life
  1. Put your computer to sleep when not in use) - If you're taking a break, let your computer take one as well.
  2. Remove the Lenovo ThinkPad E40 laptop battery if the notebook will be stored (turned off and not plugged into AC power) for more than 2 weeks.
  3. Try to avoid using a PC Card adapter, as they can drain your battery quickly, and make sure that your USB devices are set to allow Windows to shut them off to save power—you can find the settings in device manager's Power Management property pane for the device.
  4. Make sure to discharge the Lenovo ThinkPad E40 battery sometimes, and if you spend most of your time plugged in at a desk, you would be better off running the battery down to half, and then simply removing the battery and storing it in a cool place.
  5. Use the right adapter - Ensure that the adapter you use to charge the laptop battery is an original one or one with the correct specifications. A mismatch in the wattage could cause an overload thus damaging the laptop and the battery.