- Specifications
- Brand: Lenovo
- Type : Li-ion
- Voltage : 14.8V
- Capacity : 3100mAh/46Wh
- Compatible Part Numbers: 121500159 45N1138 45N1139 45N1140 45N1141
- Compatible Model Numbers: LENOVO S440 S431
Note: This battery has 2 different types of buckles (please refer our major picture) . Please leave us a message which type do you need when place order. Thank you!

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* Lenovo model Laptop Batteries
Lenovo Laptop Battery (Consider these popular products)
45N1139
Lenovo ThinkPad S440 S431
3100mAh/46Wh£ 55.09 £ 68.00L18C6P90
Lenovo ThinkPad P53 Series
8000mAh/90Wh, RAT. 7800mAh/87.5Wh£ 58.09 £ 72.00L18L3PD1
Lenovo ThinkPad T490s
4.922Ah / 57Wh£ 53.09 £ 66.00L19D3PD3
LENOVO xiaoxin pro13
4910mAh/56Wh£ 53.09 £ 66.00BSN0427488-01
Lenovo 100S-14IBR 8S5B10L 80R9
7600mAh /56.24Wh£ 47.09 £ 58.00L18M4PC0
LENOVO YOGA S940-14IWL
6755MAH/52WH£ 52.09 £ 65.00L17M2PF0
Lenovo 330 330G 15ARR
4400mAh/34WH£ 35.09 £ 43.00L17L3P54
Lenovo 11e SB10K97631 01AV487 SB10K9
42Wh/3685mAh£ 46.10 £ 57.001. Better Quality:
With the international Standard Control from R&D, Manufacturing and test, Our battery for Lenovo ThinkPad S440 S431 have passed CE, UL, ROHS, ISO9001,QS9000 and TS16949.
2. Competitive Price:
At least Save up to 30% from our site battery shopping. We can provide cheap and high quality Lenovo ThinkPad S440 S431 batteries to benefit our customers.
3. Timely Shipping:
We provide timely delivery to our customers. We will shipping the battery immediately after got your payment. It is usually take 7-15 business days for you get the replacement Lenovo ThinkPad S440 S431 battery.
4. Technical Support&Service:
We are committed to providing technical support and after sale services as follow:
(1)30 Days Money back of without receiving battery.
(2)1 year free quality warranty after you purchase.
(3)Fast shipping and tax to worldwide.
Description of Lenovo ThinkPad S440 S431 Laptop battery
All of our Lenovo ThinkPad S440 S431 Laptop batteries are made with high-quality original new Cells, they are designed to meet or exceed the OEM (original) specifications. Lenovo ThinkPad S440 S431 Laptop Batteries of Lenovo for Lenovo ThinkPad S440 S431 are brand new, 1 year Warranty, 30 days money back guarantee. We promise that the Lenovo ThinkPad S440 S431 Laptop Battery sold in our website are 100% brand new - We never sell used or refurbished Lenovo ThinkPad S440 S431 Laptop Battery 100% new high quality Replacement battery Compatible your advent laptops. Provides excellent discharge characteristics. Quick delivery for every order.
FAQs
Q: Does overcharging damage the battery for Lenovo ThinkPad S440 S431?
A: Overcharging can create excessive heat which bends the plate within the cells and shed active material then results in the capacity loss.
Q: How to find the right battery for my notebook?
A: First, find your battery part number/laptop model. Second, search the part number/laptop model. Third, verify the battery before you buy.
Q: What should I do if the Lenovo ThinkPad S440 S431 battery replacement gets hot in my laptop?
A: It is normal that the battery becomes warm. When it becomes too hot, take the battery out and let it cool down. If the problem persists once it is inserted back into the laptop, the battery could be defective and need to be replaced.
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