Product Overview
The X240 replacement battery delivers 6.34Ah (72Wh) with 6 cells of capacity at 11.22V for Lenovo ThinkPad X240, X250, X260 and X270 plus the compatible T / W / L / K series listed below. It directly replaces FRU numbers 45N1136, 45N1738, 45N1134 and 45N1777 (45N1124-45N1128 family), with premium Li-ion cells made in China. This US-stock unit is 100% brand new and ships fast with a 1-year warranty.
Specifications
| Attribute | Details |
|---|---|
| Standard Model | 45N1738 / 45N1136 |
| Capacity | 6.34Ah (72Wh) — 6 Cells |
| Voltage | 11.22V |
| Battery Type | Li-ion |
| Cell | Made in China, high quality guarantee |
| Color | Black |
| Stock Location | US Stock |
| Condition | Replacement Battery (100% Brand New, 1-year warranty!) |
| Warranty | 1-Year Warranty |
Replace Part Numbers
- 45N1136
- 45N1738
- 45N1134
- 45N1777
- 45N1124
- 45N1125
- 45N1126
- 45N1127
- 45N1128
Compatible Models
- Lenovo ThinkPad X240
- Lenovo ThinkPad X250
- Lenovo ThinkPad X260
- Lenovo ThinkPad X270
- Lenovo ThinkPad T440
- Lenovo ThinkPad T440S
- Lenovo ThinkPad T450
- Lenovo ThinkPad T450S
- Lenovo ThinkPad T460
- Lenovo ThinkPad T460P
- Lenovo ThinkPad T550
- Lenovo ThinkPad T560
- Lenovo ThinkPad W550
- Lenovo ThinkPad W550S
- Lenovo ThinkPad L450
- Lenovo ThinkPad L460
- Lenovo ThinkPad P50S
- Lenovo ThinkPad K2450
- Lenovo ThinkPad K20-80
- Lenovo ThinkPad K21-80
Attention!!! Not for the X240S, x230S, P50, T450P, T460S, T470, T550S, T550F, T560S or T560P.
FAQ
Which ThinkPad models does this 72Wh X240 battery fit?
It fits Lenovo ThinkPad X240, X250, X260, X270, T440, T440S, T450, T450S, T460, T460P, T550, T560, W550, W550S, L450, L460, P50S, K2450, K20-80 and K21-80. Confirm one of the FRU codes (45N1136 / 45N1738 / 45N1134 / 45N1777) on your original battery before ordering.
Which models are NOT compatible with this battery?
Attention: this 72Wh 6-cell battery is not for the X240S, x230S, P50, T450P, T460S, T470, T550S, T550F, T560S or T560P. For a T470P or other unlisted model, verify your original battery FRU (45N1xxx series) first — an isolated-model battery must match exactly.
Is this battery US stock and ready to ship?
Yes — this listing is marked US Stock for local fast dispatch, and the battery is 100% brand new.
What warranty is included?
A 1-year warranty is included. The advanced Li-ion cells deliver stable voltage output and support hundreds of charge cycles with protection against overcharge, over-discharge, short-circuit and overheating.
Note:
This is not a complete list or inclusion of all compatible laptop models. You can open the back of your laptop to check the original battery model. If you have any compatibility questions, please contact us online.The casing is made of durable materials, the mainboard adopts advanced technology, and the battery core is produced with high-quality raw materials to ensure that it will not be damaged after long-term use.
Our products are equipped with multiple protection technologies such as overvoltage, overcurrent, and overcharge to effectively protect the safety of batteries and equipment.
Shipping Methods
| Shipping Methods | Ship To | Est. Delivery Time | Shipping Cost | Taxes & Fees |
|---|---|---|---|---|
| USPS / DHL | United States | 10-15 business days | Free | Free |
| Canada Post | Canada | 10-15 business days | Free | Free |
| Royal Mail / Yodel | United Kingdom | 15-20 business days | Free | Free |
| DHL | Germany | 15-20 business days | Free | Free |
| La Poste | France | 15-20 business days | Free | Free |
| Correios | Mexico/Spain/IT | 15-25 business days | Free | Free |
| Local Carriers | SE Asia / East Asia | 5-10 business days | Free | Free |
| Local Carriers | Rest of Europe | 20-25 business days | From $5.99 | Free |
| Local Carriers | UAE / Saudi Arabia / Israel | 16-20 business days | From $7.99 | Free |
📦 Shipping & Tracking Information
Looking for faster shipping? We offer local warehousing services. Please visit our "Local Delivery" page for items available for immediate dispatch.
1. How to Track Your Package:
Please choose the tracking link that corresponds to your destination:
- Europe & The Americas: 17track.net/en
- The Middle East: mena56.com
- Asia: 17exp.kingtrans.cn
Need Help?
If you cannot find your package on any of the above websites, please contact us immediately.
📧 Email: sales@batterymall.com / info@batterymall.com
📱 WeChat/WhatsApp: (+86) 198 6775 1872 / (+86) 191 2767 3310
🚚 Estimated Delivery Time
(1) Shipping from China:
- To Asia: 5-20 business days
- To North America: 10-15 business days
- To Europe/South America: 15-20 business days
(2) Shipping from Local Warehouses:
- From US Warehouse: 3-5 business days
- From European Warehouse: 2-10 business days
- From Russian Warehouse: 3-5 business days
Please note: Exact arrival times depend on the specific country and customs processing.
⚠️ Tax & Customs Information:
Global product prices include customs duties (some countries require a tax ID). Please refer to the settlement invoice for specific shipping costs. Special handling is required if your package is inspected.
Payment Methods
Paypal
Payments by PayPal, no PayPal account required. Paypal is safe and free for buyers.
PayPal account: Payment@batterymall.com
Account Name: ShenZhen KingSener Science and Technology Co., Ltd
Credit or debit card
VISA, MasterCard, the United States n Express,Maestro & Laser Card, APPLE Pay,etc.
PayPal never shares your financial information with us.
WeChat Pay
Currently only supports QR code payment. Please contact WeChat customer service and go to WeChat App to scan the QR code to complete the payment.
Google Pay
Pay with Google Pay, which is more convenient and faster.
Apple Pay
If you use an Apple device, you can use Apple Pay to pay, which is more convenient and faster.
Bank Transfer
Q&A
Quick FAQ:Laptop Battery Care & Troubleshooting
- How long does a KingSener battery last?2 to 3 years (approx. 500-800 charge cycles) under normal temperatures.
- Laptop says "Battery Not Detected". How to fix?1. Hard Reset: Unplug AC, remove battery, hold power button for 30 seconds.
2. Clean Contacts: Wipe metal connection pins.
3. Reset Drivers: Uninstall battery drivers in Device Manager, then restart.
4. Update BIOS: Ensure motherboard firmware is up to date. - Can I leave my laptop plugged in 24/7?Yes, the built-in TI chip prevents overcharging. Tip: To prevent long-term cell swelling, unplug and drain the battery to 40% twice a month.
- How do I store a laptop battery long-term?Store it at 50% charge in a cool, dry place. Never store at 0% or 100%. Cycle the battery every 3 months to maintain chemical activity.
-
Are KingSener batteries safe?Yes. All batteries feature built-in IC protection against short-circuits, over-voltage, and overheating. Fully CE, FCC, and RoHS certified.