Description
Product Overview
This genuine Lenovo 45N1702 45Wh battery provides reliable power for your compatible ThinkPad laptop. Manufactured to meet original equipment specifications, it ensures optimal performance and safety.
Specifications
- Battery Part Number: 45N1702
- Capacity: 45Wh
- Condition: Brand new, factory fresh
- Chemistry: Lithium-ion
Compatible Part Numbers (P/N)
- 45N1701
- 45N1703
- 45N1702
Compatible Models
- ThinkPad X1 Carbon 2nd Gen (20A7, 20A8)
- ThinkPad X1 Carbon 3rd Gen
- ThinkPad X1 Carbon 2014
- ThinkPad X1 Carbon 2015
- ThinkPad X1 Carbon Touch (20BS, N3NA)
- ThinkPad X1 Carbon (20HQ)
- ThinkPad New X1 Carbon 20BT
- ThinkPad X1 20BS
- ThinkPad X1 20BT
- ThinkPad X1c X1 New Carbon 2015
When to Consider Battery Replacement
| Symptom | Description |
|---|---|
| Short Battery Life | Laptop powers off quickly when unplugged, lasting significantly less than original runtime |
| Swelling/Bulging | Battery case appears expanded or distorted, causing trackpad/keyboard lifting |
| Charging Issues | Battery won’t hold charge, charges intermittently, or doesn’t charge beyond certain percentage |
| System Warnings | Operating system displays “Consider replacing your battery” or similar alerts |
| Age | Battery is over 2-3 years old with noticeable performance degradation |
| Overheating | Battery becomes unusually hot during use or charging |
Compatibility Note
The compatibility list above is not exhaustive. If your specific model or battery part number isn’t listed, please leave your laptop model or current battery part number in the order notes during checkout. We will verify compatibility before shipping.
Shipping & Warranty
- Ships within one business day
- 30-day money-back guarantee
- 1-year manufacturer warranty
- In stock, ready to ship
- Free shipping
- 100% brand new product

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