Description
Product Overview
This genuine Lenovo 00NY639 44Wh battery provides reliable power for your compatible ThinkPad devices. Manufactured to meet original specifications, it ensures optimal performance and safety.
Specifications
- Battery Part Number: 00NY639
- Capacity: 44Wh
- Chemistry: Lithium-ion
- Voltage: 10.8V
- Condition: Brand new, factory fresh
Compatibility Information
Battery Part Numbers (P/N)
- 45N1740
- 45N1741
- 45N1742
- 45N1743
- SB10K12721
- 00NY639
Compatible Models
- ThinkPad P50s (20FL/20FK)
- ThinkPad T550 (20CK/20CJ)
- ThinkPad T560 (20FH/20FJ)
- ThinkPad W550s (20E2/20E1)
When to Replace Your Battery
| Symptom | Description |
|---|---|
| Short Battery Life | Lasts less than 1-2 hours on full charge |
| Swelling/Bulging | Battery case appears expanded or distorted |
| Overheating | Gets unusually hot during use or charging |
| Charging Issues | Won’t hold charge or charges intermittently |
| System Warnings | Laptop shows “Replace Battery” or similar alerts |
| Random Shutdowns | Computer turns off unexpectedly even with charge |
| Age | Battery is 2-3 years old with reduced performance |
Purchase Assurance
- Ships within one business day
- 30-day money-back guarantee
- 1-year manufacturer warranty
- In stock, ready to ship
- Free shipping included
Need Help Finding the Right Battery?
We’ve listed the most common compatible part numbers and models above, but there are additional compatible devices. If you don’t see your specific model listed, please leave your laptop model number or current battery part number in the order notes during checkout. We’ll verify compatibility before shipping to ensure you receive the correct battery.
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