Description
Product Overview
This genuine Lenovo 42T5264 replacement battery delivers 57Wh of power for your ThinkPad laptop. It’s a brand new, factory-fresh battery that ships within one business day with free shipping.
Compatibility Information
Part Number (P/N) Compatibility
This battery replaces the following Lenovo part numbers:
- 41U3198
- 42T4552
- 42T4653
- 42T4654
- 42T4677
- 42T4678
- 42T4742
- 42T5230
- 42T5262
- 42T5263
- 42T5264
- 42T5265
- 45J7969
Model Compatibility
Compatible with these ThinkPad models:
- IBM ThinkPad R400
- IBM ThinkPad R61
- IBM ThinkPad R61i
- IBM ThinkPad T400
- Lenovo ThinkPad R400
- Lenovo ThinkPad R61
- Lenovo ThinkPad R61e
- Lenovo ThinkPad R61i
- Lenovo ThinkPad T400
- Lenovo ThinkPad T61
Note: This list represents common compatible models and part numbers. If your specific model or battery part number isn’t listed, please leave it in the order notes during checkout and we’ll verify compatibility.
Technical Specifications
- Capacity: 57Wh
- Part Number: 42T5264
- Chemistry: Lithium Ion
- Condition: Brand New
When to Consider Battery Replacement
| Situation | Description |
|---|---|
| Short Runtime | Battery lasts less than 1 hour under normal use |
| Swelling/Bulging | Battery case appears swollen or distorted |
| Charging Issues | Battery won’t charge fully or charges intermittently |
| System Warnings | Laptop shows “Replace Battery” or similar alerts |
| Overheating | Battery gets unusually hot during use or charging |
| Age | Battery is 2-3 years old with noticeable performance decline |
| Sudden Shutdowns | Laptop powers off unexpectedly even with charge remaining |
Estimated Battery Life by Usage
| Usage Scenario | Estimated Runtime |
|---|---|
| Web Browsing & Email | 3-4 hours |
| Document Editing | 3.5-4.5 hours |
| Video Playback | 2.5-3.5 hours |
| Gaming | 1.5-2.5 hours |
| Standby/Idle | 6-8 hours |
| Mixed Use | 3-4 hours |
Note: These are conservative estimates for a new battery in older hardware. Actual runtime may be shorter than when your device was new due to increased software demands and natural hardware aging.
Purchase Protection
- 30-Day Money Back Guarantee
- 1-Year Manufacturer Warranty
- In Stock – Ships in 1 Business Day
- Free Shipping
- Brand New Product
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