Description
Product Overview
This ASUS B31N1424 48Wh battery is a genuine replacement part designed specifically for compatible ASUS laptop models. Manufactured to meet original specifications, it ensures reliable performance and safe operation.
Key Features
- 48Wh capacity for extended usage
- Lithium-ion technology
- Direct replacement for original battery
- One business day shipping
- 30-day money back guarantee
- One year warranty
- In stock, brand new product
- Free shipping
Compatibility Information
Part Number (P/N)
- B31N1424
- 0B200-01390000
- B31Bn91
Compatible Models
- ASUS K401
- ASUS K401L
- ASUS K401LB
- ASUS K401UB
- ASUS K401UQ
Note: This battery is compatible with additional part numbers and models beyond those listed. If you’re unsure about compatibility, please leave your laptop model or current battery part number in the order notes, and we’ll verify before shipping.
When to Consider Battery Replacement
| Symptom | Description |
|---|---|
| Short Battery Life | Laptop powers off within 1-2 hours of unplugged use |
| Battery Not Charging | Battery percentage doesn’t increase when connected to power |
| Swelling/Bulging | Visible physical deformation of battery compartment |
| System Warnings | OS displays “Consider replacing your battery” or similar alerts |
| Age Indicator | Battery is 2-3 years old with noticeable performance decline |
| Random Shutdowns | Laptop turns 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 Streaming | 2-3 hours |
| Gaming | 1-2 hours |
| Mixed Use | 2.5-3.5 hours |
| Standby/Sleep | 24+ hours |
Note: These estimates are for new batteries used with older hardware. Actual runtime may be shorter than when your laptop was new due to increased power demands from software updates and natural hardware aging.
Purchase Assurance
We guarantee same-day shipping on business days, 30-day returns, full one-year warranty coverage, and free shipping. All products are brand new and in stock.
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