Description
Product Overview
This ASUS B31N1842 42Wh replacement battery is designed to restore your laptop’s original performance and mobility. Manufactured to meet or exceed OEM specifications.
Specifications
- Battery Type: Li-ion
- Voltage: 11.4V
- Capacity: 42Wh
- Condition: Brand new
- Part Number: B31N1842
Compatible Part Numbers (P/N)
- 0B200-03440000
- 0B200-03440100
- 0B200-03440200
- B31N1842
Compatible Models
- ASUS B31BmE1
- ASUS ExpertBook P1 P1511CEA
- ASUS VivoBook 15 K513EA
- ASUS VivoBook 15 S513EA
- ASUS VivoBook 15 S513IA
- ASUS VivoBook 15 X513EA
- ASUS VivoBook 15 X513EP
- ASUS VivoBook 15 X513EQ
- ASUS VivoBook 15 X513UA
- ASUS VivoBook 15 X515EP
- ASUS VivoBook S15 S531FA
- ASUS VivoBook S15 S531FL
- ASUS VivoBook S15 S533EP
- ASUS VivoBook S15 S533UA
- ASUS X513IA
Compatibility Note
This battery is compatible with many more ASUS models and part numbers beyond those listed. If you don’t see your specific model or part number here, please leave your laptop model or current battery part number in the order notes during checkout, and we’ll verify compatibility before shipping.
When to Replace Your Battery
| Situation | Description |
|---|---|
| Short Runtime | Battery drains significantly faster than original capacity, lasting less than 1-2 hours |
| Swelling/Bulging | Battery case appears swollen or distorted, creating gap between battery and laptop |
| Charging Issues | Battery won’t charge fully, charges intermittently, or doesn’t hold charge |
| System Warnings | Laptop displays “Consider replacing your battery” or similar system alerts |
| Age Factor | Battery is 2+ years old with noticeable performance degradation |
| Overheating | Battery becomes unusually hot during charging or normal use |
| Random Shutdowns | Laptop shuts down unexpectedly even when battery indicator shows charge remaining |
Estimated Battery Life by Usage
| Usage Scenario | Estimated Runtime |
|---|---|
| Web Browsing & Email | 3-4 hours |
| Document Editing | 4-5 hours |
| Video Streaming | 2.5-3.5 hours |
| Gaming | 1.5-2 hours |
| Mixed Use | 3-4 hours |
| Standby/Sleep | 24+ hours |
Note: These are conservative estimates for a new battery in older hardware. Actual runtime may be shorter than when your laptop was new due to increased software demands and natural hardware aging.
Purchase Benefits
- Ships within one business day
- 30-day money-back guarantee
- 1-year warranty
- In stock, ready to ship
- Brand new product
- Free shipping
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