Description
Product Overview
Genuine ASUS C21N1808 38Wh B-1 replacement battery designed specifically for compatible ASUS Chromebook models. This high-quality battery ensures reliable performance and extended usage time.
Specifications
- Voltage: 7.7V
- Capacity: 38Wh
- Chemistry: Lithium-ion
- Part Number: C21N1808
- Condition: Brand new, factory fresh
Compatibility Information
Part Numbers (P/N)
- C21N1808
- C21PqCH
- 0B200-03130000
Compatible Models
- ASUS Chromebook C423NA
- ASUS MJ401TA
Note: Compatibility extends beyond listed models. If your specific model or battery part number isn’t shown, please leave it in the order notes during checkout for verification.
When to Consider Battery Replacement
| Situation | Description | Recommended Action |
|---|---|---|
| Short Runtime | Battery drains quickly under normal use (less than 2 hours) | Replace battery |
| Charging Issues | Battery won’t charge fully or charges very slowly | Replace battery |
| Swelling/Bulging | Battery case appears swollen or deformed | Immediate replacement required |
| Age | Battery is over 2-3 years old with reduced performance | Consider replacement |
| System Warnings | OS shows “Replace soon” or “Service battery” alerts | Replace battery |
| Random Shutdowns | Device turns off unexpectedly even with charge remaining | Replace battery |
Estimated Battery Life by Usage
| Usage Scenario | Estimated Runtime | Conditions |
|---|---|---|
| Web Browsing | 4-5 hours | Medium brightness, multiple tabs |
| Document Editing | 5-6 hours | Word processing, spreadsheets |
| Video Streaming | 3-4 hours | HD video, medium brightness |
| Light Gaming | 2-3 hours | Casual games, low settings |
| Standby/Idle | 8-10 hours | Sleep mode with occasional wake |
Note: Battery runtime estimates are conservative. New batteries in older devices may provide shorter runtime compared to original factory performance due to increased software demands and hardware aging.
Purchase Benefits
- Same day shipping on business days
- 30-day money back guarantee
- 1-year manufacturer warranty
- In stock, ready to ship
- Free shipping included
- 100% brand new product
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