Description
Product Overview
This ASUS C21N1833 47Wh replacement battery is designed to restore your laptop’s original performance and mobility. Manufactured to meet or exceed OEM specifications.
Specifications
- Battery Part Number: C21N1833
- Voltage: 7.6V
- Capacity: 47Wh
- Chemistry: Lithium-ion
- Condition: Brand new
Compatibility Information
Compatible Part Numbers (P/N)
- 0B200-03340000
- 0B200-03340100
- C21PtJH
Compatible Models
- VivoBook S14 S431FA
- X431FA
- X431FL
- ZenBook 14 UM431DA
- ZenBook 14 UX431DA
- ZenBook 14 UX431FA
- ZenBook 14 UX431FL
- ZenBook 14 UX431FN
When to Consider Battery Replacement
| Symptom | Description | Recommended Action |
|---|---|---|
| Short Runtime | Battery lasts less than 1 hour on full charge | Replace immediately |
| Swelling/Bulging | Battery case appears expanded or distorted | Replace urgently – safety risk |
| Charging Issues | Won’t charge fully or charges intermittently | Replace battery |
| System Shutdowns | Laptop turns off suddenly when unplugged | Battery replacement needed |
| Battery Warning | OS shows “Consider replacing your battery” | Proactive replacement |
| Age Factor | Battery over 2 years old with reduced performance | Consider replacement |
Estimated Battery Life by Usage
| Usage Scenario | Estimated Runtime | Power Settings |
|---|---|---|
| Web Browsing & Documents | 4-6 hours | Balanced mode, 50% brightness |
| Video Streaming | 3-4 hours | Power saver, 60% brightness |
| Gaming | 1-2 hours | High performance, max brightness |
| Video Conferencing | 2-3 hours | Balanced, camera & mic active |
| Standby/Sleep | 24+ hours | Sleep mode with occasional wake |
Note: These are conservative estimates for a new battery in older hardware. Actual runtime may be shorter than original due to increased software demands and natural hardware aging.
Purchase Assurance
- One business day shipping
- 30-day money back guarantee
- 1-year warranty
- In stock – ready to ship
- Brand new product
- Free shipping
Compatibility Note
We’ve listed the most common compatible part numbers and models above, but this battery fits additional ASUS devices. If you don’t see your specific model or part number listed, please leave it in the order notes during checkout and we’ll verify compatibility before shipping.





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