Description
Product Overview
This ASUS C21N1701 39Wh replacement battery is designed to restore your laptop’s original performance and mobility. Manufactured to meet OEM specifications, it delivers reliable power for your computing needs.
Specifications
- Battery Capacity: 39Wh
- Chemistry: Lithium-ion
- Part Number: C21N1701
- Condition: Brand new
Compatibility Information
Part Numbers (P/N)
- 0B200-02640000
- C21PQC5
- C21N1701
Compatible Models
- K406UA
- S406UA
- V406U
- V406UA
- V406UA7100
- VivoBook S14 S406
- VivoBook S14 S406UA
- VivoBook X406UA
- X406/X406U/X406UA series
Note: This list represents common compatible devices. Many additional models and part numbers are supported. If you’re unsure about compatibility, please leave your specific laptop model or current battery part number in the order notes, and we’ll verify before shipping.
When to Consider Battery Replacement
| Situation | Description |
|---|---|
| Short Runtime | Battery drains significantly faster than original capacity, lasting less than 1-2 hours |
| Swelling/Bulging | Battery case appears swollen or causes trackpad/keyboard lifting |
| Charging Issues | Battery won’t charge fully or requires frequent recharging |
| System Warnings | Laptop displays “Consider replacing your battery” or similar alerts |
| Age Factor | Battery is 2+ years old with noticeable performance degradation |
| Random Shutdowns | Laptop turns off unexpectedly even with reported charge remaining |
Estimated Battery Life by Usage
| Usage Scenario | Estimated Runtime |
|---|---|
| Web Browsing & Email | 3-5 hours |
| Document Editing | 4-6 hours |
| Video Streaming | 2.5-4 hours |
| Gaming | 1-2 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 overall system power consumption.
Shipping & Warranty
- Ships within one business day
- 30-day money-back guarantee
- 1-year manufacturer warranty
- Free shipping
- In stock, ready to ship
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