Description
Product Overview
This genuine replacement battery is specifically designed for Asus Zenbook UX21 series laptops. With 35Wh capacity and exact compatibility, it restores your laptop’s original performance and mobility.
Specifications
- Capacity: 35Wh
- Voltage: 7.4V
- Chemistry: Lithium-ion
- Condition: Brand new
- Part Number: C23-UX21
Compatibility Information
Part Numbers (P/N)
- 0B200-00010000
- 0B200-00010100
- 0B23-003F0AS
- C23-UX21
Compatible Models
- Asus Zenbook UX21A
- Asus Zenbook UX21E
- Asus Zenbook UX21EP
Note: This list represents common compatible models and part numbers. 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 for you.
When to Replace Your Battery
Consider replacing your laptop battery if you notice any of these signs:
| Symptom | Description |
|---|---|
| Short Runtime | Battery drains significantly faster than original capacity, lasting less than 1-2 hours |
| Swelling/Bulging | Battery case appears swollen or causes laptop case to not close properly |
| Charging Issues | Battery won’t hold charge or requires frequent recharging |
| System Warnings | Operating system shows “Replace Battery” or similar warnings |
| Age | Battery is over 2-3 years old with noticeable performance decline |
| Random Shutdowns | Laptop shuts down unexpectedly even with charge remaining |
Expected Battery Life
Estimated runtime for Asus UX21 with 35Wh battery:
| Usage Scenario | Estimated Runtime |
|---|---|
| Web Browsing | 3-4 hours |
| Document Editing | 4-5 hours |
| Video Playback | 2.5-3.5 hours |
| Light Usage (Reading) | 5-6 hours |
| Gaming/Heavy Tasks | 1.5-2.5 hours |
Important Note: These are conservative estimates for replacement batteries. New batteries in older systems may provide shorter runtime compared to when your laptop was new, due to increased software demands and natural hardware aging.
Purchase Benefits
- One Business Day Shipping
- 30-Day Money Back Guarantee
- 1-Year Warranty
- In Stock – Ready to Ship
- Brand New Product
- Free Shipping
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