Description
Product Overview
This ASUS C21-X502 38Wh 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
- Capacity: 38Wh
- Voltage: 14.4V
- Condition: Brand new
- Part Number: C21-X502
Compatibility Information
Compatible Part Numbers (P/N)
- C21-X502
- C31-X502
Compatible Models
- ASUS Pro PU500, PU500CAs
- ASUS Pro X502, X502C, X502CAs
- ASUS VivoBook S500C, S500CAs
- ASUS VivoBook V500C, P500CAs
Note: Compatibility list is not exhaustive. If your specific model or part number isn’t listed, please leave your laptop model or current battery part number in the order notes during checkout. We will verify compatibility before shipping.
When to Replace Your Battery
Consider replacing your laptop battery if you notice any of these common symptoms:
| Symptom | Description | Recommended Action |
|---|---|---|
| Short Runtime | Battery drains significantly faster than original capacity (less than 1 hour for normal use) | Replace battery |
| Swelling/Bulging | Battery case appears swollen or distorted | Immediate replacement for safety |
| Not Charging | Battery won’t charge despite working charger | Replace battery |
| System Errors | Laptop shows “battery not detected” or similar errors | Replace battery |
| Age | Battery is over 2-3 years old with reduced performance | Consider replacement |
Expected Battery Life
Estimated runtime for ASUS C21-X502 38Wh battery under different usage scenarios:
| Usage Scenario | Estimated Runtime | Power Settings |
|---|---|---|
| Web Browsing | 2-3 hours | Balanced mode, medium brightness |
| Document Editing | 3-4 hours | Power saver mode, low brightness |
| Video Playback | 1.5-2.5 hours | Balanced mode, medium brightness |
| Gaming | 1-1.5 hours | High performance, high brightness |
| Standby/Sleep | 24-48 hours | Sleep mode with occasional wake |
Important 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. Newer operating systems and applications typically consume more power than when your laptop was originally manufactured.
Purchase Benefits
- Same day shipping on orders before 3PM
- 30-day money back guarantee
- 1-year manufacturer warranty
- In stock, ready to ship
- Brand new product
- Free shipping included
Reviews
There are no reviews yet