Description
Product Overview
This ASUS C21N1818 1 37Wh battery is a genuine replacement part designed specifically for compatible ASUS VivoBook 15 models. Manufactured to meet original equipment specifications, it ensures reliable performance and safe operation.
Specifications
- Part Number: C21N1818 1
- Capacity: 37Wh
- Voltage: 11.4V
- Chemistry: Lithium-ion
- Condition: Brand new
Compatibility Information
Compatible Part Numbers (P/N)
- C21N1818
- C21N1818 1
Compatible Models
- ASUS VivoBook 15 F512FA
- ASUS VivoBook 15 F512FB
- ASUS VivoBook 15 F512FJ
- ASUS VivoBook 15 F512FL
- ASUS VivoBook 15 F512UA
- ASUS VivoBook 15 X512FA
- ASUS VivoBook 15 X512FB
- ASUS VivoBook 15 X512FL
- ASUS VivoBook 15 X512UA
Note: This list represents commonly compatible models. If your specific model isn’t listed, please include your laptop model or current battery part number in the order notes, and we’ll verify compatibility before shipping.
When to Replace Your Laptop Battery
| Symptom | Description | Recommended Action |
|---|---|---|
| Short Runtime | Battery drains significantly faster than original capacity, lasting less than 1 hour | Replace battery |
| Swelling/Bulging | Battery case appears swollen or causes trackpad/keyboard to lift | Immediate replacement required |
| Not Charging | Battery won’t charge despite working charger and power source | Replace battery |
| Overheating | Battery becomes unusually hot during use or charging | Replace battery |
| System Warnings | OS shows “Replace battery” or “Battery health poor” messages | Replace battery |
| Age | Battery is 2-3 years old with noticeable performance decline | Consider replacement |
Estimated Battery Life
| Usage Scenario | Estimated Runtime | Notes |
|---|---|---|
| Web Browsing | 3-4 hours | Moderate brightness, multiple tabs |
| Document Editing | 4-5 hours | Word processing, spreadsheets |
| Video Streaming | 2.5-3.5 hours | 1080p video, medium brightness |
| Light Gaming | 1.5-2.5 hours | Casual games, low settings |
| Standby/Sleep | 24-48 hours | With occasional wake-ups |
Important Note: These are conservative estimates for a new battery in used hardware. Actual runtime may be shorter than when your laptop was new due to increased software demands and general 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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