Description
Product Overview
This ASUS C21N1504 38Wh battery is a genuine replacement part designed specifically for compatible ASUS devices. Manufactured to meet original specifications, it ensures reliable performance for your laptop.
Specifications
- Battery Capacity: 38Wh
- Part Number: C21N1504
- Condition: Brand new
- Chemistry: Lithium-ion
Compatibility Information
Compatible Part Numbers (P/N)
- 0B200-01710100
- C21N1504
Compatible Models
- ASUS E205SA
- ASUS EeeBook E205SA
- ASUS Transformer Book Flip TP200SA
- ASUS Transformer Book Flip TP200SA-EDU
Note: This list represents commonly compatible models. Many additional compatible part numbers and models exist. If you’re unsure about compatibility, please leave your specific model number or battery part number in the order notes during checkout, and we’ll verify compatibility before shipping.
When to Replace Your Battery
| Situation | Description |
|---|---|
| Short Runtime | Battery drains significantly faster than original capacity, lasting less than 1-2 hours under normal use |
| Swelling/Bulging | Battery case appears swollen or distorted, indicating potential safety hazard |
| Charging Issues | Battery won’t charge fully, charges intermittently, or doesn’t hold charge |
| System Warnings | Operating system displays “Replace Battery” or “Battery Health Critical” messages |
| Age | Battery is over 2-3 years old with noticeable performance degradation |
| Random Shutdowns | Laptop shuts down unexpectedly even with reported charge remaining |
Estimated Battery Life
| Usage Scenario | Estimated Runtime |
|---|---|
| Web Browsing & Email | 4-6 hours |
| Document Editing | 5-7 hours |
| Video Streaming | 3-4 hours |
| Gaming | 1.5-2.5 hours |
| Mixed Use | 4-5 hours |
| Standby/Sleep | Up to 48 hours |
Note: These are conservative estimates for a new battery used with older hardware. Actual runtime may be shorter than when your device was new due to increased power demands from aging components and modern software.
Purchase Benefits
- Next 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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