Description
Product Overview
This ASUS C21N1333 38Wh battery is a genuine replacement part designed specifically for compatible ASUS devices. Manufactured to meet original equipment specifications.
Specifications
- Battery Type: Lithium-ion
- Capacity: 38Wh
- Voltage: 7.6V
- Condition: Brand new
- Part Number: C21N1333
Compatibility Information
Part Numbers (P/N)
- 0B200-00860000
- 0B200-00860100
- 0B200-00860200
- 0B200-00860300
- 0B200-00860400
- C21PqC5
Models
- Transformer Book Flip TP550LA
- Transformer Book Flip TP550LD
- Transformer Book Flip TP550LJ
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 or battery part number in the order notes during checkout, and we will verify compatibility for you.
When to Consider Battery Replacement
Here are common indicators that your laptop battery may need replacement:
| Symptom | Description |
|---|---|
| Short Battery Life | Battery drains significantly faster than when new, lasting less than 1-2 hours with normal use |
| Swelling/Bulging | Battery case appears swollen or deformed, which can be a safety hazard |
| Failure to Charge | Battery won’t charge despite using working charger and proper connections |
| Inaccurate Charge Reading | Battery percentage jumps unexpectedly or doesn’t reflect actual capacity |
| System Shutdowns | Laptop shuts down suddenly even when battery shows remaining charge |
| Age Factor | Battery is over 2-3 years old with noticeable performance degradation |
Estimated Battery Life
Conservative estimates for 38Wh battery performance across different usage scenarios:
| Usage Scenario | Estimated Runtime |
|---|---|
| Web Browsing & Email | 3-4 hours |
| Document Editing | 4-5 hours |
| Video Streaming | 2-3 hours |
| Gaming | 1-2 hours |
| Idle/Standby | 6-8 hours |
Important Note: These are conservative estimates for a new battery used with older hardware. Actual battery life may be shorter than when your device was new due to increased power demands from software updates and natural hardware aging.
Purchase Benefits
- Same-day shipping on orders placed before 2 PM
- 30-day money-back guarantee
- 1-year manufacturer warranty
- In-stock ready to ship
- Brand new genuine product
- Free shipping included





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