Description
Product Overview
This is a genuine replacement Asus B31N1635 42Wh laptop battery. It is a new, in-stock item that ships in one business day with free shipping. Enjoy a 30-day return policy and a one-year warranty.
Specifications
- Part Number: B31N1635
- Voltage: 11.4V
- Capacity: 42Wh
- Chemistry: Li-ion
Compatibility
Compatible Part Numbers (P/N)
- 0B200-02560000
- 0B200-02560100
- B31Bl9H
- B31BmE1
Compatible Models
- R702MA Series (e.g., R702MA-BX005T)
- R702UA Series (e.g., R702UA-BX378T)
- R702UB Series (e.g., R702UB-GC116T)
- VivoBook 14 F441MA Series
- VivoBook 17 Series (including A705UA, D705BA, F705NA, F705UA, M705BA, P1700UF, R702QA, X705MA, X705NA, X705UA, and others)
- VivoBook Pro 17 Series (including N705FD, N705FN, N705UD, N705UN, N705UQ)
- X705 Series (X705BA, X705FD, X705FN, X705UD, X705UN)
Note: The compatibility list is extensive but not exhaustive. If your specific model or battery part number is not listed, please leave it in the order notes during checkout, and we will confirm compatibility for you.
When to Replace Your Laptop Battery
Consider replacing your battery if you notice any of the following signs:
| Symptom | Description |
|---|---|
| Short Run Time | The battery drains significantly faster than it used to, even after a full charge. |
| Swelling/Bulging | The battery pack is physically swollen or deformed. Discontinue use immediately. |
| Failure to Charge | The battery does not charge at all or charges only intermittently. |
| Laptop Shuts Down Unexpectedly | The computer turns off suddenly even when the battery indicator shows remaining charge. |
| Battery Not Detected | The operating system fails to recognize the battery is installed. |
| Age | Most lithium-ion batteries show significant degradation after 2-3 years of regular use. |
Estimated Battery Life
Below are conservative estimates for battery runtime with this 42Wh battery under different usage scenarios.
| Usage Scenario | Estimated Runtime |
|---|---|
| Web Browsing / Office Applications | 3 – 4 hours |
| Video Playback | 2.5 – 3.5 hours |
| Light Gaming | 1 – 2 hours |
| Idle / Low Power Mode | 5 – 6 hours |
Important Note: These are estimates for a new battery used with an older laptop. Due to increased power demands from modern software and the natural aging of other laptop components, the runtime will likely be less than what you experienced when the laptop was brand new.
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