Description
Product Overview
This is a genuine replacement battery for Toshiba laptops, part number PA3818U-1BRS with 48Wh capacity. It is a brand new product with one business day shipping, 30-day refund policy, one-year warranty, in-stock inventory, and free shipping.
Specifications
- Part Number: PA3818U-1BRS
- Capacity: 48Wh
- Chemistry: Lithium Ion
- Condition: Brand New
Compatible Part Numbers (P/N)
PA3818U-1BRS, PA3634U-1BRS, PA3635U-1BAM, PA3635U-1BRM, PA3817U-1BAS, PA3817U-1BRS, PABAS178, PABAS201, PABAS228
Compatible Models
Toshiba DynaBook T551, Equium U400, NB510, Portege M800, Portege M900, Portege T110, Satellite A660/A660D/A665/A665D, Satellite B40-A, Satellite C600D/C630/C640/C650/C650D/C655/C655D/C660/C660D/C665/C665D/C670/C670D/C675/C675D, Satellite L310/L510/L515/L630/L635/L640/L645/L650/L650D/L655/L655D/L670/L670D/L675/L675D/L730/L735/L735D/L740/L745/L745D/L750/L750D/L755/L755D/L760/L770/L770D/L775/L775D, Satellite M300/M305/M505/M640/M645, Satellite P740/P745/P750/P750D/P755/P755D/P770/P770D/P775, Satellite Pro C650/C650D/C660/C660D/L310/L510/L650/L670/L770/L775/M300/U400/U400D/U500/U505, Satellite T115D/T135D, Satellite U400/U400D/U405D/U500
Important Compatibility Note
There are many more compatible part numbers and models than we can list here. If you’re unsure about compatibility, please leave your specific laptop model or current battery part number in the order notes during checkout, and we will verify compatibility for you.
When to Replace Your Battery
| Situation | Description |
|---|---|
| Short Runtime | Battery lasts less than 1 hour on full charge when it used to last 2-3 hours |
| Swelling/Bulging | Battery case appears swollen or distorted in shape |
| Charging Issues | Battery won’t charge fully or charges very slowly |
| System Warnings | Laptop shows “Consider replacing your battery” or similar messages |
| Random Shutdowns | Computer turns off unexpectedly even with charge remaining |
| Age | Battery is 2-3 years old with noticeable performance decline |
Estimated Battery Life
| Usage Scenario | Estimated Runtime |
|---|---|
| Web Browsing | 2-3 hours |
| Document Editing | 2.5-3.5 hours |
| Video Playback | 1.5-2.5 hours |
| Gaming | 1-1.5 hours |
| Standby/Sleep | 8-12 hours |
Note: These are conservative estimates for a new battery used with older hardware. Due to increased software demands and natural hardware aging, runtime will typically be shorter than when your laptop was new.
Shipping & Warranty
- Ships in 1 business day
- 30-day money back guarantee
- 1-year manufacturer warranty
- Free shipping
- Brand new product
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