Description
Product Overview
This MSI BTY M55 90Wh battery is a genuine replacement part designed specifically for compatible MSI laptops. It delivers reliable power and performance for your mobile computing needs.
Specifications
- Battery Type: Li-ion
- Capacity: 90Wh
- Voltage: 15.4V
- Part Number: MSI BTY M55
- Condition: Brand new
Compatibility Information
Part Numbers (P/N)
- MSI BTYM55
- MSI S9N-0J4J200-SB3
- MSI S9N-0J4J210-CLE
- MSI S9N0J4J211CLE
- MSI-BTY-M55-90Wh
Compatible Models
- MSI Alpha 15/17 B5EE, B5EEK series
- MSI Bravo 15 C7UDX
- MSI Crosshair 15/17 A11UCK, A11UDK, A11UEK, A11UGK series
- MSI Crosshair 15/17 A12UEZK, A12UGSZK, A12UGZK series
- MSI Crosshair 15/17 B12UEZ, B12UGSZ, B12UGZ series
- MSI GF66 Katana/Thin 11UD, 11UE, 11UG, 11UH series
- MSI GF76 Katana/Thin 11UD, 11UE, 11UG, 11UHK series
- MSI GL66 Leopard 11UE, 11UEK, 11UH series
- MSI Katana GF66/GF76 11SC, 11UC, 11UE, 11UG series
- MSI Pulse GL66/GL76 11SCK, 11UCK, 11UDK, 11UE, 11UGK series
- MSI Pulse GL66/GL76 12UEOK, 12UEK, 12UGK, 12UGSZOK series
- MSI Sword 15 A11SC, A11UC, A11UD, A11UE, A11UG series
- MSI WF66 11UI, 11UJ series
- MSI WF76 11UI
Note: This list represents only a portion of compatible models. If you don’t see your specific model listed, please leave your laptop model or current battery part number in the order notes during checkout, and we’ll verify compatibility for you.
When to Consider Battery Replacement
| Situation | Description |
|---|---|
| Short Runtime | Battery drains significantly faster than when new, lasting less than 1 hour under light use |
| Swelling/Bulging | Battery case appears swollen or causes laptop case to bulge – replace immediately |
| Charging Issues | Battery won’t hold charge, charges very slowly, or doesn’t charge past a certain percentage |
| System Warnings | Laptop displays “Consider replacing your battery” or similar system messages |
| Age Factor | Battery is 2+ years old with regular use and showing performance degradation |
| Random Shutdowns | Laptop shuts down unexpectedly even when battery indicator shows remaining charge |
Estimated Battery Life by Usage
| Usage Scenario | Estimated Duration |
|---|---|
| Web Browsing & Office Work | 3-4 hours |
| Video Streaming | 2-3 hours |
| Gaming | 1-1.5 hours |
| Idle/Standby | 6-8 hours |
| Mixed Use | 2.5-3.5 hours |
Note: These are conservative estimates for a new battery in an older system. Actual battery life may be shorter than when your laptop was new due to increased power demands from software updates and natural hardware aging.
Shipping & Warranty
- Ships within one business day
- 30-day money-back guarantee
- 1-year manufacturer warranty
- In stock – ready to ship
- Free shipping included
- 100% brand new product





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