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Black rectangular 9-cell lithium-ion laptop battery with MSI branding

MSI

MSI BTY-L77 11.1V 7500mAh 9-Cell Laptop Battery

SKU CH-RTM2-0JREX

A 9-cell lithium-ion replacement battery delivering 7500mAh capacity for compatible MSI GT-series laptops

  • Battery typeLithium-Ion
  • Compatible withGT72 GT72 2PE-022CN GT72 2QD-005XCN GT72 2QD-1019XCN GT72 2Q
  • 7500mAh capacity extends runtime between charges
  • 9-cell lithium-ion design delivers 83Wh energy
  • Fits 11.1V or 10.8V MSI GT series laptops
  • CE and RoHS certified for safety assurance
  • One-year replacement warranty covers defects

Direct replacement for MSI GT series

The MSI BTY-L77 is a 11.1V lithium-ion battery built to fit compatible GT72, GT72S and GT80 models. It uses nine premium cells to deliver 7500mAh and 83Wh of capacity. The part is certified by CE and RoHS and carries a one-year replacement warranty. Buyers who need a different voltage or form factor cannot use this unit.

7500mAh capacity for extended runtime

The 83Wh rating provides enough headroom for typical productivity, streaming and light multitasking sessions away from mains power. Heavy workloads such as sustained gaming or rendering will deplete the charge faster. Users who require all-day autonomy without recharging should consider a higher-capacity alternative if available.

Low heat and silent operation

Lithium-ion chemistry generates minimal warmth during normal discharge and the pack has no moving parts, so it adds no audible noise. Power draw scales with the laptop's load rather than the battery itself. The design meets original manufacturer specifications for thermal stability in the supported chassis.

How it compares

Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.

Price $27.99
Cheaper than about 56% of the 27,790 comparable items (median $30.99).

Specifications

Product
Part numberBTY-L77 MS-1781 MS-1782 MS-1783 MS-1785
Power
Battery typeLithium-Ion

Questions about this item

Will the BTY-L77 9-cell 7500mAh battery fit my GT72 2QD-1019XCN without modifying the chassis?

Yes, the BTY-L77 is listed as compatible with the GT72 2QD-1019XCN and other models in the GT72, GT72S, GT80, GT80S and WT72 series, matching the original MS-1781, MS-1782, MS-1783 and MS-1785 part numbers.

How can I verify the 11.1V 83Wh battery is charging correctly after installation?

The laptop's power indicator should show charging when plugged in, and the operating system's battery report will confirm the design capacity of 7500mAh at 11.1V once the first full charge cycle completes.

Does the BTY-L77 package include a new AC adapter or only the 9-cell battery itself?

The product is a laptop battery only; the AC adapter is not included and must be purchased separately if your existing charger is worn or lost.

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