We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
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

  • CompatibilityGT72 GT72 2PE-022CN GT72 2QD-005XCN GT72 2QD-1019XCN GT72 2Q
  • Battery TypeLithium-Ion
  • 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.

Highlights

  • 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

Specifications

Part NumberBTY-L77 MS-1781 MS-1782 MS-1783 MS-1785
CompatibilityGT72
GT72 2PE-022CN
GT72 2QD-005XCN
GT72 2QD-1019XCN
GT72 2QD-292XCN
GT72 2QE-1679CN
GT72 2QE-1813CN
GT72 2QE-209CN
GT72 2QE-212CN
GT72 6QD-005XCN
GT72 6QD-201XCN
GT72 6QD-839XCN
GT72 6QD-840XCN
GT72 6QE-209CN
GT72S 6QD-007CN
GT72S 6QD-841XCN
GT72S 6QE-007CN
GT72S 6QE-487CN
GT72S 6QF-018CN
GT72S 6QF-054CN
GT72S 6QF-064CN
GT72S 6QF-065CN
GT72S Tobii
GT80
GT80 2QC-221CN
GT80 2QD-042CN
GT80 2QE-034CN
GT80 2QE-035CN
GT80 2QE-040CN
GT80S 6QE-050CN
GT80S 6QE-217CN
GT80S 6QE-218CN
GT72 2QE DOMINATOR PRO G
GT72 2PC DOMINATOR
GT72 2PE-022CNGT72 2QD DOMINATOR G
GT72 6QD DOMINATOR G HEROES SPEC
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.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.