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Rectangular black lithium-ion laptop battery with label showing 15.2V 99.99Wh 4-cell

BESIGN

BESIGN BTY-M6M 99.99Wh 15.2V 4-Cell 2 in 1 accessory

SKU CH-Z9CN-8S4E3 MPN BTY-M6M

A 99.99 Wh, 15.2 V lithium-ion replacement battery for select MSI Creator, Stealth, Raider, Dragon Tiamat and Workstation laptops

  • 99Wh capacity powers demanding workloads through long sessions
  • 2V 4-cell Li-ion design matches original laptop specifications
  • UL CE FCC RoHS certified with overheat short-circuit overload protection
  • Grade A cells deliver fast charging and low power consumption
  • Direct replacement for MSI Creator GS66 GE66 GE76 WS66 WE76 series

99.99 Wh replacement battery for MSI laptops

This 15.2 V lithium-ion pack supplies 99.99 Wh and 6578 mAh across four cells. It is built as a direct replacement for the BTY-M6M module found in several MSI Creator 15, GS66 Stealth, GE66 Raider, GE76 Dragon Tiamat, WS66 and WE76 machines.

Sustained discharge with Grade A cells

Grade A cells keep voltage stable during long work sessions instead of sagging after a short burst. The integrated circuit protection guards against overheat, short circuit and overload so the pack delivers consistent power until the charge is depleted.

Certified safety and thermal control

UL, CE, FCC and RoHS certifications confirm the pack meets recognised safety standards. Built-in protection circuits manage temperature and current limits during normal charging and discharging, keeping the battery stable without extra cooling hardware.

How it compares

Measured against everything we stock in 2-in-1 Device Accessories, at today’s prices. Recalculated every night.

Price $77.99
Pricier than about 66% of the 7,473 comparable items (median $56.99).

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Specifications

No published specifications for this item yet.

Questions about this item

Does the 99.99Wh 4-cell Li-ion pack run hot or draw extra power during all-day use?

The battery includes overheat, short-circuit and overload protection and uses Grade A cells for low power consumption, so it stays cool and efficient during extended sessions.

What must my MSI laptop already have for this BTY-M6M replacement to work?

Your laptop must be one of the listed Creator 15, GS66 Stealth, GE66 Raider, GE76 Dragon Tiamat, WS66 or WE76 models that originally use the BTY-M6M or 4ICP8/35/142 pack.

Will the 15.2V 6578mAh cell count match the runtime of the original battery in my older MSI machine?

Yes, the 4-cell 99.99Wh design matches the factory specification for the supported series, delivering the same voltage and capacity as the original pack.

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