what is the MHA rating?

No idea what MHA is. But if you mean mAh rating, then Energizer lists it as 178. Hope that helps.

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⚡ Power your essentials with confidence—never get caught powerless again!

POWER THAT LASTS - Dependable 6V output fuels your essential devices without fail.
COMPACT YET MIGHTY - Miniature size packs a punch without bulk—ideal for specialty gadgets.
READY WHEN YOU ARE - Up to 3 years shelf life means power is waiting, even in standby mode.
VERSATILE COMPATIBILITY - Perfect fit for cameras, wireless headsets, glucose monitors, and more.
TRUSTED BRAND RELIABILITY - Energizer’s proven quality ensures your devices stay powered longer.

The Energizer 4LR44 A544 Batteries (2 Pack) are miniature alkaline specialty batteries delivering a reliable 6V power supply. Designed for a variety of devices including cameras, wireless headsets, and medical monitors, these batteries offer up to 3 years of shelf life, ensuring they’re ready whenever you need them. Compact, dependable, and backed by Energizer’s trusted brand, they’re the go-to choice for professionals who demand consistent performance from their gadgets.

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Package Dimensions L x W x H	11.8 x 7.7 x 1.7 centimetres
Package Weight	0.02 Kilograms
Product Dimensions L x W x H	12 x 79 x 119 millimetres
Item Weight	18 Grams
Brand	Energizer
Colour	Silver
Included components	Batteries
Model year	2015
Part number	4LR44 A54
Size	Pack of 2
Style	A544 4LR44 (Pack of 2)
Guaranteed software updates until	unknown

Energizer 4LR44 A544 Batteries (2 Pack) - Specialty Miniature Alkaline 6V Battery - Reliable Power - 3 Year Shelf Life

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