Power your Milwaukee M12 tools with confidence. The M12 REDLITHIUM™ XC Extended Capacity Battery delivers 4.0Ah (48Wh) of runtime—even in sub-zero temperatures. Built with advanced REDLINK™ intelligence, it offers overload protection and temperature control to extend battery life and maintain consistent power. Compact yet powerful, this 12V lithium-ion pack ensures longer usage, more recharges, and fewer interruptions on the job.
Key Features:
Compatible with all Milwaukee M12 cordless tools
4.0Ah capacity for extended run time
Performs reliably in extreme cold conditions
REDLINK™ circuitry for overload and discharge protection
Durable design for professional-grade use
Dimensions:
Height: 9.94 in
Width: 3.35 in
Customer Reviews (4.8 / 5 · 52 reviews)
Isabella★★★★★
Was pleasantly surprised how well it held its charge after sitting in my unheated garage for a week. The cold-weather performance is a real bonus for winter projects. Plenty of power to get through a full afternoon of drilling without swapping packs.
Amelia★★★★★
Swapped out my old 3.0 for this 4.0Ah and the extra runtime is noticeable on my impact driver. It holds up well even when I’m working outside in the cold.
Emily★★★★★
Finally got these on clearance and the cold-weather performance is a game changer—my impact driver kept going strong when my old batteries gave up. A full day of work and I only used about half the charge on the 4.0Ah pack.
Ryan★★★★★
Swapped out my old 2.0Ah batteries for this 4.0Ah and the extra runtime is a game-changer—I can finish a whole project without swapping packs. It still fits perfectly in my compact tools, and the cold weather performance is a nice bonus.
Lily★★★★★
Went out to the garage this morning and it fired up the impact driver without hesitation, even though it was below freezing last night. The runtime is solid so far.
Matthew D.★★★★★
The 4.0Ah capacity keeps my impact driver running for hours without swapping batteries, which is a huge upgrade from the 2.0Ah packs I had before. Even in cold weather, it holds its charge noticeably better.
Mia C.★★★★★
Used it in my unheated garage all winter and it kept running strong on my impact driver. For a 4.0Ah pack this size, the cold-weather performance is impressive.
Harper★★★★★
Got this on sale to replace an older battery and the 4.0Ah capacity is noticeably better for my drill—lasts through multiple jobs without needing a swap.
Alexander★★★★★
I’m honestly surprised by how much longer this 4.0Ah pack lasts compared to the standard 2.0Ah—it easily got me through a full afternoon of drilling without needing a swap. The cold-weather performance is a huge plus for my winter garage projects.
Claire★★★★★
Even in freezing weather this 4.0Ah pack keeps my impact driver running strong for a full day of deck work. The runtime is a huge step up from my old 2.0Ah batteries.
