All of the powerful, expensive power tools in the world are worthless if you don’t have enough batteries. Extra batteries means you can use multiple tools without constantly switching batteries and work longer because you can simply swap in a fresh one whenever you need. If you’ve bought into the Milwaukee power tool ecosystem, Walmart is giving you the chance to score a pair of batteries for $66 less than usual.
A 2-pack of Milwaukee M18 RedLithium 5Ah Batteries is just $134 right now, 33% off its normal $200 price tag. They’re compatible with all 250+ Milwaukee M18 power tools, and they come packed with more technology and clever features than you might expect in a battery.
Rare DealMilwaukee says these genuine batteries offer up to 2.5 times more runtime, 20% more power, and twice the battery life of standard lithium-ion batteries. There’s onboard tech that coordinates the battery, tool, and charger to ensure peak performance and prevent overload. You’ll also find an integrated fuel gauge, so you can quickly check how much juice is left. These are also very durable batteries, built with premium construction to work as advertised even in extreme jobsite conditions.
One reviewer noted that these batteries are built to Milwaukee’s high standards. They’re a relatively new, high-capacity battery from the company, so they offer “more power and capacity than my older batteries.”
Another customer wrote that these batteries “run all day and recharge quickly. I definitely recommend these.”
Deals We’re Loving
- Milwaukee M18 High Output Battery Pack, $149 (was $168) at Walmart
- Milwaukee M18 Cordless Caulk and Adhesive Gun, $200 (was $249) at Walmart
- Milwaukee 56-Piece Ratchet and Socket Set, $138 (was $159) at Walmart
The Milwaukee M18 RedLithium 5Ah Batteries will never not be nice to have on hand, especially for just $134. And beyond just having extras, their high capacity and smart features mean they can make your tools work better than they have in the past. But don’t delay: the steepness of this discount makes us think it’s not going to last too long.
About the author

Cameron LeBlanc
Commerce Writer, Autoblog
