Milwaukee's M18 Batteries Are Still 35% Off After Prime Day, and Shoppers Say Their Output Is 'Second to None'

"They last much longer on high-draw tools, i.e., grinders and heavy hammer drills."

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This year's Amazon Prime Day sale proved to have some of the best deals on power tools we've seen recently on everything from impact drivers to orbital sanders, but it was spare batteries that shoppers were scooping up most. And though the sale has ended, Milwaukee users will be pleased to know that the brand's top-selling batteries are still on sale.

Milwaukee's two-pack of M18 Lithium-Ion High-Output 6Ah Batteries is still just $130 on Amazon—a 35% discount on the normal $199 price. This set is Milwaukee's bestselling cordless battery pack on Amazon with over 3,000 shoppers having picked one up for themselves in the last month. It's also available as a bundle deal with a charger for less than $30 more.

Milwaukee M18 Lithium-Ion High-Output 6Ah Batteries, 2-Pack, $130 (was $199) on Amazon

This set of two 6ah batteries works with any of the 200-plus tools in Milwaukee's M18 series. They've been designed to run cooler than other 18-volt battery packs while offering fade-free power and even hold up in rough weather thanks to a shell design that drives water away from the electronic components. There's also a battery life gauge display that conveniently depicts how much runtime is left.

Buying batteries online makes some shoppers weary of knock-offs, but those who have used this set have fully backed it. "Genuine and long-lasting," a shopper claimed. "Purchased a year ago. Repurchasing again as my tool collection is ever expanding. Genuine Milwaukee—they last long and have power output second to none. The cheaper price is because these batteries are assembled in Mexico, but real deal they are."

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Others have commended the batteries' construction and ability to withstand constant use without overheating. "The best batteries for high-output tools," a shopper said. "They last much longer on high-draw tools, i.e., grinders and heavy hammer drills. We had four or five standard Milwaukee batteries and bought these. What a difference! They charge in the same amount of time, don't get hot when being used and last over an hour in most tools."

If you missed this year's Prime Day sale on power tools and you're a Milwaukee user, you can still take advantage of the savings on a great set of replacement batteries. Don't wait though—we're not sure how much longer the savings will last.