waitley 2 Pack 12V 6A Replacement Battery Compatible with Milwaukee 12V Power Tools (Not Made in Milwaukee)

work perfectly w/ all my m12 tools, no issues. after a few months of use i am very impressed for the price. more comparable batt life to a name brand 4ah, but these preform well for every application i have tried. ive used them in every tool i have, from the m12 vacuum, to drills, drivers, impacts, saws, cutoffs, the rotary tool, and the 12v compact blower. i got these just to use as beater batts in my vacuum, but have ended up using them in my regular rotation for all my tools. they charge normally, and fit well in all my tools. The battery check button/ light is also very handy. would not hesitate to reorder, great value for the price if you just need to get the jobs done and arent bothered by the name on the side of the tool or battery.

Work well, and last a pretty long time .almost as long as the milwaukee brand. Haven't heated up like other brands i have tried. All in all a very good alternative to name brand batteries. Sometimes a bit tough to remove just remember to pinch towards the front and they slide out pretty easily.

These fit the tools fine, have long charge even after being in use and in outside weather on jobs and no signs of degradation. Will buy more if needed.

UPDATE: I usually wait a while before leaving a review, if at all, just to make sure I've used the product and can be honest. This is an update to my original review with added stars because customer support / seller has replaced both batteries at no charge to honer the warranty. I never asked for replacements because it was the risk I took not buying genuine. A+ customer support. ORIGINAL REVIEW: Plastic clips molded to the sides where it attaches to the tool are oversized, brittle and break off just by sliding into the tool. I don't slam in the batteries, I don't throw of drop my tools. I make my living using them and take care of every tool I own. I have plumbing tools from the 1980s that look and feel like new still and they get used weekly. The other issue is that these batteries get hot quickly and don't charge fully after 4 or 5 times. In other works the battery cells burn out after 4 or 5 charge cycles. I will just pay more for the genuine Milwaukee batteries

To start out these batteries fit well in all the tools I’ve tried it in on the m12 platform and have run every tool I’ve tested them with seemingly identical. One thing Milwaukee is known for is the quality and durability of their batteries. Also the technology in the tools and batteries to communicate with each other to avoid damage to either the battery or tool. They last long for the workday and last a years before failing. That being said I remain concerned putting one of these on certain hi drain tools such as m12 circ saw, sawzall, and running them really hard for long periods of time. I have multiple led lights on the m12 platform that I like to use these to rotate on.. I think I have 10 or more Milwaukee m12 genuine batteries: 3-6ah, 3-4ah, and 4-2ah (or 1.5ah). I have at least 10 m12 tools including the usb charger. I’ve had these for 5+ years and 90% of them still perform very well with heavy use. I’ve run hundreds of thousands of 3”screws in my m12 fuel 3rd gen.. If you’re still reading I’m guessing you’re well into the platform and likely know im right and there’s a reason there are so many red fans. In that case I’d tell you just order a couple. You spend more on bits and blades.. Obviously if cost isn’t a factor I’d say go buy genuine batteries in a tool set deal from Home Depot because they are super well made and dependable.. and I have no regrets doing that for work. The rubber on the bottom is a bit better on the genuine ones and will likely last longer. I’ve only had these in rotation for about 3 months but so far money well spent. They run in my impact just fine running 3” deck screws, these are a great price, have a battery life indicator button on the back, and are hard to tell a difference in any tool so far. I will try and update if they fail. I bought a single 6ah then I got a 2 pack a little after. If your just getting into the m12 platform I’d say go buy a drill set that comes with batteries when Home Depot has Christmas deals or “special buy of the day”but never pay full price for their batteries alone.. They are great but priced insanely too high.

Waitley M12. Great batteries. Great price. No complaints

Gave new power to my 12 V tools. I forgot how powerful they were until I got new batteries.

Not a terrible battery. Looking at it, you're like "wow almost identical" Looks is where it ends. As soon as you plug one of them in and test it, you can immediately tell this is far from a Milwaukee battery. Definitely lacks power. I'd say these are 70-80% power load of an oem pack. Mostly bought these for giggles and to test out. If you need a budget friendly battery for your tools, these are it. I suggest just getting the real deal to maximize the specs of your Milwaukee tools.