2Packs 6500mAh M18 Battery Compatible with Milwaukee 18V Battery for 48-11-1820 48-11-1850 48-11-1828 48-11-10 48-11-1815 48-11-1852 48-11-1822 48-11-1811 48-11-1840 Cordless Power Tools Batteries

I decided to use these for my weed trimmer. The factory battery that came with the trimmer was an 8ah battery. Since these are 6ah I figured that they would not finish my yard, but would get most of the way through if they actually worked as advertised. Well they actually do! These do work and I can edge and trim everything and the battery dies about 15’ short of finishing, which if they were 8ah would match the factory battery. I do have to switch the battery, but considering that they are much lighter and 2ah less, I am satisfied with my purchase. My lot is 1/3 acre and like I said, I can trim and edge the entire thing and the battery dies about 15’ short of finishing. One thing that I do notice is that these need to cool off a bit more than the factory battery before I can charge them again.

-Updated reviewSeller noticed my negative review and reached out to me right away!He sent me a replacement battery fast delivery and it works perfect.Now I have 2 batteries that work perfect. Using in an impact wrenchand they both are well up to the task.Excellent customer service from this seller.Very happy!-Original review.Purchased 36 days ago and only used a few times.One of the batteries failed yesterday.Started with a full charge and only ran for about 5 minutes in a milwaukee impact wrench and went totally dead. Has been on my charger for 3 days and will not get past 1/2 charge. Too late by 5 days to return.I don't know if the other battery will be any better.Very expensive for only a few uses.

I was hoping these batteries would be a good alternative to the exorbitantly expensive Milwaukee branded batteries. Alas, they worked fine for a short while, but within 3 months of use here's what I encountered. The casing for one of the batteries for no reason separated into two pieces and I couldn't easily fit it back together and glue it so I had to toss it. The remaining battery only holds a charge half as long as my Milwaukee batteries. Both batteries didn't fit into my tools as easily as the original Milwaukee batteries. They get stuck and are hard to remove from the tools and the charger. The search continues...Update: 8/17/21Customer service contacted me after I posted my review. They were extremely helpful after I sent them more information about the battery that came apart. Without questions, they sent out two replacement batteries giving me a do over. Impressive responsiveness. I have not used the replacement batteries yet and hope that my original experience was an anomaly. Regardless, they take care of their customers. I upgraded my review to 4 stars since they will go the extra mile to resolve any problems with their product.

I've got to say, I'm impressed. When I got my first Real post-apprenticeship tool kit, an M18 Fuel impact driver and hammer drill, the kit came with nearly the best tool batteries commercially available at the time, 5.0 XCs. Now about 7 years later, I found these aftermarket 6.0 XC/HO batteries in a pack of two, for less than one 5.0 cost back in the day.The chemistry in Li-ion cells has advanced phenomenally. These 6.0s are no bigger or heavier than my old 5.0s, but they have significantly more available power. I always thought my 7-1/4" battery saw sounded a little rough and wimpy when winding up, but these 6.0 batteries make it sound noticeably smoother, faster, and generally 'happier' to do hard work. My old impact driver and hammer drill also audibly and tangibly perked up with the extra amperage, to the point that I now feel I can put off buying a replacement set for a year or two more. My tools have seen more than their fair share of abuse, but they feel almost new again, with these batteries driving them.My only regret is that I didn't buy upgraded batteries sooner. I will definitely invest in the even larger size M18s and M12 aftermarket batteries, too.The batteries came half charged, and took a charge from my old m18 3a slow charger seemingly faster than the old 5.0s. The battery clip has a really satisfying snugness to it, almost popping itself back out if it isn't snapped all the way in. Much better fit and finish than I expected for this price.If love to tear the case off one and compare the physical cells and wiring to an OEM battery, but I suspect they're nearly the same internals, just with a simpler casing and no brand upcharge.

We have purchased more than 10 of these batteries from Amazon and from another retailer that sells the same name brand. We have given these a fair chance with different tools. They don't last for more than a few minutes even when they show full charge. They show 3 bars charge and they just die. This is the bottom line, they are nothing like the original Milwaukee batteries and there is a reason they are so cheap. The charge just doesn't last. If you need a battery that only lasts a couple minutes, buy these, otherwise, don't waste your money on them.

They work I used them day in day for 6 months and then. The charges start lasting less . I need to get two and then I got two more . Out of the four of them two stop working all together . The other two still working . I have both fast charger and the slow charger. So I run both for different reasons . Most time I drain the battery before I charge them back up .I wish they had like replace when they just stop before a full year. But they don’t .For the valve at the time if was worth the amount they lasted.Now would I buy more not sure yet .I case your like wondering what I usedI have Hammer drill , impact drill ,worm saw, saw zaw, multi tool , all m18.I’m hvac installer I need battery at the time and couldn’t get m18 battery at the time one battery $199 . I had to budget some things .So like I said this was about budget .If they other two still worked then I would be like more like to say yes buy them . But because half of what I got is not working at all that not good odds of the product.