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

Gracias este producto dura. Mucho no se descomponen fácil lo recomiendo

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.

We had issues with our first set of batteries and left a review. The seller contacted us and sent us a replacement. So far so good 😊

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.

Lasted less than 4 months, and with very light use.You should really avoid this battery.Update.Second battery just failed exactly as the first one, Stone dead and the charger refuses to charge. Flashes "Defective".Note- the seller has contacted me many times with all kinds of inane suggestions, but no replacements, and countless e-mails but the point is, the battery is a BRICK!!Update..Seller sent two replacement batteries. Both had light charges and would operate various tools. When inserted into the charger, both flashed red/green, indicating bad battery. Made no sense at all! Here is the problem, this battery will not charge with another battery, in this case a 12v, in the Milwaukee two battery charger. Removed 12v battery and appears to work as they should. These are a very high amp battery and they take a long time to charge, and the Milwaukee charger is not up to the task of two batteries at once. Also, the battery appears to discharge from useable to completely dead if left inserted in the tool. Going to check the time frame on this.I did in all fairness upgrade the rating and must note that the seller is very concerned with customer satisfaction. I will contact them again to to resolve the debt I owe them.

Still works good

I have charges both batteries multiple times and they are working just like they should.Price was awesome and fast shipping.I'm happy

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.

These after market batteries are the worst thing I have ever purchased from Amazon. The other problem is that they say they are not returnable. One will not take a charge and the other one is defective, garbage garbage garbage. No more buying batteries from Amazon or their partners. This is the second set I purchased as a gift for my son and again they are garbage.