JUNWOOD 2Pack Upgraded 12.0Ah Replacement for Milwaukee M18 Battery High Output Compatible with Milwaukee 18V Battery 48-11-1820 48-11-1850 48-11-1828 48-11-1860 48-11-1880 and 18 Volt Cordless Tools

I got 2 of these batteries, they are not a full 12Ah, likely only 6Ah. The run time on my shop vac is only half the time of my original Milwaukee 12Ah battery. The power output on this battery is poor, tried to cutting wood with my Milwaukee portable table saw, had to cut slower otherwise the motor would bog down. Also these batteries are half the weight of my original Milwaukee 12 amp hour battery. No bargain here, you get what you pay for, a cheap battery for a cheap price. Very disappointed!!

They are ok but they don’t hold up as long as you would expect.

These battery's charge on my original charger and do have a lot of life. So far no complaints. (Fair warning) the bigger the battery the heavier the tool. I primarily purchased them for my grinder which is a battery hog.

Absolutely waste of money. Fully charge and lasted 4 minutes... complete junk

These batteries do not hold up under heavy use a burnout internally somewhere not worth the money can't find a way to get them to warranty it because I'm outside of window of 30 days