The batteries do their job but, if used on a cordless ratchet and ratchet bottoms out fastener, it will shake the battery to pieces, literally. Both of my new batteries have self tapping screws and taped holding them together. Ive had 2 brand new batteries do the exact thing. I have never dropped batteries, or misused them. I like them and would by again but just cant used them on a cordless ratchet.

These batteries are not original but work great. It seems they discharge a bit faster than Milwaukee but fit well in charger and tools. As far as I can tell if using off brand items isnt a problem for you then these are a great option. With the two back quite a bit cheaper than one Milwaukee battery you can get both and charge them more often but still get same work for cost done.

At first, I bought the high output non-branded batteries for Milwaukee. I work outside, and this year it has been cold, in the 20's. The unbranded batteries would run my Milwaukee ratchet for 10 seconds and quit. Recharge them, and same results, 10 seconds, maybe. After they warm up, they work. I cant wait for spring for my tools to work. Change back to these genuine Milwaukee batteries, and it works just fine.