Energup 2Pack 5500mAh XC Battery for Milwaukee Battery 18V Lithium Replacement for M18 Milwaukee 48-11-1840, 48-11-1815, 48-11-1820, 48-11-1850 Lithium-ion Milwaukee 18-Volt Battery

Pack of two, took the 1st charge, but now one of them will not charge at all. Of course the return window is closed and Amazon does not provide any information on how to handle defective products.Update: The company reached out to me and extended a refund for the faulty battery. I will see how the 2nd one does and update again if needed. I have to take some responsibility here and admit that I did not realize these were not authentic Milwaukee batteries. This is a huge savings over the originals, but the jury is still out on whether or not you save any $$. Stay tuned....

I use exclusively Milwaukee tools, these batteries are pretty close to the real thing. I charge them on my Milwaukee charger and they seem to last as long as my Milwaukee batteries do. I charge and discharge them around 10 times a week. You really cannot beat the value.

batteries were shipped and had to be charged. One battery would not take a full charge

Neither battery charges now after one use each. Not worth the potential savings if the batters are in fact, not rechargeable.

I've tried this brand for other power tool batteries and they worked great. I've had these for my Milwaukee tools for a couple of months now and they hold a charge, provide great power, and are a great value. I'd recommend these in a heartbeat.

I use this battery very little probably i charged no more than 15 - 20 times in a year and today it stopped charging for useWhat is the warranty on it

These go strong for a long time..I was shocked how long these last..Great product..thank you

I was actually looking for milwaukee batteries saw these for much cheaper tried them out and so far they work great longer battery life than Milwaukee on the same tools and all of them are brand new I have no problem using these batteries very durable