TENMOER M-18 18V 9.0Ah Replacement Battery Compatible with Milwaukee M18 18volt Battery 48-11-1890 Cordless Tools

Let’s get one thing clear right off the bat, I haven’t seen a single aftermarket batter that lives up to the Milwaukee brand stuff. But they are also half the price, so what do you expect? Make sure you go into the purchase of any off brand battery knowing you are not getting the full Milwaukee experience.That being said, this 9 Ah battery is the same cost as a 5 Ah brand name battery. I have tested a Milwaukee brand 5 Ah and you get around 4.75 Ah in real life, pretty close. This battery got me just over 8 Ah. Does it live up to the spec? Not at all. But bang for the buck, this is a great deal.Obviously, the extra bulk might not work for you application. I use these mostly in kids dirt bikes and quads that I have converted to m18 batteries. Our first real world test showed this only drawing 1/2 battery for three hours of use! That is pretty much unheard of.These batteries pack 15 18650 cells so yes, it’s bulky and heavy, but it also holds a ton of charge. They seem to use the same lime green Sahsung 18650 cells as the 6.0 Ah version of this product that as labeled as 3000 mAh but fall a little short. Like I said, that is expected so overall this seems to be a decent product.I’m summary, if money is not an issue, but Milwaukee brand stuff. For the rest of us, the Waitley/tenmore stuff is a very good value. Also the year long warranty is great! I have had to use it on a 5.0 Ah battery and it worked out great!

When they were working they provided lots of power. I bought them last November, this week they both have failed, will not recharge . the seller has replaced both of them. happy with the seller service

First off I have had three of these batteries in the 9.0 version.really wanted to like them.got the first one for Christmas and it worked for maybe 15 seconds on my 9 inch grinder then nothing, sent it back under warranty . New battery came I thought maybe just too much draw on the grinder (came with 12.0bat) used it on the 1/2 high torque impact gun worked good for two weeks. All’s well I thought and ordered another. Then while fighting a stubborn bolt again on the impact (comes with 5.0 bat) just stopped. This time I disassembled the battery and found the solder joints to the battery cell from the connectors were melted resoldered and put it back to service. These batteries work good in my spotlight/searchlight last a long time on the radio,but anything you are working drawing amps and you will be disappointed. I’m writing this review today because my hired high schooler used it on the 1/2 drill and it gave up.Seller contacted me based solely on my review. The seller did everything possible to make my purchase unregretable they sent me the updated battery to test, and so far it has been great .we have worked it on everything I have that draws higher amps trying to melt it down but it keeps on performing well. I am looking forward to getting the second replacement battery ,and being able to have a stand up seller as my go to for batteries. Thank you TenmoerUpdate September 18Both replacement batteries have now failed seller is great product is not.

Lighter than the 12ah

These batteries are great! They work just as good the Milwaukee battery I bought. The one Milwaukee 9.0ah battery cost more than both of these. I had read in a review that they don't work on the rapid charger but the do work on my m12 m18 rapid charger. You just have to wiggle them a little and push it it. Only time will tell how durable they are but in extremely pleased with my purchase.

Definitely worth buying! I got the milwaukee 1/2 impact electric and it last a long time and is strong! Way better than spending 2 or 300 bucks for the milwaukee one just to get the same result.

I bought this to run a Garmin 93sv UHD and Panoptix on my boat. I had the units powered for 5 hours the first time out. The battery started out with 20.4 volts and ended up at 17.0 volts. The battery status lights showed 2 of 4 lights when I was done. I'm guessing I could have kept the units running for a couple more hours, but I'm happy with the 5 hours I got from a $69 battery.

These are gigantic batteries and a great value. I used it for a small Paw Patrol ride-on toy for my kid. He rode it on one original charge down to one-LED before I charged it. Put it in charger and the lights flash and it doesn't charge. Not sure if there is a warranty?? I'll just stick with the half-dozen Milwaukee batteries I have.