Well it's been almost two years and this mouse has been great. I ordered a new one today since the wheel on my old one stopped working. I don't think it was the mouse's problem I think my cat knockin it to the ground might have killed it. All I have to say it's a good mouse..
Update 7/28/21 Ok I play a lot of online games that require constant mouse use and the batteries last forever.. it's been 6 months and has the original Amazon batteries in it, HEAVY USE on them too.
I read some of the bad reviews, I pretty much have not had any of these issues, and I've own two.. They must have just gotten a bad batch...but it's Amazon just return it =P
Update 11/11/2021 Ok just a little update... this thing sips battery power, original batteries and still going strong 2/3 bars on the meter. this is with heavy use, not sure how they do it!