The batteries work just fine. I found out afterwards that if you have worx tools, that you need to use worx power share batteries. If they are not power share batteries , they will not work as well. I had to learn this the hard way. The power share batteries work and last much longer. Of course, they are also much more expensive. As they say, live and learn ! The higher the Amp hours , the longer they will last. You also have to consider expense again. 8.0 ah batteries can be very expensive. I now have a lot more money tied up in batteries than I do for the complete purchase of the snow blower.