Review on Energup 40V Lithium Replacement Battery Compatible With Greenworks G-MAX 29462, 29252, 20202, 22262, 25312, 25322, 20642, 22272, 27062, And 21242 - Not Suitable For Gen 1 Models by Tom Schuster

It wasn't 100% clear that this would work for my mower MO40L01 but the description said it worked with the charger that came with it so I ordered. The battery is a little thicker than the original but it fits and works fine. I've only used once so longevity is unknown but the battery lasted for the whole lawn (maybe 20 minutes) and was only 50% discharged. I have been unable to finish the lawn lately using both the original batteries which have lost most of their charging capacity.