u/PNWDrifter

Brand new 40v 21" mower. I assembled several weeks ago. Battery on 4; blades at highest setting (grass was tall). It wouldn't start. I check for mistakes and everything seems correct but no start. I give up . Try again the next day: nope. Same three days later. Then another two days later (hadn't touched a thing) and it starts right up and I get short grass-yay! Today it is two weeks later. Battery on 3. Won't start. I pull out and put back in both the battery and safety. Nothing. I clean around the blades, try again - nothing. l give up. I try again in an hour. Nothing. Try again in an hour (having done nothing new) and it starts right up. Midway through mowing, I stop to move some rocks. And now it won't start again. Whaaaaaat is going on?