I bought my lawn mower towards the end of the summer last year. After using it for the first time this season, yesterday, I am not able to remove the battery from the mower. I am able to push the button labeled "push click" but it doesn't click nor does it dislodge the battery. I searched the forum and found a suggestion to push the battery in while pushing the button to dislodge it - tried it but it doesn't work. I love my mower and I'd like to continue using it. HELP!