Well...maybe it is? 4 year old battery finally gave up the goat. I replaced it. Everything hunky dory until someone leaves the electric clutch engaged and the key on (Kids). Kilt my new battery deader than dead. I charged it up and have had no issues til I mowed for 3 hours. Now it's too weak to start. Motor running disconnected the positive battery lead and motor quit. This means it's not charging.... right?