i have a 23 hp exmark lazer z ct. It works great when it works. I have bought a new battery as i thought my battery was bad due to it not starting this season. The mower worked great after i changed the battery but when i went to use it the next time the mower would not start so i put the charger on it and it started. So i now have to put a charger on the mower each time i need to use it as the battery is not holding a charge. I'm not sure what to check or where to check as I'm not very tech savvy unless i know what to check when it comes to mowers. I can do the basic but i can fix things if i know what the problem is and where to look or what to look for. Need help