I NEVER charge the battery in the car and always pull the battery out for winter storage. The stock battery died after 2 years so I run an Autolite battery. I trickle charge it (NEVER more than 2 amps) off and on and then put it in right in full charged before I am ready to start it. Never have had a guage issue (except once when I let it drain a little too much from not driving it) but once a full charged battery is in, it was always fine. This time; my luck ran out.