I own a 1980 Camaro ss. I bought it a long time ago when I didn’t bother on mileage. Now the car is in the garage mostly. I rev up thrice a week, to sustain it. I don’t want to sell it as it was my first car and I love it and I drive it during the holiday trips. I rebuild the engine to improve the efficiency and performance. I had issues with the battery because of not driving. But, now I replaced the battery. I heard that something called power batt can improve the life of AGM batteries. It's said that the battery life can be extended to 4 years if it is used. So, I was thinking about using it on my chevy. Has anyone tried it on their car batteries? Is it an expense worth spending? I need your suggestions. Thanks.