I have a 2006 Acura TL with 130K miles that I no longer drive on a daily basis, but am keeping for practical reasons, since my newer car is small sports car. The Acura is not in a garage, but rather exposed to the Texas 95-degree heat. I always drive it at least once a week for errands. Within a month of its semi-retirement, its battery went dead. Repair shop said the charging system was fine and replaced the battery. However within six weeks of replacing the battery, the new one went dead. I assume they are going to scold me about not driving the car enough.
When they replace battery, should I just keep the new one on a steady, constant 2 amp trickle charge? Honestly, I would probably only drive it once a month (bad weather days, hauling big stuff) if I weren’t trying to keep its battery alive. But if a handful of errands once a week isn’t going to get it done, then maybe I should just use it in case of emergencies. But will constant trickle charging be good for the battery?