Optima is the only way to fly, IMO! OEM batteries took a dump on me after 3 years. Put in a set of Red Tops. They worked great in the Ram for 6 full years. One of them started getting a little weak late last year, so I replaced them with a set of Yellow Tops. I put one of the used Red Tops in my daily driver gasser and it has not missed a beat since. I use them in everything I own, and have never had any Optima fail to last at least 6 years in regular service.
I use my truck commercially ( call that running all day every day) and find that my batteries last about 1-1/2 yrs seems heat and vibration are enemies of batteries like many other componants.![]()
5 years on an OEM battery? Wowzers. 7 years on an OEM battery? Double wowzers. Here, the heat destroys batteries. I got 18 months on the OEM batteries. Best I can do on normal lead-acid batteries is 2 years. I get five years from a set of Optimas, which is great. I've been told I can squeeze a year or two more if I rotate the batteries every year.
Actually, I used to live in a milder climate, not this furnace. I got many years out of a battery. Oo.