Originally Posted By steve70
My yellow cap from Antique Auto will be 8 years old in August and my red cap will be 7 in October. I've never had any issues. Just follow the instructions and NEVER use a battery tender.



I got almost 12 years out of my red cap group 27 (Turbostart) with zero issues during that time... never used/needed a battery tender, would go 3-4 months during the winter not used, always started the car with no hesitation