My Red Top died last year, 3 months out of warranty and I was not going to buy another one. Then my buddy gave me his 5 year old Red Top which I've used until last May. I left it sitting in my 150? degree garage in AZ, forgetting to put it on a battery tender over the summer.
When I get back at the end of next month and it starts the Cobra after sitting 6 months (which I really doubt), then I will definitely buy another Red Top.
Ralph