Jeep Jk Yellow Top Optima. E., Genesis, etc.) The Yellow Top is everywhere in Canada and USA and very popular among week-end wheelers. People seem to have better luck with the red tops though.
Yellow tops are well worth the price in service free life time double or more your origional battery. They also recover deeply discharged batteries and extend the life of all lead-acid batteries. My friend had a yellow top Optima in her Jeep Wrangler and the negative terminal separated from the battery leaving her stranded.
Im also running a yellow top in my Jk and i know nick is too.
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The yellow tops in the truck and boat lasted years until I sold them. Im installing a dual battery tray and will use this one to power all my stuff and the YELLOW one for my Jeep only. The first Jeep the yellow top was Awesome but when I installed one in my next Jeep, Johnson Controls had acquired them and after three yellow tops in one year, I never bought another Optima.