Optima Batteries 9014-045 12 Volt Yellow Top Deep Cycle Battery D34/78 for 87-11 Jeep Wrangler YJ, TJ, JK & 76-86 CJ | Quadratec
The OPTIMA SPIRALCELL TECHNOLOGY | Randy Walker
Why don't auto manufacturers sell cars using more modern primary batteries? Using something like an Optima Spiral cell battery instead of the old school lead acid battery. - Quora
Optima Red RTS 3.7 44AH Battery
OPTIMA YELLOW TOP D34 DEEP CYCLE QUALITY AGM BATTERY 750CCA/ RC120 / 870CA/ 55AH | eBay
Optima Battery Types: Red Top vs Yellow Top vs Blue Top - AutoZone