The Optima Batteries 8014 045 Yellow Top Dual Purpose Battery blasts most of the competition away with an impressive 750 cold cranking power and a tolerance to salt water making it great for boats and other marine vessels. It\u2019s on the expensive side, but that\u2019s to be expected with a battery with as many features as this. Check our best car battery list for more great options!\r\n\r\nWhy We Like It - Optima Batteries 8014 045 YellowTop Purpose\r\nThe Optima Batteries 8014 045 YellowTop Purpose is an AGM Battery, so you\u2019ll know its maintenance free, and can act as both a starting battery and a deep cycle battery depending on how you want to use it. It charges faster than most other automotive batteries so you can get back on the road, or back on the water, in less time.\r\n\r\nPerformance\r\nThe Battery Optima is part of the AGM batteries family which means it will have a longer life when compared to lead batteries. The Optima Battery also features outstanding 750 cold cranking amps for optimal starting power. And if you live in an area of the United States that gets below freezing in winter, this will definitely help you out. Check out the Optima Batteries 8020 164 35 Starting for similar starting power. The YellowTop also has an impressive 120 reserve capacity which means it will deliver consistent power for longer.\r\nDesign\r\nThe Optima Battery is designed to operate both as a starting and as a deep cycle battery so you would have options about how you would like to use it. For example, it can be used on boats and other marine vehicles due to its tolerance to salt water. The battery is maintenance free, being an AGM battery, and can resist spillage, corrosion, and dampening. It\u2019s group size is 10\u201dx6.88\u201d7.8\u201d, so it\u2019s a little on the heavy and large side. But you can remedy this by checking out the ODYSSEY PC680 Odyssey Battery.\r\nValue\r\nThe Optima Yellow Battery allows for faster recharging when compared to other automotive batteries. The battery retails for $280.00 over on Amazon which, admittedly, is a little on the expensive side. But at least it qualifies you for free shipping. Check out the ACDelco ACDB24R Advantage Automotive Battery for something a little more affordable. The Optima YellowTop Battery can also power multiple different items at the same time, something most other battery brands, at the very least, never advertise.\r\nOptima Batteries 8014 045 YellowTop Purpose Wrap Up\r\nThe Optima Batteries 8015 045 YellowTop Purpose Battery packs a lot of features into, admittedly, a rather large and heavy battery. But with the ability to power multiple devices at once, great starting power, and a tolerance to salt water, is the size and weight going to be that high on your features that are going to be a deal-breaker?