Which ones are you looking at? Most LiFePO4 chemistry ones don't have the current capability mainly because of the internal BMS. Was reading up on Li-Ion cells this weekend trying to decide if its worth it. The Autocraft Deep Cycle flooded marine battery I bought just last spring is already kaput - or at least seems to be. Good luck, and please post what you find out or what brand of battery you ultimately decide upon.įollowing. I've looked at Optima, Odyssey, Lifeline, and others. So, if you can find only a "dual purpose" AGM battery, don't worry, it's really a deep cycle battery with a "it can start your motor too" label slapped on it.įinally as far as brands, it's anybody's guess and preference. The reason why starter batteries are offered is because they are less expensive, so it appeals to the consumer. The difference is that there is more lead in the deep cycle battery so it can handle both starting and steady current draws. You NEVER want to use a starter for deep cycle applications, but any deep cycle battery can be used as a starter. My local battery guy, who specializes in aircraft and marine batteries, explained it to me this way. You'll find "starter" AGMs and "dual purpose" AGMs. I've researched many brands and what I've discovered is that there are very few "stand alone" deep cycle AGM batteries. With AGMs I should not have any more of this nonsense-and they will be on a DualPro charger year round to assure proper care and charging. To do any kind of maintenance one has to remove the batteries, which are heavy and take time. Cobalt located my batteries in an inaccessible place and the batteries are a PITA to service, i.e., check for gassing, water, connections. They are more expensive, but they are an "install and forget" application as they require no maintenance, charge faster, and anecdotally they can last longer than flooded batteries. My batteries are the factory installed Deka Group 24 flooded-going on 6 years now.Īs to your question about AGM batteries, my plan is go with AGM. So I will wait until next spring to replace. My house (deep cycle) battery is toast, but I was able to squeeze another summer out of the starter battery. I've been researching batteries since this spring and planned to buy new batteries for this summer.
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