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The EverStart Platinum is a Group 27M AGM marine battery rated at 930 marine cranking amps and 175 minutes of reserve capacity at 12 volts. Its sealed absorbent glass mat design is maintenance-free and non-spillable, so it can be mounted in tight compartments and won't leak acid if tipped. It suits boat and RV owners running trolling motors, fish finders, radios and other onboard electronics. Against flooded deep-cycle batteries it costs more and is heavier, but it holds charge better and needs no water checks; premium AGM marine brands generally carry longer warranties.
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Ratings average 4.3 out of 5 across 94 reviews, a solid but not stellar record. Buyers generally report dependable starting and deep-cycle performance, while a minority report problems.
The EverStart Platinum AGM Marine Deep Cycle Battery is a Group 27M, 12V battery built with an Absorbent Glass Mat (AGM) design. It is made for marine deep-cycle use in RV and boat applications.
It can run onboard equipment such as a trolling motor, radio, GPS and fish finder. The AGM construction is maintenance-free and non-spillable.
