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Wet-Cell Battery Test
Two batteries from Deka and one from Interstate lead the pack in our test of eight deep-cycle batteries.

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Top row (l. to r.): the Deka DC31DT, the Rolls 27 112 XJ, the Deka DC27 and the West Marine Sea Volt. Bottom row: the Trojan 27THM, the Douglas 27 DCM, the U.S. Battery 27TMX and the Interstate SRM 27B.
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Our last battery tests were reported in our August 1999 issue, so were due for another look at the batteries available in the boating world. This time we focused exclusively on flooded-cell, deep-cycle marine batteries in the popular Group 27 case size. There was also a Group 31 battery from Deka and from West Marine. (The Group 31 is physically a bit larger, so be sure it will fit your battery compartment.) We will do a separate test of gel cell/AGM batteries later this year.
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