01-03-2004, 01:45 PM
I have used 14.4V batteries in the past, and I wasn't all that impressed with their performance. Of course I have a high powered sonar unit, so that really sucked up the juice. They would only last about 2.5-3.5 hrs, and even less in the cold. I would defenitely spend the money on the bigger units. I have seen smaller 4Ah gel cell batteries on the web. They are about the same price as the 7.5s, but they are almost 1/2 the size. They would probably be good for around 6-10 hrs of fishing, depending on the type of sonar you are running.
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