blackdog1101 Posted November 23, 2008 Share Posted November 23, 2008 A question for you guys who understand electronics better than me. My Marcum VX-1 has a 12 volt 7 amp battery. Yesterday I bought a battery at Fleet Farm for the rope lights in my Otter. The battery I bought is 12 volt 8 amp. Would anything bad happen to my Marcum if I put the 8 amp battery on it by mistake? Quote Link to comment Share on other sites More sharing options...
morpho Posted November 23, 2008 Share Posted November 23, 2008 it would take longer to drain it as its a higher capacity battery Quote Link to comment Share on other sites More sharing options...
timjones Posted November 23, 2008 Share Posted November 23, 2008 Nope. Would work just fine. The Marcum would actually run a little longer on the 8 Amp battery. Quote Link to comment Share on other sites More sharing options...
blackdog1101 Posted November 23, 2008 Author Share Posted November 23, 2008 OK thanks that's great guys. I just didn't want to hurt the flasher, and thought maybe I better mark the one battery more clearly. Since it doens't matter, I won't worry about it. Thanks! Quote Link to comment Share on other sites More sharing options...
aanderud Posted November 23, 2008 Share Posted November 23, 2008 Yeah, the rating they have is in "amp hours". Or sometimes "milli-amp hours". A 7 amp-hour battery will last approximately an hour with a 7 amp load, or 7 hours with a 1 amp load. The 8 amp hour battery will last approximately 8 hours with a 1 amp load. The numbers are all fudge factor numbers, as they were probably taken in a lab somewhere with a very specific load at a very specific temperature and other controlled variables. But even without getting into absolute numbers as far as hours go, you can usually be relatively sure that the 8 amp-hour battery will last longer than the 7 amp-hour battery.In fact, as long as you're providing 12 volts from a supply that can handle the amperage draw you're going to put on it, you are OK. You could run your flasher and lights off a normal huge trolling motor battery, which run usually in the 90 to 120 amp-hour range, or even a 12 volt RV battery, which run even bigger. Quote Link to comment Share on other sites More sharing options...
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