Battery question - Pensacola Fishing Forum

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Old 10-03-2007, 05:30 PM   #1
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Default Battery question

While im gigging with the generator running. Can I hook up a battery charger to the generator and charge my 12 volt battery that I use for my trolling motor while this battery is in use?????? I guess what im asking is this safe for the battery to be charging and discharging at the same time??? Does anyone do this??? ><(((*>
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Old 10-03-2007, 10:17 PM   #2
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Default RE: Battery question

Your car is doing it everyday.



Now, it depends on how close to the max normal running capasity you are running your generator and how much draw the charging of the battery would have on it.



IE: You don't want the generator to be over the max "Operating" level.



Notice I said "Operating" level.



EXAMPLE: A 2000watt generator has aprox 1650watt "Operating" level. run it over that and it will not last long.



All generators are this way. So if you buy a 5500watt generator it will not put that out on a steady rate.



So the answer to your question needs some math work done.
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Old 10-04-2007, 01:53 PM   #3
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Default RE: Battery question

I'm not an expert, but it does not sound like a good practice. Might be okay to be charging a spare battery, but not the one that is currently running the trolling motor. Doesn't seem like it would be good for the battery?
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Old 10-04-2007, 02:00 PM   #4
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Default RE: Battery question

I don't see any problems with your solution. Most battery chargers today have automatic settings that would alleviate any concerns with overcharging the battery. I'd experiment with the output settings, selecting the lowest charge rate that will keep the battery charged during trolling motor operation.
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Old 10-04-2007, 02:17 PM   #5
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Default RE: Battery question

Gonnamissher I don't believe he will be pluging in a battery charger to the generator? A lot of generators are already set up to charge a 12V battery. There is a special plug and pigtail that plugs in the generator.
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Old 10-04-2007, 02:59 PM   #6
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Default RE: Battery question

He said "hook up a battery charger to the generator" in his original post.
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Old 10-05-2007, 05:53 AM   #7
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Default RE: Battery question

I stand corrected. I read one thing and thought something else.:doh
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Old 10-05-2007, 08:02 AM   #8
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Default RE: Battery question

I know a guy who used to run half of his lights off the generator and the other half off of a 12 volt to 120 converter. He had a battery charger plugged into his generator to try and keep the batteries from dischargingtoo fast. The converter was a 2000 watt that he ran 3 500 watt lights off of. The other 3 lights, he ran off his generator. He was trying to use a 2000 watt generator to do this.This was not a very safe method, because he kept burning the wires off of the output of his converter! Long story short, yes you can charge and discharge your batteries at the same time.
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Old 10-05-2007, 08:49 AM   #9
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Default RE: Battery question

MR Doesn't that Honda have a 12v charger outlet on it, if it does that's whatI would use( on less thing in the boat)

I've been using my Gen. charger for years to charge my TM battery. Now I don't leave it hooked up all the time however if I'm using my TM a lot and it starts to show signs that it's getting weak I hook it up and let charge.
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Old 10-05-2007, 10:20 AM   #10
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Default RE: Battery question

Alot of times we will keep the boat motor running to charge the batteries. It doesent burn that much fuel.If its a 4 stroke then it wont be any louder than the generator.
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