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Old 12-18-2011, 08:41 PM   #1
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battery leaking

I checked my battery the other day and I could c that it was leakin and giving me problems. So I replaced it amd the new battery is doing it also. What would make the battery boil over. It seems like it's charging fine
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Old 12-18-2011, 08:45 PM   #2
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It is probably gonna be a short.they can make your battery get real hot.did you do anything electrical lately or perhaps damage a wire doing something else?
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Old 12-18-2011, 09:03 PM   #3
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All I've done is hook up my fan to a heavy duty toggle switch. And I came right from the battery with the hot. But when I hook up my cables only a little spark comes when I make the final connection on the battery. I know that something is pulling juice when it sparks. But isn't just a little spark normal
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Old 12-18-2011, 09:09 PM   #4
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Quote:
Originally Posted by Robbie94gt
All I've done is hook up my fan to a heavy duty toggle switch. And I came right from the battery with the hot. But when I hook up my cables only a little spark comes when I make the final connection on the battery. I know that something is pulling juice when it sparks. But isn't just a little spark normal
You should put a fusible link in the hot and make sure you have a good clean ground and the proper gauge wire. Also you could have an issue where ever the wire is routes to get it in the car that got through the wires insulation. Be careful with this problem as I'd hate for you to burn or damage your car! Also check the fittings where they are attached to the wiring! Good luck!!
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Old 12-18-2011, 09:13 PM   #5
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You should put a fusible link in the hot and make sure you have a good clean ground and the proper gauge wire. Also you could have an issue where ever the wire is routes to get it in the car that got through the wires insulation. Be careful with this problem as I'd hate for you to burn or damage your car! Also check the fittings where they are attached to the wiring! Good luck!!
+1.also u should always use a relay when installing a new fan.here is what I used.it has a relay and adjustable fan controller to kick the fan on when you want it so it isn't running constant.it was 30$ at summit racing.
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Old 12-18-2011, 09:22 PM   #6
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Yeah I have a fusible link in it. I'm a electrician but I know car wiring is a whole new game. But I have a 10 awg running it. But I guess I'll just keep a close eye on it. I haven't checked the voltage or nothing yet. I probley disconnect it just to c if it quits and then go there. But yeah I know the dangers. I have a friend that bought a 95 chevy 4x4 and hooked up a circuit without a fuse on it. Which is a very dumb idea but it shorted out amd caught on fire amd the truck burnt to the ground. He didn't even have it a week.

---------- Post added at 12:22 AM ---------- Previous post was at 12:20 AM ----------

Thanks for the ideas. I do need to put a relay on it though I believe I have it on a 20 or 25 amp toggle switch but I've noticed it gets a little warm
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Old 12-18-2011, 09:23 PM   #7
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Man that sucks! Good to know you know electricity! Cars are done slightly different but the theories are the same!
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Old 12-18-2011, 09:27 PM   #8
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Eeek! That's a good idea to try unplugging it.I would think something may be wrong if a 20-25 amp switch is getting hot.you shouldn't be drawing more than 20 amp unless maybe ur running 2 beastly fans.

Good luck
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Old 12-18-2011, 09:28 PM   #9
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Yeah compared to 120/240 volt house electric ,car wiring gets me stumped sometimes. Knowing what size wire for the correct amperage. Do u know if there is any charts on here anywhere showing wiresize for the amperage to use?
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Old 12-18-2011, 09:31 PM   #10
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Yeah compared to 120/240 volt house electric ,car wiring gets me stumped sometimes. Knowing what size wire for the correct amperage. Do u know if there is any charts on here anywhere showing wiresize for the amperage to use?
I'm not sure but I'm betting 10 is big enough.is there any wires coming off the fan itself that u can match them to?
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Old 12-18-2011, 09:40 PM   #11
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Yeah the coating is just a little thicker but it seems like 10 also. I guess I'll put a relay on it. That should reduce the draw from the switch shouldn't it
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Old 12-18-2011, 09:53 PM   #12
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Yeah the coating is just a little thicker but it seems like 10 also. I guess I'll put a relay on it. That should reduce the draw from the switch shouldn't it
I think it will.plus u will benefit from it not running constantly if u get the one I showed u.it will also increase the life of the fan because it is not good for it also.I would get that no matter what but still try unhooking it so u know if u need to keep looking for the problem.
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Old 12-18-2011, 10:31 PM   #13
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Re: battery leaking

Sounds like your alternator is overcharging the battery. Likely the voltage regulator is bad or stuck.
The alternator should kick up to 14-14.5 volts right after starting then gradually drop off to 12.5 - 13 volts. If it stays at 14 volts or higher then it is overcharging.

Using a switch wired straight through to run an electric fan will never work they will get hot and burn up. You have to run the electric fan through a relay and it needs to be oversized to carry the load. A 60-70 amp relay works best.
Note: The start up load on the electric fans is way higher, sometimes double or more than the running amperage. THAT is what kills the switches and why you need to oversize the relays.

A #10 gauge wire will carry 30 amps maximum IF, it is good fine stranded DC voltage rated wire. The more strands there are in a wire the better for DC voltage. The current is carried on the outside of the strands and the more of them there are the better they will carry the load.
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Old 12-19-2011, 06:02 AM   #14
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Thansk man. U always have some useful information
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