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Old Mar 20, 2005 | 07:52 PM
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Exclamation Battery Charger Question

I am looking at getting either a 1.5 Amp Charger to mount under the hood, or a 6/10 amp charger to mount in the trunk.

I would like to permanently connect the battery clips to the battery, and just be able to plug in/unplug the 120V power cord to whichever charger. Is this possible?

I always heard it was an electrical no-no to leave the battery clips attached when the charger is plugged in. Any help would be appreciated. I run emergency calls, so it mould be nice to be able to plug into 120VAC to charge the battery in between calls.

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Old Mar 21, 2005 | 04:19 AM
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I never tried it on a truck, but I do it on my cycle. I use a battery tender, with wires always connected to the battery. It has a plug to match the one from the charger. I pull the charger off when i want to ride. I would think it would work if you just unplug the charger and leave it under the hood. But don't forget to unplug it if you go on a call. I plug in my diesel truck at night. I use a long cord and loop it over the drivers mirror to remind me it's there. Make sure you get a charger that will tell when the charge is full and shut off not just keep charging.
 
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Old Mar 21, 2005 | 07:59 AM
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why ? is the bat. going dead?
 
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Old Mar 21, 2005 | 11:17 AM
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Well, can you mount the charger under the hood(waterproof) and leave the 120v plug hanging out of the hood? Will this short out the battery if it rains? Or is this ok? The battalion chief SUVs here have the cord hanging out, but i dunno if thats ok to do or not.
 
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Old Mar 22, 2005 | 08:33 AM
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It won't hurt anything to leave the cord hanging out, or hooked up.
 
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Old Mar 22, 2005 | 12:54 PM
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Originally Posted by mark a.
why ? is the bat. going dead?
No, the battery isnt going dead, but I have strobe lights all over my Expedition, so it puts a load on the battery quite frequently.

So, I figured that letting the battery get a 1.5 amp trickle charge couldnt hurt, plus it will help prevent the battery from sulfating.

I will be mounting the charger this afternoon.
 
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Old Mar 22, 2005 | 09:55 PM
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DO NOT USE A CONSTANT CURRENT TRICKLE CHARGER. It will overcharge your battery. You need something like the Battery Tender charger. Several mfr make similar types that are intended to be connected to the battery continously. That type will back off the charging current after the battery reaches max charge and float the battery at the correct voltage.
 
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