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GlueGuy View Drop Down
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    Posted: 28 Jul 2017 at 8:21pm
Originally posted by twodues

Current drain is 7amps at the battery. No current measured at each individual 12v circuit. Bad controller?
7 amps?!?! Wow. I'm assuming that this is with everything turned off? I would start disconnecting circuits and/or devices until you find what's broken. 
bp
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twodues View Drop Down
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Posts: 20 		Direct Link To This Post Posted: 28 Jul 2017 at 8:17pm
Current drain is 7amps at the battery. No current measured at each individual 12v circuit. Bad controller?
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mcarter View Drop Down
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Posts: 3419 		Direct Link To This Post Posted: 22 Jul 2017 at 5:47pm
+1 , I have a Craftsman DC clamp om ammeter and multimeter. Works fine.
Mike Carter
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CharlieM View Drop Down
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Posts: 1797 		Direct Link To This Post Posted: 22 Jul 2017 at 4:23pm
DC clamp on ammeters are very available, just not for bargain basement prices. Here's one I like: http://www.sears.com/craftsman-professional-true-rms-ac-dc-clamp-ammeter/p-03473756000P?plpSellerId=Sears&prdNo=1&blockNo=1&blockType=G1#
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GlueGuy View Drop Down
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Posts: 2709 		Direct Link To This Post Posted: 22 Jul 2017 at 12:07pm
Originally posted by Tars Tarkas

There definitely are DC clamp amp meters.  If you want DC you have to look for it, but a quick look at Amazon shows several.

TT
Yes, there are, but a standard one won't do DC unless it is built with a hall-effect sensor. Those are not typical, but they do exist.
bp
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Tars Tarkas View Drop Down
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Posts: 1454 		Direct Link To This Post Posted: 22 Jul 2017 at 11:54am
There definitely are DC clamp amp meters.  If you want DC you have to look for it, but a quick look at Amazon shows several.

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GlueGuy View Drop Down
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Posts: 2709 		Direct Link To This Post Posted: 22 Jul 2017 at 9:54am
Originally posted by CharlieM

The best way to find out what's happening is with a clamp on ammeter. If the residual drain is around 0.15A it's the CO detector in is not responsible for the battery discharge. If it's significantly more you just have to keep looking until you isolate the culprit. If you buy an ammeter be sure it measures DC Amps. 
IIRC, a clamp on ammeter is only for AC circuits. They will not work on DC circuits unless they are based on hall effect sensors. The simplest way is to open the circuit and insert an ammeter.
bp
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CharlieM View Drop Down
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Posts: 1797 		Direct Link To This Post Posted: 21 Jul 2017 at 7:13pm
The best way to find out what's happening is with a clamp on ammeter. If the residual drain is around 0.15A it's the CO detector in is not responsible for the battery discharge. If it's significantly more you just have to keep looking until you isolate the culprit. If you buy an ammeter be sure it measures DC Amps. 
Charlie
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john in idaho View Drop Down
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Posts: 613 		Direct Link To This Post Posted: 21 Jul 2017 at 6:45pm
Water heater is off - the switch inside the outside panel?
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GlueGuy View Drop Down
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Posts: 2709 		Direct Link To This Post Posted: 21 Jul 2017 at 11:05am
Originally posted by twodues

The battery integrity has been confirmed and is being charged with deep cycle charging removed from pod. Unfortunately, the process of elimination (by repeated sequential removal of each 12v fuse and install fully charged battery) did not reveal a specific circuit being the problem.
Do you know what the current drain is? 0.5 amp, 1 amp, 2 amp, etc.?
bp
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