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Old 08-05-2019, 07:23 AM   #1
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GFCI tripping

Hi all. I am having a problem. We store our RV (2015 Excursion 35b) indoors and plug in using an adapter (120v, 15a) to power the battery charger. The storage unit receptacle has a GFCI installed and when we plug in all is well for 10-15 min, then the GFCI trips. It is a pain in the butt as you never know in what condition we will find our batteries ___

Any idea of what could be causing this.. The rig is stock except for a hardwired surge protector

Mark
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Old 08-05-2019, 07:41 AM   #2
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Quote:
Originally Posted by nyparrothead View Post
Hi all. I am having a problem. We store our RV (2015 Excursion 35b) indoors and plug in using an adapter (120v, 15a) to power the battery charger. The storage unit receptacle has a GFCI installed and when we plug in all is well for 10-15 min, then the GFCI trips. It is a pain in the butt as you never know in what condition we will find our batteries ___

Any idea of what could be causing this.. The rig is stock except for a hardwired surge protector

Mark
I'm gonna start a war here but I have done side by side test. Some brands of GFI's don't play nice when 2 are plugged together. Trip or turn off your GFI circuit breaker or outlets. breaker is easier if you have multiple outlets.

You are probably plugged into a GFI circuit. 2 gfi's in series sometimes don't play nice.

I'm assuming your talking about a portable charger? You will need to plug it into a non GFI controlled outlet. all your storage outlets are gfi. Or skip the coach wiring and plug the charger into the storage outlet.
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Old 08-05-2019, 07:44 AM   #3
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I have had weak GFCI outlets that will do that. I replaced the outlet with a new GFCI and problem was solved.
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Old 08-05-2019, 08:04 AM   #4
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Since it not your GFCI to change, if its bad, disconnect your 2 negetive battery cables and leave the plug out.

Your batteries will last for months disconnected. If the don't, they were no good anyway.
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Old 08-05-2019, 10:22 AM   #5
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You should never leave lead acids without a float charger on them.

Can you change the outlet?
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Old 08-05-2019, 11:02 AM   #6
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You should never leave lead acids without a float charger on them.

Can you change the outlet?
Why would that be ??

Millions of lead acid batteries are stored without a float charge running thru them.

Just look in a battery warehouse, boat storage yard, car dealer, RV dealer or any battery retailer.
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Old 08-05-2019, 11:09 AM   #7
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Because lead acids lose 5% of their charge every month and too many discharges below 40% destroy the batteries. Given how expensive our house batteries are and how cheap solar or plug in battery maintainers are, you should never leave them for any period not on a charger. A few weeks, sure. Months, no!
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Old 08-05-2019, 11:22 AM   #8
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I disconnect all of my batteries every Winter when I store my Coach and collector cars. I make sure the batteries have a full charge then pull the cables. I have never had an issue doing this and I leave them for up to six months. Many times when I put a charge on them after sitting the charger says they are at 95% before recharging

Back to the GFCI issue....I have heard others have this issue in the past and it was s known that many RVs donít play nice with GFCI protected circuits. I canít recall why that it is but I know many have had to remove the GFI or plug into a non-protected circuit
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Old 08-05-2019, 01:29 PM   #9
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Quote:
Originally Posted by nyparrothead View Post
Hi all. I am having a problem. We store our RV (2015 Excursion 35b) indoors and plug in using an adapter (120v, 15a) to power the battery charger. The storage unit receptacle has a GFCI installed and when we plug in all is well for 10-15 min, then the GFCI trips. It is a pain in the butt as you never know in what condition we will find our batteries ___



Any idea of what could be causing this.. The rig is stock except for a hardwired surge protector



Mark


Maybe bulk charging pulling to many amps?
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Old 08-05-2019, 01:46 PM   #10
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Because lead acids lose 5% of their charge every month and too many discharges below 40% destroy the batteries. Given how expensive our house batteries are and how cheap solar or plug in battery maintainers are, you should never leave them for any period not on a charger. A few weeks, sure. Months, no!
5% a month is 15% over a 3 month period. That leaves you with 85% charger.

A lead acid battery will have at least 300 to 500 hundred deep cycles ( Down to 10% ) in them.

15% is one days use, over the 3 month storage period, a drop in the bucket.
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Old 08-05-2019, 01:50 PM   #11
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Maybe bulk charging pulling to many amps?
GFCI protectors are not amp sensitive, that's the job of the circuit breaker.

GFCI devices monitor for unequal current traveling thru the hot and neutral wire. If they don't balance, that current is going somewhere else, possably thru your body.

That's what they are designed to protect.
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