P1000 aux battery HELP!

[Hondasxs]

That test says the isolator is working.
IDK, maybe it doesn't have the throughput.

Are you sure you're using the factory wire ground for the second battery?

 

[Admin]

 

[TripleB]

when i unhooked the aux battery,auxiliary side of isolator to meter shows 14.5, wouldn’t that mean it’s charging on that side too

I guess that's way over my head because I don't understand how that's possible.

 

[CID]

I guess that's way over my head because I don't understand how that's possible.

If there’s a shorted cell in the aux battery, it could drag down the isolator as soon as it‘s hooked up.

Buckslayr - unhook the aux battery and hook it to your charger overnight - see if it will take a charge. Or take it to the auto parts store for a load check.

 

[Smitty335]

I guess that's way over my head because I don't understand how that's possible.

Well the elevation wouldn't be that high for you and I! HA! First thing I would check would be a load check on the secondary battery. I used the Odyssey battery for the secondary battery because Tru told me that's the battery they designed there Isolator for? Doesn't seem as though it would matter what battery as long as it's the proper voltage and amp draw?

 

[Buckslayr]

If there’s a shorted cell in the aux battery, it could drag down the isolator as soon as it‘s hooked up.

Buckslayr - unhook the aux battery and hook it to your charger overnight - see if it will take a charge. Or take it to the auto parts store for a load check.

i have a load tester, it pulled it down to high bad but i think that’s because it wasn’t charged, i have a trickle charger on it till morning then will check

 

[Remington]

i have a load tester, it pulled it down to high bad but i think that’s because it wasn’t charged, i have a trickle charger on it till morning then will check

I bet it wont make any difference. Weather its charged or not. If u had 11 of 12 volts when u put it on the LC. Wont matter. Sounds like what we said all along.

 

[TripleB]

I had my 1st isolator go bad after 1 year. It did the same as yours. Light would come on but my second battery wasn't charging. Bought a new one and haven't had a problem in over 3 years now. Still my original main battery and my original auxiliary mighty max battery.

The more I think about it, I don't think by blue light was coming on when my isolator went bad. It's been so long ago that I can't remember for sure. Oh well.

 

[Buckslayr]

I bet it wont make any difference. Weather its charged or not. If u had 11 of 12 volts when u put it on the LC. Wont matter. Sounds like what we said all along.

what do you think it is?

 

[Remington]

what do you think it is?

Dead cell

 

[Smitty335]

Dead cell

Well I don't want to use a LT on my body, probably show a bunch of dead cells!

 

[Buckslayr]

Dead cell

i charged the battery. put my foxwell tester on it and it showed good battery. 614 cca on a 400 cca battery.I hooked it up and my voltmeter said 12.5 volts now,14.5 on the voltmeter when the battery is un hooked.all my accessories hooked to auxiliary battery work, could it still be a ground.I traced my ground and it goes to the factory ground spot,I'm getting baffled.should I hook another battery to the isolator and see if it charges that one.getting p######

 

[Remington]

Does the foxwell tester put a true load on the battery? One other thing u can do is put something on it that will put a draw on it and see if it starts to poo poo

 

[Hondasxs]

.I traced my ground and it goes to the factory ground spot

Can you clarify what you are calling the "factory ground".

I only ask because I have seen similar issues as you described when owners chose an improper ground.

 

[Buckslayr]

Can you clarify what you are calling the "factory ground".

I only ask because I have seen similar issues as you described when owners chose an improper ground.

up on the frame behind the dash where factory battery is grounded

 

[Buckslayr]

Does the foxwell tester put a true load on the battery? One other thing u can do is put something on it that will put a draw on it and see if it starts to poo poo

it is suppose to be one of the best testers made, i use it on my farm,i turned the heater on and it draws down from 12.5 to 12.4

 

[Buckslayr]

Does the foxwell tester put a true load on the battery? One other thing u can do is put something on it that will put a draw on it and see if it starts to poo poo

if i just hook another battery to the isolator, where the auxiliary is, if it’s good it should charge right?or how about i hook the auxiliary to main side of isolator

 

[Remington]

if i just hook another battery to the isolator, where the auxiliary is, if it’s good it should charge right?or how about i hook the auxiliary to main side of isolator

Well were going all over the map here. As my ole Pappy use to say…If u dont know where to go? Start from the beginning! 🤣

So lets work smarter not harder.
start from the beginning again. Explain it short and sweet, Clift Notes version what the issue is.

 

[Hondasxs]

how about i hook the auxiliary to main side of isolator

It's ambidextrous, so that makes no difference.





Sent from my SM-G996U using Tapatalk

 

[Buckslayr]

It's ambidextrous, so that makes no difference.





Sent from my SM-G996U using Tapatalk

well I've come to the conclusion its the isolator,I hooked a seperate battery to it and same reading of 12.5 volts,I know both used to be 14.4.I will get a new isolater and try that,

 

[Tramguage1]

Have you by chance swapted the meter + input wires to see if you get same results?