VE Battery negative CLAMP?

[duca1991]

Hi all, i have a dual battery setup in my VE series 2 as it was an ex cop. I have re did all the wiring for my sound system, upgraded it to 0 gauge with a big battery isolator inbetween. I am just wondering as i have not grounded my second battery 'through the clamp' that the main battery goes through but just next to the battery. I think by doing that the BCM has no idea how much charge is in the second battery. I notice after a night of the car sitting there, in the morning its sitting at 12.0v which seems a bit low so i think im doing damage somewhere. What would happen if i take the clamp off the main battery completely? would the alternator charge at 100% full all the time? so both batteries are getting proper charge? or would they not charge at all? im too scared to try it. Suggestions?
Thank you

 

[Aussie Willy]

I looked, I read, I closed.

 

[duca1991]

Thanks for the help

 

[Shorty33]

Electrics are not my strong suit.
I bought an ex-Police car - with only one battery.
A couple of times, I have had queries, and have phoned or visited the Police Workshop. Both times, I found them very helpful.
So my suggestion is that you ask them if they have any comment to offer in response to your question.

 

[Tasmaniak]

You may need to check that your car is still in dual battery mode. VEs will not charge two batteries properly if it's not in dual battery mode. I believe only Holden can check this for you or perhaps the engineering mode but tell you. Not sure.