Question about 'House' battery connection...

[Curt Sprenger]

Hi Brian,

I'm not there to do testing, etc., and we don't know who did what mods. over the years...but my guess is the house 12V passes from the batteries(starter) through the inverter.

On Tue, Aug 19, 2008 at 5:26 PM, t3brian <"brianp@t3networks.net"> wrote:

Hello all..... I am undertaking converting the original battery

configuration in my 84' PT 40 and I have some questions.......



Original:

4- RV deep cycle 12V batteries mounted on a battery tray in the engine

compartment, + lead connected to a power distribution 'stud' with 2

leads directly connected to the starter & 1 lead directly connected to

the 'Jump Start post' at the rear of the compartment on a frame rail

which then is connected to a couple of relays that are connected to the

key switch and the selector that allows for the engine to be started

from the 'rear' or 'front' ignition switch.



New:

2- 12V starting batteries in the engine compartment.

2- 4D deepcycle batteries in a 'new' converted stowage area just in

front of the 'rear' wheel axel.



Issue: I want to seperate the 'Start' batteries & the new 'house'

batteries.... I have an isolator to accomplish this.... however I am

having difficulty determining where the power source for the

current 'house 12V' is coming from...... it seems that when I look at

the starter.. there is 5 heavy guage wires connected to it... 2 of

which come from the + battery connection post and 2 of which go into

the compartment that houses the existing isolator, DC-AC redi line

generator along with 3 relays that appear to all be configured to

switch between combinations of power UP for the redi line, the

generator battary and some other features... but none of the

connections seem to be the connection to the existing 'house DC'

supply...



In order to properly configure the new battery configuration I have to

isolate the dc supply for the starter & the ignition switch and

seperate the existing 'house DC' so that I can supply each one with

it's own battery bank.. and place the isolator between the 2 so that

both battery banks are recievng a charge from the AC charger and the

alternator......



Does anybody hqave an idea as to where the existing 'house DC'

connection is coming from??? is it one of the cables attached to the

starter??? or do I need to look elsewhere???



Thank You

Brian

'The Green Hornet'

--
Curt Sprenger
1987 PT38 8V92 "MacAttack Racing"
Anaheim Hills, CA