Moderated Discussion Areas
  ContinuousWave: Small Boat Electrical
  24' 1999 Justice rewiring

Post New Topic  Post Reply
search | FAQ | profile | register | author help

Author Topic:   24' 1999 Justice rewiring
cjmiller posted 03-24-2009 10:09 AM ET (US)   Profile for cjmiller   Send Email to cjmiller  
24' 1999 Justice rewiring. Project thread on repair topic, but this portion is specific to electrical.

OK, for battery wiring... Whaler puts the batteries in the console, so that's what I'll do as well.

Will run black/yellow wiring down each chaseway to the stern, to a terminal block on each side. .

Likely will source wiring in about 1/0 size for each side from battery to terminal post for each engine. Haven't measure the length, but probably 4 pieces at 18' each max, leaving about 6' of the factory cable to each outboard.

Two group 27 starting batteries, plus another battery for any house loads. One starting battery per engine, with starboard engine also charging a house battery with a 7610 automatic charging relay (ACR) with start isolation.
This schematic is likely where I'll end up; it uses a second ACR as well.

Question: anyone ever mount the two switches in the console mounted electrical box? Picture here: 200903DnrJustice#5311652189393447234

The only other electronics I'm likely to mount in there are a radio with hailer on the right side, and a Humminbird Matrix 97 GPS/fishfinder on the right. I also have an overhead electrical box, but I may remove that for now to reduce weight and windage.

I have a Dual Pro SE charger/battery maintainer (two independant 10 amp banks) that I will use when on the trailer.

Question: will the charger, through the ACR(s), also handle maintaining the house battery? I checked the Dual Pro site and this question isn't specifically answered. Ideal solution may be to buy a three bank charger, but want to avoid that if possible, as I already have this one.

Wow, longer than planned. Might have been better as separate posts in one thread.

Thanks, Chris

phatwhaler posted 03-24-2009 08:41 PM ET (US)     Profile for phatwhaler  Send Email to phatwhaler     

If you're looking for the hinges for your electronics box cover they are available here.


Also my whaler has the same box with that has a flat 1/2 inch starboard panel that I use to flush mount my electronics into the "glove box" The flat panel screws into two cleats that are screwed into the sides of the electronics box.

Cleats in the wood working context not nautical cleats.

cjmiller posted 03-24-2009 09:03 PM ET (US)     Profile for cjmiller  Send Email to cjmiller     
Thanks, I will need to replace the cover, and want to flush mount at least some of the components within the box. I'll see about ordering some of those hinges.
jimh posted 03-24-2009 10:16 PM ET (US)     Profile for jimh  Send Email to jimh     
The ACR responds to the voltage at the battery to which the ACR's sense lead is connected. It can't tell if that voltage is coming from the battery itself or from the battery and a charger. As soon as the battery terminal voltage exceeds the threshold of the ACR for the required time period, the ACR will operate and connect the HOUSE battery in parallel.

One concern you might have is the possibility for some chatter in the ACR if the charger can't maintain the terminal voltage once the second battery comes on line in parallel with the first. With a 10-ampere charger my guess is you will be okay.

Post New Topic  Post Reply
Hop to:

Contact Us | RETURN to ContinuousWave Top Page

Powered by: Ultimate Bulletin Board, Freeware Version 2000
Purchase our Licensed Version- which adds many more features!
© Infopop Corporation (formerly Madrona Park, Inc.), 1998 - 2000.