The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1988 - 1998 Chevy & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 10-30-2017, 08:41 AM   #1
rideblue00
Senior Member
 
rideblue00's Avatar
 
Join Date: Feb 2010
Location: Lambertville, MI
Posts: 1,606
2nd Battery

What do I need to do to add a second battery for running a plow setup? I have a 98 K 1500.
rideblue00 is offline   Reply With Quote
Old 10-30-2017, 10:46 AM   #2
95 S_Trucker
Senior Member
 
95 S_Trucker's Avatar
 
Join Date: Oct 2009
Location: Lancaster, PA
Posts: 1,593
Re: 2nd Battery

Is your truck equipped with a second battery tray? or an underhood storage box? You will need a second battery tray(for the driverside) a battery hold down wedge, and a bolt to hold the wedge down. You will ned a second battery( I prefer side post to match the other). You will need some cable and cable lugs. You will need battery terminal extenders for your main battery. You can also use them at the second battery. I wired my second battery in parallel with the main battery. I ran the cables accross the top of the fans shroud. I have 2 78 series batteries.

I did this on my 99 K2500(old style) when i had a plow on it.

The deka part number for the externder is 00543(regular style) and 00542(short style)
__________________
-99 K2500 LS CCSB 7.4
-96 C3500 HD 7.4 NV4500 Rollback

My 85 Project: http://67-72chevytrucks.com/vboard/s...d.php?t=368864

78 Big10 Project: http://67-72chevytrucks.com/vboard/s...d.php?t=383629

96 Project: http://67-72chevytrucks.com/vboard/s...d.php?t=614515
95 S_Trucker is offline   Reply With Quote
Old 10-30-2017, 12:43 PM   #3
Mr_Rich
Registered User
 
Mr_Rich's Avatar
 
Join Date: May 2006
Location: Santa Maria, Calif.
Posts: 368
Re: 2nd Battery

I installed a second battery in my K1500 back in the day when those parts were still available over the counter. There's a relay (next to the washer bottle) with wiring that ties in to my main connector under the dash. I suppose you could still find an isolator if you wanted to run your battery separate from the main.
Attached Images
 
__________________
1989 K1500 Chev. EC
Original owner; some of the aftermarket parts I've installed are Borla headers, Hypertech chip, Edelbrock water pump, and a Stillen rear disc brake conversion kit.
2009 Hummer H3T 3.7L 5M.
1997 K2500 Chev. EC 7.4L/ 4L80E
Mr_Rich is offline   Reply With Quote
Old 10-31-2017, 08:13 PM   #4
sctrailrider
Registered User
 
sctrailrider's Avatar
 
Join Date: Aug 2014
Location: Pauline,SC
Posts: 8
Re: 2nd Battery

Find a diesel truck around the same year give or take, they all have 2 batteries and take the tray it should bolt right up...
__________________
1993 Chevy K3500 CCDRW
Coming soon, frame off resto, Cummins 6bt swap.
sctrailrider is offline   Reply With Quote
Old 10-31-2017, 08:59 PM   #5
rideblue00
Senior Member
 
rideblue00's Avatar
 
Join Date: Feb 2010
Location: Lambertville, MI
Posts: 1,606
Re: 2nd Battery

I have the tray, was wondering about the harness. Pics?
rideblue00 is offline   Reply With Quote
Old 11-04-2017, 06:02 AM   #6
rideblue00
Senior Member
 
rideblue00's Avatar
 
Join Date: Feb 2010
Location: Lambertville, MI
Posts: 1,606
Re: 2nd Battery

Anyone have some pics?
rideblue00 is offline   Reply With Quote
Old 11-04-2017, 07:30 AM   #7
speedygonzales
Registered User
 
speedygonzales's Avatar
 
Join Date: Jan 2006
Location: Smithfield, VA
Posts: 1,256
Google is a wonderful tool

http://www.hardworkingtrucks.com/gm-...tery-install/#
__________________
99 Z71 (98 body style)
Pride and joy
speedygonzales is offline   Reply With Quote
Old 11-04-2017, 08:16 AM   #8
rideblue00
Senior Member
 
rideblue00's Avatar
 
Join Date: Feb 2010
Location: Lambertville, MI
Posts: 1,606
Re: 2nd Battery

Thanks man, best write-up ive seen yet!
rideblue00 is offline   Reply With Quote
Old 11-04-2017, 12:42 PM   #9
95 S_Trucker
Senior Member
 
95 S_Trucker's Avatar
 
Join Date: Oct 2009
Location: Lancaster, PA
Posts: 1,593
Re: 2nd Battery

That write up is for 2007+ trucks. There's no need for an isolator on a plow truck, since the majority of the electrical load happens when the truck is running.
__________________
-99 K2500 LS CCSB 7.4
-96 C3500 HD 7.4 NV4500 Rollback

My 85 Project: http://67-72chevytrucks.com/vboard/s...d.php?t=368864

78 Big10 Project: http://67-72chevytrucks.com/vboard/s...d.php?t=383629

96 Project: http://67-72chevytrucks.com/vboard/s...d.php?t=614515
95 S_Trucker is offline   Reply With Quote
Old 11-05-2017, 01:25 PM   #10
abig84
Registered User
 
Join Date: Jan 2017
Location: wheaton IL
Posts: 436
Re: 2nd Battery

on my 86 i just run them in series so its basically just like one giant battery. figured why not since i had two battery trays already in it, although its a little easier on those trucks as the batteries are right next to each other.

been tossing this idea around for my 1990 too
abig84 is offline   Reply With Quote
Old 11-05-2017, 01:51 PM   #11
rideblue00
Senior Member
 
rideblue00's Avatar
 
Join Date: Feb 2010
Location: Lambertville, MI
Posts: 1,606
Re: 2nd Battery

Isnt the isolator for keeping one battery from discharging the other?
rideblue00 is offline   Reply With Quote
Old 11-05-2017, 04:12 PM   #12
Mr_Rich
Registered User
 
Mr_Rich's Avatar
 
Join Date: May 2006
Location: Santa Maria, Calif.
Posts: 368
Re: 2nd Battery

Quote:
Originally Posted by abig84 View Post
on my 86 i just run them in series so its basically just like one giant battery. figured why not since i had two battery trays already in it, although its a little easier on those trucks as the batteries are right next to each other.

been tossing this idea around for my 1990 too
Are you sure about that? Do you have a military truck rigged for 24V? If not your truck would've gone up in smoke. Some RV's have 6V batteries run in series for 12V with extra amperage for appliances, etc. In series you double the voltage, and in parallel you double the amperage. It doesn't add up exactly like that since you also have resistance within the battery itself, but that's the basic idea as I understand it.

I optioned my truck with stock dual batteries when the parts were still available. I use the second battery for jump starts in addition to isolated accessories to protect my main electrical system.
__________________
1989 K1500 Chev. EC
Original owner; some of the aftermarket parts I've installed are Borla headers, Hypertech chip, Edelbrock water pump, and a Stillen rear disc brake conversion kit.
2009 Hummer H3T 3.7L 5M.
1997 K2500 Chev. EC 7.4L/ 4L80E
Mr_Rich is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 07:49 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 1997-2013 67-72chevytrucks.com