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Username Post: Dual Batteries        (Topic#356443)
Senior Member
Posts: 153

Reg: 08-28-04
05-16-19 10:47 AM - Post#2766548    

Anyone know if GM produced a dual battery setup for these trucks? If so, might you have PN#'s?


Valued Contributor
Posts: 4237
Age: 36
Loc: wv
Reg: 08-29-12
05-16-19 04:03 PM - Post#2766567    
    In response to albyneau

They did but I don't know any part numbers. The 6.2 and 6.5 diesel trucks had dual batteries. All you would need would be the battery tray. You can make good top post cables cheaper than you can buy the factory ones. I really don't like side posts.


'88 Chevy K3500, aluminum head roller cam 511inĀ³ stroker 10.5:1 compression, 96 NV 4500, 94-98 grille, 305/70-16 (33x12) BF Goodrich KM2s, 91 cluster swap

"6th Year" Gold Supporting Member
Posts: 2749
Age: 33
Loc: Utica ny
Reg: 04-13-10
05-16-19 06:03 PM - Post#2766577    
    In response to bowtie44s

Other battery goes on the other side.
Same position, just different side of the truck.
You may have something in the way of installing the other tray but IIRC it is minor

Old School GM fan FOREVER

Silver Supporting Member
Posts: 2492
Loc: Belchertown, MA
Reg: 04-06-03
05-20-19 03:18 AM - Post#2766763    
    In response to rockfangd

^^^ on my 94 I think the only thing that gets relocated slightly would be the fuel vapor canister (charcoal can). Otherwise yes, a new tray (side specific) and cables.

I think I would wire in some kind of dual battery management system though to give more flexibility.

Edited by scrambldcj8 on 05-20-19 03:22 AM. Reason for edit: No reason given.

Super Senior Member
Posts: 3776

Loc: Bedford, Texas, USA
Reg: 11-13-02
05-21-19 07:49 AM - Post#2766844    
    In response to albyneau

Both of my 99 Tahoes and my brothers 99 Suburban all had dual battery trays from the factory. They usually have an underhood storage box clipped into the driverside tray.

1983 G20 Van, 350 TPI, Ported 906 Vortecs, Edelbrock 3817 Base, ASM oversize runners. Reed Custom Roller cam, 700r4, 12 bolt with 3.08 gears, Doug Thorley Tri-Y headers, true duals

Edited by 1983G20Van on 05-21-19 07:50 AM. Reason for edit: No reason given.

"6th Year" Gold Supporting Member
Posts: 2749
Age: 33
Loc: Utica ny
Reg: 04-13-10
05-21-19 07:21 PM - Post#2766897    
    In response to 1983G20Van

It varies.
I had a 97 that the storage box was bolted in the place of a battery tray.
I wanted to install it in my 90 but I had issues. I cannot remember what it was, but I believe the canister was one of the issues, and possibly my washer jug

Old School GM fan FOREVER

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