isolated dual battery upgrade--pn's needed

Rolandd · September 13, 2006

While I have searched the forum, I cannot find the post that someone put up that lists all the GM part numbers for what is needed to upgrade to an isolated dual battery. I am adding a voltage inverter and want to run it off a separate battery. I know I need the tray, hold down clamp, isolator unit, cables, ???. The parts drone at the local dealer was trying to sell me the driver's side tray based on the truck's VIN, so they are not much help....

Thanks,

--Roland

sc4808 · September 13, 2006

Can't help you with part numbers, but will help you with some advice, instead of an isolator go to Painless Wiring's web site and purchase their dual battery kit, it is much better and even allows you to jump yourself off if needed.

97whitez71 · September 13, 2006

I installed dual batteries on my '97. I used an isolator sold through Warn. I have had no problems what so ever. And I can jump myself off. I did find out later that the same isolator sold through Warn, was availble through my local NAPA without the Warn logo.

MS3DALE · September 13, 2006

Here ya' go.......

RELAY,AUX.BATTERY#12135194

CABLE,NEGATIVE#15321207

CABLE,POSITIVE;AUX.BATTERY#15372010

CABLE,POSITIVE;AUX.RELAY TO AUX.BATTERY#15372009

CABLE,POSITIVE;STARTER TO AUX.RELAY#15321259

BLOCK,AUX.BATTERY JUNCTION#15305003

FUSE,40 AMP MEGA#15383342

RETAINER,AUX.BATTERY HOLDDOWN#356668

TRAY,AUX.BATTERY#15246518

AND OF COURSE YOU NEED A 78-SERIES BATTERY.

I should add that there are some "standard" parts you need as well,Such as nuts,bolts,retainers & clips,These are easily procured at any auto parts or hardware store.

One other thing,These part numbers are for RPO Option Codes TP2 or 8B0.

Rolandd · September 13, 2006

Rich, Many thanks for the numbers. For everyone else, many thanks for the advice. Now to get it all in one place and have a good afternoon weather-wise to put it all together....

--R

blueinterceptor · September 14, 2006

Here ya' go.......

RELAY,AUX.BATTERY#12135194

CABLE,NEGATIVE#15321207

CABLE,POSITIVE;AUX.BATTERY#15372010

CABLE,POSITIVE;AUX.RELAY TO AUX.BATTERY#15372009

CABLE,POSITIVE;STARTER TO AUX.RELAY#15321259

BLOCK,AUX.BATTERY JUNCTION#15305003

FUSE,40 AMP MEGA#15383342

RETAINER,AUX.BATTERY HOLDDOWN#356668

TRAY,AUX.BATTERY#15246518

AND OF COURSE YOU NEED A 78-SERIES BATTERY.

I should add that there are some "standard" parts you need as well,Such as nuts,bolts,retainers & clips,These are easily procured at any auto parts or hardware store.

One other thing,These part numbers are for RPO Option Codes TP2 or 8B0.

<{POST_SNAPBACK}>

i want to add a second battery to my 07 suburban are these the same parts that i would need? and part numbers?

MS3DALE · September 14, 2006

Here ya' go.......

RELAY,AUX.BATTERY#12135194

CABLE,NEGATIVE#15321207

CABLE,POSITIVE;AUX.BATTERY#15372010

CABLE,POSITIVE;AUX.RELAY TO AUX.BATTERY#15372009

CABLE,POSITIVE;STARTER TO AUX.RELAY#15321259

BLOCK,AUX.BATTERY JUNCTION#15305003

FUSE,40 AMP MEGA#15383342

RETAINER,AUX.BATTERY HOLDDOWN#356668

TRAY,AUX.BATTERY#15246518

AND OF COURSE YOU NEED A 78-SERIES BATTERY.

I should add that there are some "standard" parts you need as well,Such as nuts,bolts,retainers & clips,These are easily procured at any auto parts or hardware store.

One other thing,These part numbers are for RPO Option Codes TP2 or 8B0.

i want to add a second battery to my 07 suburban are these the same parts that i would need? and part numbers?

No,They are not the same,Everything is different on the '07 Suburbans/Tahoes/Avalanches.

I'll have to look into the part numbers for adding a second battery on the GMT900's.

Metro12 · January 12, 2008

Anyone have part #s for 2nd battery upgrade on the 07 NBS trucks? Anyone done the upgrade?

topdj · January 12, 2008

Im running dual on my NBS07 I didnt buy a single GM part

I had an extra bolt and some parts to make secure the battery

slugbelch · January 12, 2008

Rich, Many thanks for the numbers. For everyone else, many thanks for the advice. Now to get it all in one place and have a good afternoon weather-wise to put it all together....

--R

Where is your location for the 2nd battery? I am planning on doing this conversion too and my prolem is location, location, location.

michigansilver03 · January 12, 2008

Most folks put it on the passenger side rear, that how the 2nd battery tray fits

jrrod2004 · January 12, 2008

Here ya' go.......

RELAY,AUX.BATTERY#12135194

CABLE,NEGATIVE#15321207

CABLE,POSITIVE;AUX.BATTERY#15372010

CABLE,POSITIVE;AUX.RELAY TO AUX.BATTERY#15372009

CABLE,POSITIVE;STARTER TO AUX.RELAY#15321259

BLOCK,AUX.BATTERY JUNCTION#15305003

FUSE,40 AMP MEGA#15383342

RETAINER,AUX.BATTERY HOLDDOWN#356668

TRAY,AUX.BATTERY#15246518

AND OF COURSE YOU NEED A 78-SERIES BATTERY.

I should add that there are some "standard" parts you need as well,Such as nuts,bolts,retainers & clips,These are easily procured at any auto parts or hardware store.

One other thing,These part numbers are for RPO Option Codes TP2 or 8B0.

Rich, was this for the GMT800 Series truck (As in my 06?)

jrrod2004 · January 12, 2008

From GM Parts Direct:

GM

Part #CategoryDescriptionPack QtyUnit PriceQuantityExt.

PriceYOU

SAVECore ChargeS&H ApproxTOTALRemove Part*15372009

Positive Battery Cable

CABLE

1

$36.98

$34.12

$0.00

$10.95

$47.93

*12135194

All

RELAY

1

$31.67

$21.77

$0.00

$6.97

$38.64

*15321259

Positive Battery Cable

CABLE

1

$28.33

$26.13

$0.00

$6.23

$34.56

*15321207

Negative Battery Cable

CABLE

1

$25.56

$23.58

$0.00

$5.62

$31.18

*15372010

Positive Battery Cable

CABLE

1

$24.49

$22.60

$0.00

$5.39

$29.88

*15246518

Battery Tray

TRAY

1

$17.94

$12.32

$0.00

$3.95

$21.89

*19151476

Main Wiring Junction & Fuse Block Hardware

BLOCK

1

$10.80

$7.41

$0.00

$2.38

$13.18

*356668

Battery Hold Down Retainer

CLAMP V

1

$5.18

$3.56

$0.00

$1.14

$6.32

*15383342

Main Wiring Junction & Fuse Block Hardware

FUSE

1

$2.79

$1.92

$0.00

$0.61

$3.40

Subtotal:

$226.98

Metro12 · January 12, 2008

Mike, is that for the 07 up NBS?

jrrod2004 · January 12, 2008

no that was for the GMT-800, I called some former co-workers and referenced the part numbers. It seems that the GMT-900s are different. (That sucks)

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isolated dual battery upgrade--pn's needed

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