TP2 Aux Battery - The 1947 - Present Chevrolet & GMC Truck Message Board Network

davepl · 12-30-2011, 02:39 PM

My truck has the TP2 Aux Battery option and there's a (currently empty) extra tray. I don't see a switch, and I'm wondering if someone could describe the operation and how they're used.

On my boat, which has dual batteries, I installed a relay block so both charge at all times and then you select which to draw from. But since this is a "Custom Camper" I wonder if it only gets charged and then is used for the camper. Or does it also participate in starting?

12-30-2011, 02:39 PM	#1
davepl Registered User Join Date: Aug 2006 Location: Redmond, WA Posts: 6,334	TP2 Aux Battery My truck has the TP2 Aux Battery option and there's a (currently empty) extra tray. I don't see a switch, and I'm wondering if someone could describe the operation and how they're used. On my boat, which has dual batteries, I installed a relay block so both charge at all times and then you select which to draw from. But since this is a "Custom Camper" I wonder if it only gets charged and then is used for the camper. Or does it also participate in starting? __________________ 1970 GMC Sierra Grande Custom Camper - Built, not Bought 1969 Pontiac 2+2 427/390 4-speed Coupe 1969 Pontiac 2+2 427/390 4-speed Convertible

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