Adding second battery

Red · Post by **Red** » Sun May 02, 2004 10:48 pm

Im contemplateing adding a second battery to the 68. Mounting a second factory battery tray on the left side and making heavy gauge cables. better sterting power for the big block in the winter, plus I tow a trailer a lot. What do you guys think?

Post by **oneowner71** » Mon May 03, 2004 2:53 pm

Some of the camper specials had them from the factory, so it should work if you get the wiring down straight

Website · Post by **wideblock** » Mon May 03, 2004 5:29 pm

wireing is easy, the way my buddies old ford was, the primary battery + went to the starter relay and the negative went to the positive post of the second batt then the second batts neg went to ground. id check into this to be sure im right, but thats the way i remeber it.

Post by **Seabee** » Wed May 05, 2004 8:41 am

wideblock66 wrote:wireing is easy, the way my buddies old ford was, the primary battery + went to the starter relay and the negative went to the positive post of the second batt then the second batts neg went to ground. id check into this to be sure im right, but thats the way i remeber it.

wiring it in series this way will make it a 24 volt system. It should be paralleled + to + and - to -
This will increase the available amps but leave the volts at 12

Website · Post by **wideblock** » Wed May 05, 2004 5:19 pm

good point darren!! his was a diesil, and i have slept since we worked on it.