86 V20 CC Sterndrive Dual Batteries in livewell?

[1966Mustang]

Hello,

Is anyone running dual batteries in a CC with the 170? Usually I just carry a spare battery down in the livewell and some jumper cables but was thinking about rigging it up down there with the Add-A-Battery kit. Is this a good idea?

Another alternative would be mounting up under the co-pilot's seat - lots of dead space under there that I don't really intend to fill with anything.

Right now the only accessory electronics I am running are a garmin GPS and a VHF. Those are currently pulling power from the ACC circuit on the fuse panel.

Thanks for any input.

Best,

Perry