Originally Posted by hockey11
We are going to put them in the truck and switch out as needed!!!
1) Starting type batteries are not appropriate for this application. The plates are too thin and they have too much surface area to store more than a few hours of total charge. They are designed to give up 30-40% of their total capacity in a few minutes; then recharge in about 30 minutes of driving on the alternator.
Marine (Dual Purpose) or true deep cycle batteries are the way to go. They have thicker plates and hold lots more charge for longer life under discharge.
2) If you are going to keep your spare(s) in the bed of your truck, keep it (them) secured and supported (styrofoam?) to avoid cracking the plates from road shocks.
3) You might want to look at some "quick connect/disconnect" solutions for the batteries. http://www.amazon.com/Driver-Battery.../dp/B007JMTS14
so you don't damage the terminals.
4) You should also rig some kind of trickle charging system (using the truck's power) in the truck bed using the same type of connectors to keep them topped off while driving.
Lou and Laura with Bella - German Short Hair Pointer
2008 GMC Sierra 2500HD Crewcab SB Allison Duramax
2010 Flagstaff 8526RLWS - Superglide 3300
HAM CALLSIGN - KC3FFW