John,
Thanks for the reply. The batteries are deka 8D gell dominators. The charger is a Xantrex new generation inverter/charger with all the bells and whistles, and all the parameters are adjustable. It also includes temperature compensated. The wire is attached to the positive post of one of the batteries. The 13.4 volts I am talking about are not the amount of charge voltage. The 13.4 volts is the voltage the batteries read that causes the battery charger to start charging the batteries. In other words, when the batteries drop to 13.4 volts, the battery charger goes into bulk charging mode. I am not sure but I think this 13.4 volt is only applicable when the charger is set to two stage charging. In that mode, the charger does not go into float mode, but just stops charging. So, I would like to know at what voltage should I set the charger so that it will start charging again. I think that 13.4 is way too high. It seems at that voltage the charger would always be charging. I am going to call Xantrex on Monday. I am also going to ask what charging volages are default when the charger is set to gell mode. Thanks.
Larry