Question for you guys. I've got a 70lb minnkota 24 volt troller. I was thinking about trading the batteries in this year for two new ones. I bought a new deep cycle battery for the camper last summer and ended up selling the camper without the battery. It's the same battery that I use in the boat but it's almost a year old. Do you think I could get away with pairing a new battery up with the slightly used one I have for a 24 volt system or should I just get two new batteries. The one from the camper was only used twice but I've kept it charged up over the winter.