[UpNorth]

I have a 2007 ParCar which has been converted to charge on either a Battery Minder or a full-size, external Lester Electric Links battery charger. The batteries in my cart are about 1 year old, and I have no issues using either chargers when I am home. However, when I go away for about 5 months and plug in the Battery Minder, it slips back to the Yellow indicator after several weeks and I have to have someone come in and charge it back up with the big Lester Electric charger. I would prefer using the Battery Minder during those months, because that's what a Battery Minder is for. My question is: would it do any harm to simply leave the big charger plugged in when I am away? Or should I connect both?