Battery Minder vs monthly drive

[UpNorth]

I will be replacing the 8 x6v batteries in my 2007 ParCar shortly, and was wondering if I should invest in a Battery Minder at the same time. The alternative is to have someone come in once a month while I'm away to give the cart a run and hook up the charger if needed. I would like to get as many years as possible out of these 8 batteries, and if the addition of the Battery Minder will make a difference vs the monthly exercise, it will be worth it. So, will the Battery Minder add a year or two to the batteries, or will the simple monthly "exercise" do as well?

[Frank7]

Aside from the Battery Minder being a low amp charger it is most popular for its desulfating
Properties. The unit will maintain the system fine but checking the water and moving the cart is always a plus.
Do I feel you can add two years life to your batteries, only if you take great care of your system keep it clean and charge properly at all times.