A battery is only a storage container for energy.  It cannot manufacture energy, but only releases energy after it has been charged.  Use heavy duty deep cycle batteries.  Replacement batteries should be of the RV / Marine Deep Cycle type.  Proper maintenance will provide trouble free operation and help prolong the life of the battery.

So you should have

1) Inspect and fill battery electrolyte levels also testing the battery with proper equipment.

2) Check battery cable connections for clean tight connections and copper shield

3) Batteries fully charged – specific gravity should read between 1.215 and 1.250

4) Vent caps are tight, replace if cracked

Circle K Service can do this for you.                                                Don't let your Battery look like this!!!