Read the manual for the battery care chart. Everything else is just trial and error on the court. Have a Tennis Tutor Model 2 horror story or a drill you love? Drop it in the comments below!
Freezing temperatures will kill a lead-acid battery instantly. The plastic casing is UV resistant, but the internal electronics hate humidity. Store the machine in a dry place, preferably with a cover over the hopper to keep out spiders and leaves. The Tennis Tutor Model 2 manual is surprisingly well-written for an industrial machine. It is not flashy, but it is logical. tennis tutor model 2 manual
The machine itself is a tank. It won't spin like a Slinger Bag or program 2-line drills like a Spinshot, but it will outlive them all. Keep the battery charged, don't force the oscillation gears, and clean the wheels if they get dusty. Read the manual for the battery care chart