It usually takes several hours to charge a typical 12-volt power supply for a car and for marine or deep cycle batteries, it usually takes longer. Luckily, using the tender jr. is quite easy and even people who are not used to using such chargers will agree that it is a breeze to set up and to operate. If you want to know how to hook up a tender Jr., read the instructions below.
To hook up this charger, you will need the ff.:
Now to get down to business!
So you see, that is how to hook up a battery tender jr. and it is as easy as pie. It will take you longer at first but after several tries, you should have it down pat.