Sometimes it's just a matter of a good connection you need to make sure you have good clean connections at all points coming from the battery, make sure the terminals are clean and tight if there is any corrosion between the battery post and the terminals you want get the proper amount of power going to the starter solenoid to kick in the starter and that's were you hear the click that's the solenoid trying to kick in.
battery is charged ,but still have to jump start it
A sing l e click is usually a failed starter. A repeated fast click is either a weak battery or a dirty battery cable.
Either the battery cables are dirty, battery is not fully charged, or the solenoid is stuck.
Possible causes include a weak battery, battery connections, and a failed starter.
probably a bad battery
Weak battery. Which may in turn be caused by a bad alternator.
It could be a number of things. First check that the battery is fully charged.
You can't. The wheel/tire must be removed in order to remove the battery. Click the link.
Either the battery just shows charged under no load or a bad ground at the terminals or starter. I think?
Most likely the starter solenoid needs replacement
It may still be the battery. If you just hear a click, it may be the starter is out. Make sure the battery is charged to the fullest. Sometimes the battery will have power but not enough to work the starter.
This could be the voltage regulator. Both the positive from the battery and the starter would be connected to it.