they have to be recycled and they wont work.
Check he battery in the hand held unit.
Your car wont start. lol
i think what it is, you need to charge your battery but let it charge for about five minutes and if that doesn't work then you need a different battery
Defective starter or weak battery. Can also be a loose connection at the starter.
Charge the BATTERY
If the car is left sitting for a long time and not running, yes. In some cars the cigarette lighter wont work unless the car is on for this reason.
You can get a car alarm that uses it's own battery so wont drain the car.
You may have to disconnect and recharge your car battery for your car stereo to work again.
Many current radios have an anti-theft device that if it is removed from power, such as the battery dying, prevent it from working. Your car dealership can probably tell you how to get it taken care of so that it works again.
Starter, battery, battery connections, neutral switch,
Possibly the connection at the battery. Corrosion between the cable and the battery. The jumper cables are only connected to the cable and nothing is getting through from the battery in the car. Sure you have connection at both ends of the cables. It may not be the battery, starter may be bad or if the cables are badly corroded, the corrosion can work down the cable inside of the insulation and that will make them not work.