The answer to this question is very much vehicle specific. Check your owners manual.
You can disconnect the battery for ten minutes and it will reset
only need to change a battery if the battery is not holding a charge suffient to start the engine
charge the battery, change the battery, use the back up start either a pull start or kick start.
Yes it will
run a live an earth straight from the battery to the fual pump servo unit, will start straight up
A battery can last from 1 year to many years. You change it when it no longer will start the car or when it no longer will hold a charge.
Your car wont start. lol
In battery terminology, "cold start" refers to the process of powering up a battery-operated device or system from an inactive or low-temperature state. This situation can lead to reduced performance, as battery efficiency and chemical reactions are affected by temperature. Cold starts are particularly relevant in electric vehicles and backup power systems, where battery capacity may decrease in cold conditions, impacting the device's ability to function optimally.
The battery is only a storage device. The alternator replaces the electrical energy that the battery uses every time you start the engine and every time you turn on an electrical device in the car. If the alternator isn't working or isn't working properly, the battery will eventually discharge. Answer if the alternator is in fact working but you have let the battery run empty, simply getting a jump start might not allow the battery to charge sufficiently once you start driving again. you have to charge the battery up a sufficient amount or the battery will just run out again.
Check fuses as the battery change should not initiate a "No Start" condition.
if there is power, change coil. if there isn't power, change battery
get in the car and turn the key. if your unable to start it then something else went wrong.