if the battery is dead, there will be no ignition lights etc when u turn the key your headlights would be very dim if on at all. the alternator only works when engine is running, so if alternator is dead it will not charge the battery most auto stores will check both battery and alternator for free if you remove from car and take them to the store
Charge it, test it, replace it.
You need a new battery or a new alternator.
Dead battery, loose battery cable, failed starter, blown fuse, failed neutral switch,
Any light on the vehicle that is on all the time, and any relay that is stuck. Also if the battery has a dead cell it will not hold a charge.
It could be poor battery connections, the starter,
Yes. If the alternator is dead and you drive the vehicle, all the power is coming from the battery and it will eventually drain completely. Also, if a diode is shorted inside the alternator, that can drain a battery.
Alternator is defective, dead cell in the battery, or something is on pulling power from the battery.
An alternator is designed to keep a fully charged battery at peak level. It is not designed to charge a dead battery. Installing a new alternator on a car with a dead battery can in some cases ruin the new alternator. Fully charge the dead battery before starting the engine.
Corroded or loose battery connections, loose alternator drive belt, defective alternator, or dead cell in the battery.
dead battery dead alternator dead voltage regulator each needs to be tested.
Is it a problem of the battery goes dead or does it crank but not catch? If the battery is going dead over time perhaps you need to check the battery and/or alternator. If it's cranking but not starting, check the computer codes.
HAVE YOU CONSIDERED THE BATTERY MAY HAVE A DEAD CELL AND CANNOT HOLD A CHARGE? IS THE ALTERNATOR INFACT PUTTING OUT ENOUGH VOLTAGE TO PROVIDE THE BATTERY WITH A CHARGE, APPROX. 13 TO 14 VOLTS.