New battery goin dead over nite

Ok it started when i was jumping my nrwfews car caused my radio to burn out i changed fuses still nothing so oh well no radio but the problem is even after getting a new battery for my car this is the 5 th battery in less then a year and only does it in colder weather . My battety goes dead over bite i make sure all the lights goes off when i get out of my car and turn everything off . It didnt get very cold last nite but it was dead when i got in it to go to work today . Had the alternater checked they said was fine just andead battery . Any ideas plz help single mom working two jobs cant ag
Experienced mechanics share their insights in answering this question :
Hi there. To check to see if something is still on with the key on, remove the ground cable to the battery and put a digital volt ohm meter (DVOM) on the cable and onto the battery negative post. With the key in the off position, there should be no power, however, if something was to be active, there would be power. If the meter shows up with a small 0.2 voltage, then that is normal. If the voltage is 1 volt or more, then you have a parasitic draw (something staying live draining the battery with no way of charging it).

For the battery to drain overnight, there has to be a voltage of 5 volts or more present. The way to check this is remove one component at a time. For your radio that is not working, remove the power wire to the radio and if the voltage drops to 0, then the radio is the problem. If the radio is not the problem, continue unplugging one thing at a time until the meter reads 0. Then fix that part to keep your battery from draining. If you need further assistance troubleshooting your vehicle, then seek out a technician, such as one from YourMechanic, that can assist you with your battery issue.

How to Identify and Fix Common car Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced mechanics :

Hi, if you have a new battery and there is still no power coming to the car then there is a chance the main fuse has blown. This fuse protects the main electrical components from surges in power and will shut off all power in the car if blown.
The first time you get a big truck and take a look under the hood you might just do a double take when you see two batteries instead of one. The two batteries are for higher cranking amps, which are needed for the high resistance load that a diesel engine requires during starting.
But sometimes even a new battery can succumb to extreme temperature changes. This will either weaken the overall performance or cause it to die completely. If you notice that your battery is experiencing a performance issue, you can contact your nearest car service provider to help you diagnose and solve the problem.
BCI Group Size 90 and 96R are the usual options for the HHR battery size, but there could be a better choice for yours. Our friendly staff at AutoZone is always ready to help you find the best battery for your vehicle. Don`t wait until your Chevy HHR battery dies completely.
Buying a Replacement Battery for Chevrolet HHR

The average car battery lasts three to five years. Check your battery regularly and replace it as needed so it doesn`t leave you and your Chevrolet HHR stranded.

A secondary cell or battery is one that can be electrically recharged after use to their original pre-discharge condition, by passing current through the circuit in the opposite direction to the current during discharge.
Parasitic Drain

A small amount of parasitic drain is normal and expected, since things like your clock and audio system need some power to avoid being reset every time you turn off the car. However, excessive parasitic drain can be a problem, leaving your battery empty by morning.

Using a test switch and digital ammeter is the simplest, most accurate way to measure parasitic drain directly. A test switch goes between the negative battery terminal and negative battery cable.
The T5 dual-purpose battery, with Full Frame technology, provides maximum performance and cycle stability, especially for vehicles with a high energy demand and frequent disch… See more below. Service Centers.
An effective method to determine whether it`s your battery or alternator that`s gone bad is to connect jumper cables from a running vehicle`s battery to yours. After a few moments, try starting your vehicle. Once it`s started, remove the jumper cables — if your engine stalls, your alternator has probably gone bad.
If the [battery`s] voltage is low, replace with a new battery or charge the battery to the recommended 14.2 to 14.7 volts,” he says. “Then try to run the vehicle and see if the voltage after is outside of that range. If it is, that`s a sign of a bad alternator.”
If your vehicle won`t start, it`s usually caused by a dying or dead battery, loose or corroded connection cables, a bad alternator or an issue with the starter. It can be hard to determine if you`re dealing with a battery or an alternator problem.
Flat or faulty car battery

A flat battery is the most common reason your car won`t start and can be caused by a number of things, such as lights being left on, something in the electrical system causing a battery drain, or even a faulty battery that won`t hold its charge.

If your vehicle won`t start, it`s usually caused by a dying or dead battery, loose or corroded connection cables, a bad alternator or an issue with the starter. It can be hard to determine if you`re dealing with a battery or an alternator problem.
Bad or dead battery

The most common reason cars don`t start is a dead or faulty battery. Even though most cars run on gasoline, they all require electrical power to function. The starter that cranks your engine to start requires an electrical signal to fire.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

I got a new battery new alternator put in but my battery just gets drained I keep having to buy new batterys
ANSWER : This may be a sign of a failing voltage regulator or potentially a bad grounding problem causing a draw on the system. The voltage regulator is a unit that regulates the charging of the battery by the alternator. Often times this will result in the alternator allowing too much power to be delivered to the battery resulting in damaging wires and prematurely sometimes destroying the battery. In other cases it may result in the alternator not supplying enough power to the battery, resulting in undercharging the battery or not charging it at all. In either case, I would recommend having an expert from YourMechanic come to your location to diagnose your vehicle’s charging system.

New battery goin dead over nite
ANSWER : Hi there. To check to see if something is still on with the key on, remove the ground cable to the battery and put a digital volt ohm meter (DVOM) on the cable and onto the battery negative post. With the key in the off position, there should be no power, however, if something was to be active, there would be power. If the meter shows up with a small 0.2 voltage, then that is normal. If the voltage is 1 volt or more, then you have a parasitic draw (something staying live draining the battery with no way of charging it).

For the battery to drain overnight, there has to be a voltage of 5 volts or more present. The way to check this is remove one component at a time. For your radio that is not working, remove the power wire to the radio and if the voltage drops to 0, then the radio is the problem. If the radio is not the problem, continue unplugging one thing at a time until the meter reads 0. Then fix that part to keep your battery from draining. If you need further assistance troubleshooting your vehicle, then seek out a technician, such as one from YourMechanic, that can assist you with your battery issue.

i have new battery new battery clamps and cables, new strter cilanoid and no power
ANSWER : Hello, thank you for writing in. If you are not able to get the starter to turn over or make any noise what so ever, then you need to start by checking the power supply to the starter solenoid. If it has a full 12 volt power supply available, then you are having either electrical or mechanical issues with the starter or the new solenoid. It may even need to be shimmed so that the gears are aligning correctly. If you do not have a full 12 volts available at the starter, then you need to trace down the electrical fault. You can start at the battery or the starter, and trace back until you find where the voltage from the battery drops off. There in lies your problem. For more help with this testing, contact our service department to schedule an appointment.

Battery went dead. Replaced battery. Engine and battery lights are on.
ANSWER : Hi There,
As you know, your problem may be related to a faulty alternator resulting from it not properly charging the battery. This may also be related to a faulty voltage regulator. The voltage regulator regulates the rate at which the alternator charges the battery. When this is not working properly, this may allow the alternator to over or under charge the battery, in either case resulting in the battery failing prematurely. I would recommend having an expert from YourMechanic come to your location to diagnose your charging system.

We have a new battery, new alternator, new coil pk, new master fuse and the car still won’t hold power.
ANSWER : Hi there. The only thing that I could think possible is causing your problem is that something may not have been correctly installed while your son was completing this maintenance. However, if your engine was difficult to start before this service, it’s possible there are different components that are damaged that simply didn’t resolve the issue. The only way of knowing what is going on with your Trailblazer would be to have one of our mobile mechanics in your area come to your location and complete a car is hard to start inspection.

Has new alternator, new battery when started , motor dies when battery is disconnected…my mechanics are stumped on this
ANSWER : Hello.

If replacing those particular components did not correct the issue then the next thing I would look at is the vehicle’s voltage regulator. It appears that this engine’s electrical system is equipped with an external voltage regulator that functions, or malfunctions, independently of the alternator. The voltage regulator regulates power from the vehicle’s alternator, and can cause issues with the electrical system when it malfunctions. I would test it to see if it is functioning properly. It is a silver box that should be mounted somewhere in the engine bay, usually on a wheel well. A technician from YourMechanic can come to your home or office to replace your car’s voltage regulator if necessary.

Regards,
Eduardo

It cranks doesn’t start new batteries, oil pressure switch new pmd, new injection pump. new alternator, new glow plugs.
ANSWER : Hello.

A crank but no start condition can be caused by many things. A few common causes are a faulty crank position sensor, or issues with the fuel system. The crank position sensor is used in the engine’s fuel calculations, and in some cases it’s failure will disable the engine.

It may also be possible that there is issues with the fuel system that are preventing the engine from running. If the fuel pump or injectors have an issue the engine may not run correctly, or at all. It may also be possible, for either case, that the issue may be wiring related.

I would start by trying to determine if the engine is getting fuel and then going from there. If you need assistance with these checks, consider YourMechanic, as one of our mobile technicians can come to you in order to diagnose your starting issue firsthand for an accurate repair.

I put a new battery in my van went to crank it up and its completely dead. Do i need a new alternator?
ANSWER : This may be a sign of a failing voltage regulator, a failing alternator or possibly a bad ground connection. As you may know, the alternator is responsible for charging the battery while the engine runs by generating amperage and recharging the battery while the engine turns the alternator. The voltage regulator is a unit that regulates the charging of the battery by the alternator. Often times this will result in the alternator allowing too much power to be delivered to the battery resulting in damaging wires and prematurely sometimes destroying the battery. In other cases it may result in the alternator not supplying enough power to the battery, resulting in undercharging the battery or not charging it at all. In either case, I would recommend having an expert from YourMechanic come to your location to diagnose your vehicle’s charging system.