Q: Battery draining.

asked by on January 13, 2016

My battery is draining overnight.

Battery Replacement $247.05 - $377.49 Get a Quote
Battery will not hold a charge Inspection $94.99 - $114.99 Get a Quote

Either your battery is due for replacement or you have a parasitic draw somewhere. A draw can be found by placing an ammeter in series with the negative battery cable. If excessive current draw is found, the cause of the draw must be determined. A trained technician, such as one from YourMechanic, will be able to diagnose and repair this problem for you.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing


Experienced Mechanic?

Earn up to $70/hr

What others are asking

Why Can’t I Top Off the Gas Tank?
The inability to top off your gas tank may be the result of the car's design or may be an indicator of an obstruction in the fuel fill neck of your car. When you put fuel into your gas tank,...
What Advantages Are There of Rebuilding an Engine Rather Than Replacing It?
When you are looking at the question of whether you should rebuild or replace a motor, you will first have to assume the original motor is rebuildable. If you do not know if your engine is rebuildable then the engine...
how thin can rotors be before replacing?
Nothing sounds right about that. There are references that tell mechanics how thick rotors are when new, when they're too thin to machine, and when to discard. The rotors need measured with a micrometer to check this. Rust and some...
think i put wrong oil in car went few miles lose power car dies oil in spark plugs still starts low oil blinking light before die.
Hello. If you put too thick of an oil (https://www.yourmechanic.com/article/why-does-motor-oil-viscosity-matter) in the car, then you may have damaged the engine bearings but this should not have caused oil to get in to the spark plugs unless the oil got into...
I just had the harmonic balancer replaced and now the car is overheating.
Most likely the harmonic balancer is not the reason for why the car is overheating. It is more likely something to do with the cooling fan or a part of the cooling system, such as the thermostat. I recommend having...
My car is cranking but not starting - 2003 Chevrolet Malibu
Hi there. If you've kept the vehicle in storage for five years and it was not started during that time, it's possible that the fuel inside the tank has gone bad. Gasoline, like anything that is refined for use, has...
It's making a loud rattling like noise when I'm shifting out 2012 Chevrolet Cruze
Hello - the "rattling noise (https://www.yourmechanic.com/question/rattling-noise-by-tony-l)" you describe could be coming from several components - driven by engine vibration, or by worn bearings in the transmission. Vibration can also cause unrelated components bolted to the engine or chassis itself to...
Transmission shifts extremely hard from first to second gear.
Hi there. The transmission is shifting very hard from 1st gear to 2nd gear for the accumulator spring or piston is broken. The accumulator is designed to cushion the shift and allow the transmission to ease into the next gear....
hard start in the morning
Hello there. I appreciate you sending this question today. However, without knowing what model of BMW you have, and the mileage on the vehicle, it's very difficult to give you an accurate idea as to why your car is hard...

Related articles

How Can I Tell If My Car Battery Needs Replacing?
There There are few things more frightening than hearing buzzing or clicking from your car when you’re trying to start it. It could mean any number of things, but chances are that it means you have a faulty car battery....
2005 Jeep Wrangler vs. 2005 Chevrolet Blazer: Which One Should I Buy?
Sport SUVs are a class all of their own; these vehicles are meant for a fun drive through the woods and across the trail – but not necessarily to Grandma’s house! Think instead about going through the creek and through...
How to Replace a Car Battery Temperature Sensor
The battery has a battery temperature sensor that can fail if the Check Engine Light comes on, the battery voltage is low, or the RPM curve surges.