How many amps does a battery draw?
How many amps does a battery draw?
Most vehicles draw some battery current when the key is off, thanks to the clock and the internal memory of engine computers, body-control modules, and radio presets. Altogether, they draw a very small amount of current. Fifty milliamps would be a safe upper limit for this, though many vehicles will draw less.
What’s the normal battery draw on a GM car?
About .5-1 amp will kill a battery over night. Normal draw on most GM vehicles is .050 and spiking to .150 amps when onstar checks in. The big problem comes when modules start waking up. That can cause a quick spike to a 6-10 amp draw. The BCM watches for current flow. When the BCM wakes up all the other modules do to.
Why does my Chevy Silverado battery drain while driving?
If it is draining while your Silverado is off, it’s usually caused by something that is drawing current that shouldn’t be. If the battery is draining while you’re driving, that is probably going to be the alternator or battery. There are other situations as well.
What causes a car to draw power from the battery?
Learn more… If your vehicle is drawing power from the battery and all of the lights and other electrical components are off, you might have a parasitic battery drain (or draw). Luckily, you can usually find the cause of a parasitic draw yourself. Start by connecting a digital multimeter to the negative battery terminal of your vehicle.
What to do if your Chevy Cruze battery is draining?
If you didn’t see a battery light, and now the vehicle is dead when you go to start it, the first thing that you need to look at is the battery. You can take it up to the local parts store and have it tested.
How to drain a battery on a GMC Truck?
With key off, unhook your positive battery terminal. Put one multimeter lead on the battery terminal and the other on the positive cable. You’re basically making the multimeter part of the circuit. Set the meter to read amps. Now, since its being drained I assume you’ll see some kind of amperage draw.
About .5-1 amp will kill a battery over night. Normal draw on most GM vehicles is .050 and spiking to .150 amps when onstar checks in. The big problem comes when modules start waking up. That can cause a quick spike to a 6-10 amp draw. The BCM watches for current flow. When the BCM wakes up all the other modules do to.
Is there a problem with my Chevy truck battery?
Truck is still driveable, just no gauge info. Work is guaranteed. There are a bunch of outfits rebuilding these on ebay and various other sites, so it must be a big problem with the clusters. I had a similar problem with the battery draining. Spent hours and hours researching it, more hours trying to diagnose.
Learn more… If your vehicle is drawing power from the battery and all of the lights and other electrical components are off, you might have a parasitic battery drain (or draw). Luckily, you can usually find the cause of a parasitic draw yourself. Start by connecting a digital multimeter to the negative battery terminal of your vehicle.
