Can the wrong fuse drain your battery?
a fuse blows to keep current from going through the circuit. in other words, there’s no way a blown fuse can drain the battery. take the battery in to get checked, it might just be a bad battery.
How many amps should a car battery draw when off?
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.
How many amps does a dead battery draw?
The acceptable current draw should be around 0.03Amps. If that can’t be achieved upto 0.075-0.1 can be acceptable if the vehicle is driven most days.
Will Subs drain my battery?
Many people complain that after installing car audio their subwoofer killed a car battery, but is this problem really caused by a subwoofer? So, can an amplifier drain your battery? The simple answer is yes, but a car battery can only be drained when it sends more power than receives back from an alternator.
Can a blown bulb drain a battery?
A blown bulb is an open circuit. Alarms don’t use much juice at all to run. They do draw off your battery but it’s using just enough juice to flash that LED, which is next to nothing, certainly not half an amp.
Is 300 amps enough to start a car?
How many amps do I need to jump start my car? 400 to 600 amps will be more than enough to jump-start any normal, consumer vehicle. Commercial vehicles may require up to 1500 or 2000 amps. Compact and small vehicles can be boosted with as little as 150 amps.
How many amps does a 12v alternator put out?
The output of the alternator ranges from 40 Amp up to 120 Amp. For high-amp alternator, it can generate up to 300 Amp. Most factory alternators are rated at 65 to 100 amps and are capable of handling your vehicle’s basic necessities, such as headlights, gauges, fuel pumps, A/C, etc.
How many amps does a car need to run?
Today’s car takes about 2.5 amps for the injection pump, and just under 2 amps for the instrument panel. A gasoline car would probably have similar draws. If the cooling fan was needed, and electric cooling fan can draw from 10 to 25 amps, usually at the low end of that range.
Can subs ruin your alternator?
Subwoofers on their own cannot damage your alternator. However, subwoofers combined with their amplifier and the corresponding amplifier can damage your alternator if it draws too much power from your battery. And this can cause the alternator to overheat and potentially damage.
Why does my Fuse keep draining my battery?
When i would turn the key all the lights would dim, because of the massive current draw to a bad starter. The current draw to the fuse was actually the computer which takes a while to shut down after you take the key out. thank you once again for all the support. Click to expand…
What is the current draw on a fuse?
Amplifier: completely removed > NO CHANGE. Everything else is factory stock including radio. 1) Hooked up the meter in series to the negative battery cable. Meter reads 7.18 (20mA/10A scale) current draw. 2) UNDERHOOD – If I pull the: #15 40amp fuse labeled “ Back up, ACC” > the current draw drops to 0.48mA (seems acceptable from what I’ve read).
How does parasitic battery drain work on a Dodge Ram?
You don’t do an Amp draw across terminals, you use a CT around the positive cable. He is talking about voltage drop as without the truck running and the power being used the battery’s voltage is going down resulting in a dead battery. Click to expand… What he described doing in the quote above is an amp draw test (parasitic drain).
What to do if your DVOM battery drains?
Remove the negative battery cable from the battery and attach a jumper from the negative battery post to the positive lead of the DVOM meter set to Amps. Next attach a jumper from the negative meter lead to the battery cable.