Q: how do I install a load resistor so that my alternator doesn't drain my battery

asked by on

My car for some reason won't keep charge. So I got a brand new alternator and battery but the battery still ends up getting drained of power and my car just shuts down. To solve this I was told I can install a load resistor. I don't know how. Part of it is installed but I don't know wht to do with the other end that has nothing connected.
My car has an automatic transmission.

I’m not sure what you were told but a load resistor will only drain your battery and charging system more. It sounds like you have a problem in the charging system not providing enough power for the electrical load you have put on it. From what you’ve described, you may have a massive power drain like a big amp or a radio and amp setup that is using up more power than the engine alternator can handle.

I’m not completely sure but I think what someone was telling you to get a capacitor bank to power the amp you have. This will help store extra power for the times the amp bass needs more power. This component will not allow the amp to take power directly from the battery. You should look at getting a higher capacity battery and alternator for your car if this is the case to go along with a capacitor bank.

I’d suggest getting this looked at by a qualified technician, such as one from YourMechanic, who will be able to diagnose your draining battery and help you fix it accordingly. Good luck.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. how do I install a load resistor so that my alternator doesn't drain my battery

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

Get a quote

What others are asking

Q: My 2005 Saturn vue is starting to have high rpm's while driving

Hi there, A number of things may cause this to happen, but it sounds like your vehicle may be a bit low on transmission fluid or you may potentially have a bad transmission control solenoid. As you know, the transmission...

Q: Engine Light coming on after spark plug change

You may have a vacuum leak from a broken line, loose hose to the air box, or another type of leak. A diagnostic inspection of your Check Engine Light from a qualified technician, such as one from YourMechanic, can help...

Q: huge oil leak honda accord

The flatness of the block (and heads EVEN if they are "new") has to be measured. If the block was warped, that is if the block is not perfectly flat across the entire surface to within .002 inches, the assembly...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...