Can A Sound System Drain A Car Battery. Answer 1 of 8. My mechanic did a parasitic load test and found that my aftermarket stereo was responsible.

Can a starter drain a car battery. Check that you have good connections to ground - a 1000W amp can draw a lot of current. After disconnecting the battery a few times and alarm stopped going off and the car started.
Assuming you are talking about a car stereo and assuming a real 1000W of amplifier output to the speakers and ignoring any efficiency losses we are already at 2000W input pow.
My mechanic did a parasitic load test and found that my aftermarket stereo was responsible. Here are the 5 most common things. Does this sound like the alarm might be draining the battery or is it likely something else. Atomicbird July 4 2016 1014pm 1.
