Car Battery Amp Draw. In other words a car battery drains when it is not charged enough which is a common problem when using powerful amplifiers. How Long can a Car Battery Power a Window Fan.
Put a lower rated CCA battery on an engine that is rated higher CCA and youre in for problems as it will overload it. Connect the black wire from your multimeter to the port listed as COM Connect the red wire to the 10A20A input port on your multimeter. The same battery discharged at.
I took the car to Pepboys for a parasitic draw and they could find nothing except tell me it was prob the amp being as its the only thing large enough to drain my battery that fast.
Bought a new battery and things were perfect for a week then another dead battery last night after work. Be sure to close all doors turn off the radio and disconnect accessories such as smartphones and add-on GPS devices. Check for battery drain. In my case it was the key lock light staying on and the door lights or rather door light relays staying on.
