What's Draining My Car Battery Overnight. Then remove the fuses one at a. Disconnect all the.
Touch the positive terminal clamp with your RED plug from the digital meter. Engine operation problems can also cause excessive battery drain during cranking. Car batteries lack this alloy since they were never designed to go under a deep-discharge.
Bad or shoddy wiring can create a drain that would require a mechanics inspection as well.
A short circuit may cause excessive current draw and drain your battery. As you can see the problem is not always an obvious one. Faulty Charging System. Cooling fans power seat belt retractors radios and convenience lights left on alarm systems door locking systems and electric car antennas have also caused batteries to drain overnight.
