Why is my car getting low voltage?
Why is my car getting low voltage? Sometimes a weak battery is due to a weak alternator or a parasitic drain on the system. Low voltage can also be caused by poor connections to the battery. Intermittent electrical problems – those that come and go at random times – might be caused by loose or corroded connections. Why is my Mercedes-Benz E class battery not working? If the voltage rises above and/or drops below range, the voltage regulator may be at fault. The voltage regulator is described more closely in Step 4. If you want to monitor each battery's voltage...