Battery Health Unraveled Battery Tester's Role in Detecting Fluctuations

Short drives are normally a cause of battery/charging issues and so you are not fully charging the batteries. Hence the system charging voltage ... 1v while the truck is running, the crossover cable is not allowing the drivers side battery to charge at the same rate. 2005 QCSB, cold air ... Remove the ECU 32 pin wiring harness connectors and inspect the clips and pins for oxidation. The ECU controls the alternator charging rate of ... When I start my car, my volt meter is showing a steady 13.8 volts. However, once the car heats up, or after 10 minutes driving, it drops to 11.9 ... I was driving the other day and the check gauge light came on. My ... while, then voltage drops again, shut off engine, restart, etc. Some of the battery voltage fluctuation might be normal. Check your owners manual about the special feature your truck has that was designed to increase ... The voltage regulator shuts down the alternator as the battery reaches its charge and the gauge gradually drops to battery voltage. When there's ... This sounds like one or more cells in the battery are going South. You need to use LeafSpy Pro to get a depiction of the battery cells and the voltage ... For a new battery that voltage is a bad sign for the battery, like I said charge it and load test it. What brand ... drops to 12.5 while driving ... If it keeps up, then have a FLAPS load test the battery no alternator at RPM you are seeing the fluctuations.