WebMay 9, 2011 · When it's charging off the battery charger, there's 14.1V at the terminals. But, when the charger is removed, the battery holds a charge of 12.8V. The alternator on the car also delivers 13-14V while running. But the battery only charges to 12.8 or so. Feb 2, 2010. WebA normal car battery voltage can't really be too high (by itself). It's just the basics of the electrochemistry involved in how a cell/battery generates a voltage. But of course the car's charging circuitry can be putting too high a voltage across the battery. This will eventually damage it and reduce its lifespan.
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WebNov 23, 2024 · For example, the CTEK MUS 4.3 charges at 14.4 V normally. However, if the "cold weather" charging mode is chosen, then it increases the charging voltage to 14.7 … In case your voltage drops at idle, it means that your alternator is not charging the battery properly. This can be caused by several things, like a bad connection or a problem with the alternator itself. The battery voltage at idle should be around 13 or 14 volts. If it’s lower than this, there is probably a problem. See more There are a few things you can do to fix the battery gauge going up and down. First, make sure that your car’s battery is properly charged. If the cells are discharged, they will … See more If your voltage is jumping, it could be due to a few different things. First, check the battery. Make sure that it’s properly charged and that the connections are clean and tight. Second, check the alternator. The … See more Several things could be to blame if your battery voltage is not as high as it used to be. The low voltage may result from the battery cells being … See more No, your battery voltage should not fluctuate. If it does, there is probably a problem with your car. Battery voltage fluctuations mean that your car’s battery is not being charged … See more family doctors hendersonville
Need advice - Battery voltage fluctuating from 12.0V to 14.0V
WebNov 19, 2024 · Car battery voltage must be above 12.2 volts to operate properly. If the voltage isn’t within spec, perform a voltage drop test to determine the condition of the … WebFeb 6, 2024 · A car battery contains six cells, each with a voltage drop of about 2.1 volts (2.1 V). And that's why a fully charged new car battery has a voltage drop overall of about 12.6 volts. All batteries love closed circuits. Voltage is always lower at the negative end of a battery than at the positive end. WebAug 22, 2016 · The voltage fluctuation you are seeing is normal. The alternator regulator detects what is needed to run the engine and to charge the battery. The voltage should … family doctor shortage newfoundland