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The ideal car battery voltage range will provide you with a relevant interval according to which you can measure precisely what the voltage says about the battery’s current charge. A perfect voltage (without any devices or electronic systems plugged in) is between 13.7 and 14.7V.
Car battery voltage 12 volts is the standard automotive battery in today’s vehicle and each of the battery has 6 cells with a voltage of 2.1. A fully charged car battery has 12.6 volts.
Battery Testing & Maintenance. Overview; Testing & Voltage; Battery Maintenance; Seasonal Care; Battery Storage; Car Battery Testing & Voltage. It’s important to test your battery and electrical system regularly, not just when it’s starting to show signs of weakness.
A specific gravity of 1.269 means that the battery is fully charged. A reading of 1.229 indicates a 75% charge, 1.194 is a 50% charge, and 1.159 is 25% charged. 1.124 means you have a dead battery. Performance and capacity load test. This type of car battery test measures the ability of the battery to produce current.
A fully charged 12 volt automobile battery will read 12.6 volts with a digital volt meter. It will read 12.4 at 75% charge, 12.2 volts at 50% charge and 12 volts at 25% charge ….
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