5. Disconnect the terminals of the power wires from the battery poles. The power wires should be disconnected from the battery at least two hours before performing a voltage test.
6. Connect a voltmeter to the battery terminals and check the voltage.
Evaluation of the received testimony
12.5V or higher - battery condition is good.
12.4V or less - battery condition is poor. Charge or replace the battery.
7. Connect the power wire terminals to the battery.
Attention! After connecting the battery, activate the power window control unit, set the clock and enter the code into the radio.
Battery test under load
8. Attach a voltmeter to the battery poles.
9. Start the engine and read the voltmeter. When starting the engine, the battery voltage should not fall below 10 volts (at an electrolyte temperature of about +20°С).
If the battery voltage immediately drops, and the cells have different electrolyte densities, then a battery malfunction can be assumed.
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