Checking the battery (Focus Turnier 1)

If, despite the correct acid level, the battery seems weak, then check the charge status with a hydrometer. Hydrometers check the concentration of electrolyte in the battery fluid. Of course, you can check the battery with a multimeter (indication accuracy ±0.02 V): based on the measured voltage, the battery charge status is determined.

Measuring acid concentration

Perform the test only after the battery has rested for at least 6 hours.

Unscrew or press the plug in the battery.

Hold the measuring device vertically. Suck out enough acid from the battery so that the measuring rod of the hydrometer floats freely in it.

Measuring acid

Weight of acid (kg/l)	1,28	1,2	1,12
Battery status	Fully charged	Half charged	Discharged

Voltage measurement

If the last charge was less than six hours ago, turn on the fog lights for about 30 seconds. They will smooth out any voltage peaks.

After four to five minutes, measure the voltage on the battery. During the measurement, disconnect all current consumers.

Voltage measurement

Voltage (V)	12.66 (and more)	12,48	12,3
Battery charge status	Charged 100%	Charged to 75%	50% discharged

The hydrometer measures the acid concentration in each individual cell. To measure, suck out enough battery acid with the vertically lowered hydrometer so that the float floats freely. If the battery is in order, the measurement results in individual cells are almost the same.





Measure the battery voltage accurately with a multimeter. If the idle voltage is below 12.3 V, the battery should be charging.

(For more information, please visit the specified website fordbook.ru)