Charging the battery charger is for connecting the battery to the charger, the appropriate amount of time. Battery charging time depends on its capacity, its discharge and current rectifier and charging time. The best and safest charging you choose the appropriate power rectifier. You do not know how to charge a car battery? This calculator will help you achieve the best charging. To select the best time to load it would be a measure of the current check the current battery voltage. Measurement should be performed on not loaded (disconnected from the electrical system of the car) battery. The calculator calculates the car battery charging voltage of 12 V.
Enter the capacity of the battery, select the intensity of the charger (charger), battery voltage (if you know) and press the "Calculate"

Car battery capacity Ah
Car battery voltage (measured)UnknownAbove 12.40 V12.31 - 12.40 V12.21 - 12.30 V12.11 - 12.20 V12.01 - 12.10 V11.91 - 12.00 V11.81 - 11.90 V11.71 - 11.80 V11.00 - 11.70 V V

Select amperage car charger (Marked with a green color is recommended amperage battery charger)

1.0A

1.5A

2.0A

2.5A

3.0A

3.5A

4.0A

4.5A

5.0A

5.5A

6.0A

6.5A

7.0A

7.5A

8.0A

8.5A

9.0A

9.5A

10.0A

10.5A

11.0A

11.5A

12.0A

12.5A

13.0A

13.5A

14.0A

14.5A

15.0A

15.5A

16.0A

16.5A

17.0A

17.5A

18.0A

18.5A

19.0A

19.5A

20.0A

20.5A

21.0A

21.5A

22.0A

22.5A

23.0A

23.5A

24.0A

24.5A

25.0A

25.5A

26.0A

26.5A

27.0A

27.5A

28.0A

28.5A

29.0A

29.5A

30.0A

30.5A

31.0A

31.5A

32.0A

32.5A

33.0A

33.5A

34.0A

34.5A

35.0A

35.5A

36.0A

36.5A

37.0A

37.5A

38.0A

38.5A

39.0A

39.5A

40.0A

Car battery capacity	Car battery voltage (measured)	Selected amperage car charger	Charge time of a car battery
50 Ah	Unknown	5.0A	10 hour