Battery charging circuit on 7"

sgruby · February 12

Is there any kind of information on the battery charging circuit on the 7" HMI?

How large a lithium battery can I connect to it?

What is the charging rate?

Is there any way to know if the battery is fully charged?

Thanks.

Elecrow · February 17

1.Battery capacity is not limited

2.Charging time = battery capacity (for example 1000MAH)/500MA*1.2=2.4 hours

3.Use a multimeter to measure the positive and negative voltage of the battery when it is fully charged at 4.2V.

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