Battery charging circuit on 7"
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.
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Comments
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.