Battery bank led indicator when charging 220V

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spigai.pietro

Joined Jun 8, 2017
1
I am building a portable battery bank with x16 18650 (12v, 18Ah)
I would like to light up a yellow led when the battery is charging from 220v and another green led when the switch is ON.
The problem is that the PCB uses the same connections for input and output current so my yellow led lights up also when I am not charging the battery (and the switch is ON). I hope it makes some sense to you guys.
Thanks for any help.
Pietro
 

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