Hello everyone! 
I would like to insert a board, the sx550j, in a self-built box that I will power with a type 2s battery.
This board would allow you to recharge the two batteries via USB3 cable in a balanced manner. My problem is that I can not find on the board where to connect the "balance line for charger".
Connecting the USB cable I find 8,2volt between the + and the -, so I could load the two batteries in series, but it is a solution that I prefer to avoid; rather I would insert an unaesthetic 3-pin socket to load externally as is used to charge the 2s batteries.
But I hope that there is someone who can solve the mystery and avoid a hole that I would not like to do.
I think that the thinner white cable is an antenna for Bluetooth.
I thank you in advance for your courtesy!
I would like to insert a board, the sx550j, in a self-built box that I will power with a type 2s battery.
This board would allow you to recharge the two batteries via USB3 cable in a balanced manner. My problem is that I can not find on the board where to connect the "balance line for charger".
Connecting the USB cable I find 8,2volt between the + and the -, so I could load the two batteries in series, but it is a solution that I prefer to avoid; rather I would insert an unaesthetic 3-pin socket to load externally as is used to charge the 2s batteries.
But I hope that there is someone who can solve the mystery and avoid a hole that I would not like to do.
I think that the thinner white cable is an antenna for Bluetooth.
I thank you in advance for your courtesy!
