SarDoX said:honestly - I have no clue how to make it charge without opening the board and disconnecting the circuit
2*4s lipos and in series, to charge them I need to plug them to parallel charging board, disconnect stabilizing wires from low voltage meter and also plug them in parallel charging board..
there will be so many extra wires and connectors...
Just a put charging port (deans connector for plus /minus and a 8s parallel cable). Then buy a 8s charger on eBay..
I've done the same on my scoots. Works perfectly.
https://endless-sphere.com/forums/viewtopic.php?f=35&t=55997
Or just fit a BMS (battery management system)