Warning
Connecting SB201-1 in a SB200 with Cell2 mounted will result in the destruction of tracks as PV2R and PV1R is shorted through a 0Ω resistor (R9) on SB201-1. Make sure you use correct board with correct number of cells.
The resistor (R24) connecting the PV2R and CELL+ should be removed on SB201 to facilitate correct current measurements through the jumper position, as otherwise some of the current may flow through the PV2R connection.