Anwser:Always follow a strict sequence when wiring up the BMS. Install or solder B- and P- first, then B+ and P+, when the BMS system is powered up. Then simply plug in the battery sampling wires from B0 to B16 in descending order. Note that no load or charger can be added until all 
connections have been installed. The order of removal is reversed: unplug the charger or load first, then remove the battery sampling cable connectors from B16 to B0 in ascending order, then B+, P+ and finally B-, P-.