Hello Womo friends! I’m on my way to Sweden and got my Lifepo cells shortly before departure. Then 2 days balanced and 50 % charged. That’s all I could do because of the time. During charging I could start the Daly 4S 120A BMS and monitor it using Bluetooth, set parameters. After that it didn’t work in the vehicle. Also not with charger or power supply as described. On-off a switch I unfortunately have no. What can it be, h at someone an idea? On the battery are current 13,2 V and each cell has 3,328 V on, are all almost the same. I’ve been traveling for 4 days without BMS, running. But would like to use it. Vl. can help me, thank you. Greetings from Sweden, Daniel