Welcome Heinz 
Are these US3000A/B or US3000C?
Do you have or can you get a cable to connect to them?
(the cables for connect to A/B and C are different)
Software that you need is BattView (I’m sure you can google it and find it somewhere, or maybe @JacoDeJongh @plonkster can assist )
Edit:
Here something to start reading