www.e-stim.net

Heyho,

i use my 2b with batteries. But as soon as i use both channels at the same time, not even at high power settings, one channel drags the power of the second one down...

Yes, that is quite normal. Read this thread, "Running out of power" - viewtopic.php?f=14&t=9616

...and this thread, "2B with power supply vs battery?" - viewtopic.php?f=14&t=9708

Thanks

Hi tobjac,
try it with power supply if it is the same.
how are you wired there. maybe it's because of that.