I have an AC500 connected in a daisy chain in this order: AC500 to B300K to B300 to AC230. It is an extra set-up in my back office/bedroom, because I had them laying around. The AC500 to B300K to B300 work fine. For some reason the B230 does not seem to work directly from the AC500 in parallel with the other two (B300K and B300) in the extra battery extension port. So, I read it should be daisy chained. I daisy chained it as states above, and it never seems to take a charge. I used a P090A to P090A cable. How can I connect these 3 batteries in series or parallel so they all work correctly?