"Bought two to connect to the battery hub (88009), but when I do, the hub wont connect to the remote, and it keeps disconnectting and reconnecting (every few second) to the bluetooth app on my phone. However, as soon as I disconnect either one of the motors the hub connects normally. Totally worthless, and nowhere is this noted or warned about as far as I can see! And of course, I can't send one of the motors back, since it's obviously been unpacked."