Hi Chris. I would like to volunteer as a tester for your Bluetooth dongle. I have an SG-200 installed two months ago on my 2013 Jeanneau SO469 sailboat with 5 new firefly batteries as a bank. I also updated my 125amp Valero alternator with the Balmar external MC614 regulator kit. I live in Virginia Beach and plan on sailing a good bit over the summer here. I use an iPhone 8 and a fairly new iPad on the boat. If this setup meets your testing needs I can be reached at 7574600249 or via message here. The site didn’t allow me to post my e mail address in this message.