I currently have one SK12V100 installed in my RV. I want to add a 2nd battery with bluetooth (SK12V100H). Can I mix these batteries and have the bluetooth and BMS work well together?
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Add SK12V100H with SK12V100
Add SK12V100H with SK12V100
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Sorry, I also meant to add that the bluetooth only reads the "H" battery. It gives no information on what the non "H" battery is doing.
I had the same issue arise as I was sent the "H" model by mistake and I already owned the non "H" model. (mine were the 206 size). I made contact with Current Connected LLC (they are authorized sales and service for the SOK batteries), asking the same question as you have, and I have copied below their response to me. I only planned to hook the two up in parallel.
CC LLC response:
The batteries are still 100% compatible with each other in parallel. If you are using them in series, you will need a Victron Battery Balancer - which is standard practice if you use heater or non-heated batteries to keep them in balance. Sorry about the mix up, but glad you got an upgrade! :)