I have been using Smart battery sense a little over a month together with a MPPT 100/20, Smartshunt 500 and Cerbo GX. Smart Battery sense is located on top of my 100Ah Lifepo4 battery and transmits the battery temperature to the MPPT unit which is 2 meters away from the battery compartment.
Everything was working in harmony until yesterday. The weather was perfect and sunny but the MPPT wasn't charging my battery. After spending some time, I realized that the SBS was reporting a temperature of -18*C. Of course, MPPT was not sending any amperes to the battery in order to protect it. However, -18*C couldn't be true as I had access to another temp device in the trailer which was reporting +23*C. I was checking this remotely via VRM.
Today, when I came close to my trailer, I noticed that the SBS was reporting the temperature correctly, +12*C. However, when I enable the Bluetooth on the MPPT, the temp value received by the MPPT is still showing -18*C. Maybe, SBS needs an reset or a power recirculation but I wanted to share this here to ask if any of you had a similar experience.
I will appreciate your kind assistance