Lithium battery box temps

I use YoLink temp sensors (and leak sensors) in a number of places around the RV. This setup may not be for everyone since it requires a YoLink smart hub and WiFi/internet connection, but we are full-time and have an unlimited hotspot on all the time. The YoLink equipment is very affordable but, if WiFi and internet are an issue, there are plenty of good alternatives for weather units with multiple sensors available on Amazon, or at your local home improvement store. The advantage to the YoLink stuff is that there is a phone app and the hub sends me alerts if there are leaks or if the temp drops below my set point near the water utilities in the basement.

I no longer have a temp monitor in the front compartment with the batteries since I have thermostatically-controlled heating pads on two of them and the two newer batteries are the internally heated ones (all Battle Born).

Rob