Victron Energy SmartShunt 500 amp Battery Monitor (Bluetooth)

Bought this to monitor usage and SOC for my lifepo4 battery in my RV. It does that, but has a few problems. First, the bluetooth range is about 4 feet. Any further away and it can’t connect. 2nd, if you disconnect the battery, it has to be recalibrate at full state of charge or you no longer get the state of charge info.

https://www.amazon.com/Victron-SmartShunt-500AMP-Bluetooth-Battery/dp/B0856PHNLX