MPPT stays in Bulk, not going into absorption nor float

[pwfarnell]

The SmartShunt SOC going prematurely to 100% is well.known and can be sorted out to stop this happening, it is usually because the “charhed voltage” setting in the SmartShunt is too low. See

Battery monitor jumping to 100% or reporting a high SOC with low Volts / the BMS shuts down

This topic covers the reported SOC being out of sync with the actual battery voltage or state. It covers BMV battery monitors, SmartShunts, Lynx BMSs and Lynx Shunts and will just be called shunt below. It is also assumed that the shunt is monitoring the domestic / house / cabin battery bank and not engine start / bow thruster / winch / caravan mover battery banks. The problems may be one or more of the following and is often linked to mobile applications with small solar systems. The SOC jum…