Late to the game. Did some research.
I like the Electrodacus for several reasons. It's an interesting BMS. However, it's use as a solar charge controller is absolutely, positively not one of them, though the diversion option is "neat"
Reference:
http://solarhomestead.com/the-evolution-of-the-solar-charge-controller/
Four generations of charge controller technology:
- Shunt type - short panels to battery and divert to a shorted circuit when battery full, i.e. panels either shorted to battery or shorted to themselves.
- Relay type - Same as above, but the PV is open circuit rather than shorted to itself.
- PWM - like #2, but done via solid-state and hundreds/thousands of times a second allowing for true battery voltage regulation.
- MPPT - DC-DC converter that optimizes PV input power by finding optimal voltage and current to maximize battery charging output power - the only option that will ever permit a given panel to perform near it's true maximum possible power.
The Electrodacus appears to be type 2 thus utilizing none of the charge controller technology developed in the last 25+ years or so. PWM and MPPT will outperform it significantly.
I'm very much not impressed. If someone tries to tout it as an efficient charge controller better than any other technology, they are either deliberately misleading you, or they are misinformed.
However, using it as a BMS to signal chargers/loads to shut off - win.