I don't think this device has the smarts to be programmed. The diode idea sounds interesting, but would represent yet another drop in voltage that would need to be overcome to charge the battery, and they would have to be rated for large power.
I'll try to play with the BMS tonight with a solar panel and see what it can do. The thing I liked about the specs is the extremely low working power draw, so it wouldn't run down a battery that was sitting for long periods of time.
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