Aside from the fact that this module was potted in sand with a thin layer of resin on top, the circuitry is rather minimalist too.
I was expecting something a bit more sophisticated for the battery charging than a diode.

The other shunt circuitry for the lighting circuit is also a bit strange. I know it's fairly common to use shunt regulation on bike alternators, but it seems to me that it will result in excessive heat from the alternator or at the very least, an extra load on the engine.

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