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Plane-Power vs B&C (2019) also: Parts info wanted

Charging amps

With an external regulator as the BC, the charging amps is a function of
the difference between bus voltage and the set charging voltage.
The bus is connected to terminal 3 sense on the BC regulator.
With a rheostat on terminal 4 you can reduce field voltage to the alternator.
This way the charging current can be limited to your specification.
A timing circuit can be added if desired.
https://bandc.com/wp-content/uploads/2020/11/lr3d_dgm_rev5-20.pdf

Good luck
 
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BC external regulator uppdate

Terminal 1 – This input, when used with the optional temperature probe, will enable the LR3D to
automatically adjust the alternator output voltage as the temperature of the battery terminal
changes. Because the ideal charging voltage for a battery is dependent on battery temperature,
some operators may desire a higher charging voltage during winter operations and a lower
charging voltage during summer operations. While this can be accomplished by manually
adjusting the voltage regulator, the intent of this feature is to make the adjustment occur
automatically from one season to the next. In practice, the vast majority of installations do not see
a wide enough swing in battery temperature to justify the added expense and complexity of the
temperature probe.
 
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