25
D+ H/L
Connects to D+ signal at smart alternator.
If ACC or D+ signal is in high level, please connect to D+ H.
If D+ signal is in low level, please connect to D+ L.
When both alternator and auxiliary battery are well connected, the built in
booster charger will automatically judge if engine is turning on by detecting
D+ signal or sensing alternator output voltage, to decide to charge the battery
or not.
ACC/D+ AND voltage
meets the threshold
voltage meets the
threshold
no ACC/D+ OR
voltage meets the
threshold
voltage meets the
threshold
Table 3-3 Charging logic for 12V system
Table 3-2 Charging logic for 12V system