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47
February 2020
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Solar Stik
®
, Inc.
System Setup and Operation Manual for ATSC MS3 L0
H Monitoring the Charging Status on Power Hub
Bulk Charge:
During Bulk mode, the charge controller can deliver full output to recharge the
Expander Paks rapidly and drive voltage up to the acceptance charge voltage setpoint. This stage
typically takes the battery to about three-quarters of full charge and at a rate that usually does not
exceed 25% of the battery’s amp hour capacity. This is also known as the “constant current phase”.
Acceptance Charge
: In this stage, the charge current gradually decreases as the batteries obtain
full charge. It is also known as the “constant voltage phase”. With the Li Expander Pak 2400, the
acceptance charge phase is not necessary.
Float Charge
: This final stage compensates for the battery’s self-discharge and temperature.
Temperature and Power Output:
The Power Hub charge controller charge controller can deliver
full output in an ambient temperature of up to 40 °C (104 °F). If an overtemperature condition exists,
the charge controller will cycle on/off, reducing average power delivery to within safe limits. During
thermal shutdown, the charge status indicator will display an OFF condition.
Charge status LED
Charge Mode
Off
Charge Off
Continuously On
Bulk
Blinking – 1 second On / 1 second Off
Acceptance
Blinking – 0.2 second On / 1 second Off
Float
Blinking LED indicates charge
control operation status
Table 1. Charge Status Indicator—LED Status
Figure 26. Power Hub User Interface
