OWNERS MANUAL
7
OPERATION – CHARGING
Level 1. Soft Charge:
When a battery has been over-discharged, the controller will softly ramp up the battery
voltage to 10V
Level 2. Bulk Charge:
Maximum current charging until the battery rises to absorption level
Level 3. Absorption Charge:
Constant voltage charging until the battery is over 85%
Level 4. Equalization Charge:
Only for WET or Calcium battery types and when the battery is deeply drained below
11.5V. It will automatically run this stage to bring the internal cells to an equal state in an attempt to
restore lost capacity. (GEL and AGM type batteries do not run this equalization charge)
Level 5. Float Charge:
Battery is fully charged and maintained at a safe level.
OPERATION – LED INDICATION AND FAULT CODES
Level 4
Level 5
Level 3
Level 2
Level 1
Three LED’s indicate the
charging status & fault
connection
FAULT
CHARGE
FULL
Red
Blue
Green
Solar power present -
no battery connected
ON
SLOW Flash
SLOW Flash
Battery reversed
ON
FAST Flash
FAST Flash
Solar panel reversed
OFF
OFF
OFF
Soft start charging
OFF
SLOW Flash
OFF
Bulk, Absorption,
Equalization charging
OFF
ON
OFF
Float charging
OFF
OFF
ON
Solar panel weak
SLOW Flash
OFF
OFF
At night, no charge
OFF
OFF
OFF
