4
CHARGING STAGES
Soft Charge (Level 1)
– When batteries suffer an over-discharge, the controller will softly
ramp the battery voltage up to 10V.
Bulk Charge (Level 2)
– Maximum current charging until batteries rise to Absorption level
Absorption Charge (Level 3)
– Constant voltage charging and battery is over 85%.
Equalization Charge* (Level 4)
– Only for WET battery or Calcium battery type, when the
battery is deeply drained below 10V, it will automatically run this stage to bring the internal cells
as an equal states and fully complement the loss of capacity.(Gel and AGM battery do not run
Equalization charge)
Float Charge (Level 5)
– Battery is fully charged and maintained at a safe level. A fully
charged battery has a voltage of more than 13.6 Volts.
LED OPERATION
Level 1
Level 2
Level 3
Level 4*
Level 5
The 3 LED’s indicate the charging
Fault
Charge
Full
status and Fault connection
Red
Blue
Green
Solar Power Present –
ON
Slow Flash
Slow Flash
No battery connected
Battery reversed
ON
Fast Flash
Fast Flash
Solar panel reversed
OFF
OFF
OFF
Soft start charging
OFF
Slow Flash
OFF
Bulk, Absorption
OFF ON OFF
Equalisation charging
Float charging
OFF
OFF
ON
Solar panel weak
Slow Flash
OFF
OFF
At night no charge
OFF
OFF
OFF
Slow flash = 1 Hz flash, Fast flash = 3 Hz flash
