LED:
#5 green (double flash)
#5 green (single flash)
#4 blue (double flash)
#4 blue (single flash)
#3 yellow
#2 red & #3 yellow
#2 red
NOTES: A battery's charge level is directly proportional to the voltage measured across the terminals.
Accuracy improves once the battery has cooled to room temperature and has not received further
charge for at least 6 hours or more.
Environment temperature affects voltage, the result will worsen as the temperature falls further below
15°C / 60°F.
Some batteries brands may have slightly different voltage and % charge parameters.
B. CHARGE MODE - LED #1 lights if the solar panel can deliver charge. LED #1 flashes when charge
current is delivered to the battery. Speed of flashing corresponds to current delivered i.e. fast
means high current, slow means low current (cloudy conditions or battery is not accepting high
current).
LED 2, 3, 4 or 5 indicate charge progress whilst CHARGE LED #1 is flashing. If no battery is
connected only LED #1 turns on.
IN
LED ON:
LED #2 (RED)
LED #3 (YELLOW)
LED #4 (BLUE)
LED #5 (GREEN)
10
Voltage:
13.3V +
13.1V - 13.29V
12.7V - 13.09V
12.5 – 12.7V
12.3 – 12.49V
12.1 – 12.29V
Less than 12.1V
Duo
1
CHARGE
Description:
MODE:
SAVE
Battery save mode in progress - battery is deep discharged /
voltage at connection was less than 12V. Max. time: 2 hours
CHARGE &
BULK CHARGE - maximum charge current up to 14.4V
OPTIMIZE
OPTIMIZE - final charge is delivered for minimum 10 minutes.
Charging may continue if the battery requires further
charging. Charge time is affected by strength of sun and size
of battery.
MAINTAIN
The battery is receiving maintenance charge up to a
maximum voltage of 13.6V.
MAINTAIN
The battery is monitored, holding voltage between 13.3V
and 13.6V.
LFP
AGM (or GEL)
75% - 100%
50% - 74%
10% - 49%
91% - 100%
less than 10%
61 – 90%
41 – 60%
20 – 40%
Less than 20%
2
3
4
STD
90 - 100%
61 - 90%
40 – 59%
Less than 40%
Pb
12V
5
OUT
12.8V
LFP