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System voltage recognition
1.Battery voltage range: 8-32V
2. Battery system judgment:
12V battery system: Lead-acid batteries (including AGM, GEL batteries, Flooded): <16V.
Lithium battery (lithium ion and LiFePO4) : 8-16V
24V battery system: Lead-acid batteries (including AGM, GEL batteries, Flooded): <32V.
Lithium battery (lithium ion and LiFePO4) : 16-32V
3. If the connected battery is not within the voltage range, all indicators LED flash once per second
Power-off memory function
The historical data stored by the host will remain unchanged after power-off
Key Function
1. Only connect battery and load, the controller is in the standby state, press and hold the button
for 2 seconds, the controller is turned on, The buzzer will beep once, and the load output
and external devices can start to work. If you press and hold again 2 seconds, the controller
is turned off
2. When the solar panel, battery and load are connected normally, the controller
automatically starts charging, Short press the button to switch the load normally.
Long press key function is invalid
Battery over discharge, turn off the controller
When the controller is over discharge, the load is turned off. Turn off the
controller after 1 minute. When the controller resumes charging, the controller will
automatically turn on. After the voltage rises to the load recovery voltage, the load can be turned on again.
MPPT charge
The maximum power point tracking (MPP) charging technology can effectively improve the charging efficiency of solar panels.
Compared with PWM charging, it can improve 10-30% charging efficiency
Indicator LED status
"PV Reverse"(Red)
"Battery Full"(Green）
">80%"(Green）
"MPPT"(Green）
"Batt. Low"(Yellow）
"Load"(Red）
ON: The solar panel is reversed
OFF: The solar panel connect is normal
ON: Battery Full
OFF: Not Full
ON: Start constant voltage charging
Flash (1 time/s): controller over-heat
Flash(2 times/s):Battery or PV over-voltage
ON: Charging
Flash(1 time/2s): no charging
ON: Battery voltage low
OFF: Battery voltage normal
OFF: Load output normal
OFF: Battery low-voltage protection
Slow flash: Manually turn off the load(1 time/s)
fast flash: Load overload or short circuit(1time/0.5s)
Key
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