Important safety instructions (Please keep this handbook for future
reference. Please read all instructions and precautions in the manual
carefully before installation.)
This manual contains all the safety, installation and operation instructions of this
series solar charge controller (hereinafter referred to as "controller"):
Install the controller in a well ventilated place. The controller’s case temperature may be very high
during operation. Please don’t touch the metal shell directly to prevent burns.
It is recommended to connect fuse or circuit breakers to the input, load and battery terminals to
prevent electric shock hazard during use.
After installation,check all wiring connections are secure, so as to avoid the danger of heat build-up
caused by virtual connection.
If the controller does not display properly when first use, please cut off the fuse or circuit breaker
immediately and check whether the wiring connection is correct or not.
If the solar system needs to connect the inverter, please connect the inverter directly to the battery,
instead of the load terminal of the controller.
Don’t disconnect the battery when the controller is charging. Otherwise, it may damage the DC load.
System Voltage and Battery Types
1)The controller identifies the system voltage according to the battery voltage at start-up.And the controller
will re-identify the system voltage after power-off and restart. Please confirm the system voltage displayed
in controller is consistent with the actual voltage. Otherwise, need to recheck the battery pack voltage.
Note: Please refer to Table 9 for the battery system detailed system identification voltage.
2)The controller has set 3 kinds of conventional battery charging parameters (Table 1) . To charge other
types of batteries, please select “USE” , then set up by PC software or APP. To charge lithium battery ,
please select “Lit”, then set up on the controller, APP or PC software.
Constant voltage
= C*N（V）
Floating voltage
= F*N（V）
1. C = Cell’s constant charging parameter.(9≤F<C≤15)
2. F = Cell’s floating charging parameter.(9≤F<C≤15)
3. N = Series number of battery.
[e.g. N=2,battery system is 24V]
4. Example:If battery system is 48V,then N=4;If the cell's
voltage C=14.6V, then Constant voltage= 14.6*4=58.4V.
Set the charging and protection parameters
according to the specifications of the
selected lithium batteries.
Cell Specifica tion
Nomina l Voltage:3.7V
Charge Voltage:4.2V
Cut-off Voltage:2.7V
6 cells
in series
Reference Settings
S05 : 2 5.2V
Charge Voltage
S06 : 2 2.2V
Nominal Voltage
S07 : 1 6.2V
Under-volt protection
Table 1 (The MPPT controller can not wake up lithium ion battery.)
Strip Indicator Instruction
User can identify the controller current working status according to the flash rule of thelight. (Red - ALARM,
