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2.Safty Instruction and Waiver of Liability

Dear Clients, 

 

This manual gives important recommendations for installing, programming, using and so on. Read it carefully in your own interest 
please.

Thanks for selecting the 

Smart-MPPT

 

Li 

series solar controller. Please take the time to read this user manual, this will help you to 

take advantage of controller’s new features.

1.Description of Function

Smart-MPPT Li series intelligent MPPT solar controller is 
programmable and especially for solar light system. 
The charging efficiency is about 20% higher than the 
traditional PWM controller, which can make the cost of the 
whole system much lower.

It comes with a number of outstanding features, such as:

Innovative Max Power Point Tracking(MPPT) technology, tracking 
efficiency >99%
Full digital technology, high charge conversion efficiency up to 96%
5 stages time can be adjusted
Can read parameters and running status
When BMS power off because of LVD, it can activate the system 
automatically

 

Charging target voltage and charging recovery voltage can be set
Day/Night threshold can adjust automatically
Remote Unit to configure, with LCD display
IP67, Strong and durable aluminum case
Full automatic electronic protect function
 

 2.1 Safety

 ①The solar charge controller may only be used in PV 
systems in accordance with this user manual and the specs 
of other module manufacturers. No energy source other 
than solar gen. may be connected to the solar charge 
controller.
②Batteries store a large amount of energy, never short 
circuit a bat. under all circumstances. We strongly 
recommend connecting a fuse directly to the battery to 
protect any short circuit at the bat. wiring.

2.2 

③Batteries can produce flammable gases. Avoid making 
sparks, fire or any naked flame. Make sure that the bat. 
room  is ventilated.
④Avoid touching or short circuiting wires or terminals. Be 
aware that the voltages on special terminals or wires can 
be as much as twice the battery voltage. Use isolated tools, 
stand on dry ground, and keep your hands dry.  
⑤Keep children away from batteries and the charge 
controller.

Liability Exclusion

The manufacturer shall not be liable for damages, especially 
on the battery, caused by use other than as intended or as 
mentioned in this manual or if the recommendations of the 
battery manufacturer are neglected. The manufacturer shall 
not be liable if there has been service or repair carried out 
by any unauthorized person, unusual use, wrong 

1.As the chart, connect the load with the corresponding 
red(positive) and black(negative) cables firstly, then seal 
them with tape.  
2.Connect  battery with the corresponding red(positive) 
and black(negative) cables, Load will be on.
3.Connect panel with the corresponding red(positive) and 
black( negative) cables, the controller begins charging 
after 2-30s.
4.Confirm the LED display status: If the green LED is on or 
flashes and the red LED is off, it is normal; 
If the red LED is on or flashes, it means fault, please refer 
to the 

9.2Faults and Alarms

 to identify the reason.

Solar charge controller Smart-MPPT Li series User Manual

The following diagrams provide an overview of the 
connections and the proper order

4.Installation

Page 1 of 5 pages

3.Dimensions

Make sure the wire length between battery and controller 
is as short as possible.
Recommended mini. Wire size: 8/10A: 2.5mm²; 15A: 4mm².

MPPT

④ ①

Y

SMR-MPPT1010/1075/1575 Li

Y

SMR-MPPT0875 Li

Model                                                X(mm)      Y(mm)

SMR-MPPT0875 Li                             81             23.1

SMR-MPPT1010/1075/1575 Li        145            30

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