Home » Products » Inverter and Charger » SMS Solar Charge Controller
SMS Solar Charge Controller

SMS Solar Charge Controller

Features of SMS Solar Charge Controller:
(1) High converting efficiency higher than 97%
(2) Built-in MPPT tracker is equipped in the power inverter to optimize the power transformation
(3) Reversed current protection for preventing equipment damage
(4) Automatic battery temperature compensation for long-term reliability
(5) The solar charge controller is suitable for various types of batteries for the different charging modes
(6) Capable of connecting additional DC load for wider applications
(7) Three stage charge control system (bulk, absorption, and float mode) with temperature compensation
(8) LED indicators display charge status in real time
(9) Pulse Width Modulation (PWM) topology combined with a multi-stage charge control algorithm leads to superior charging and enhanced battery performance
Yiyuan mainly supplies electric power supply related products like AC inverter or frequency inverter, AVR, UPS as well as transformer etc.; welcome to choose our products for electric power supply.

Technical Parameter of SMS Solar Charge Controller:

Model SMS-40A
Rated voltage 12/24 VDC
Rated charge current 40A
Load current 15A
Input voltage range 15-55VDC
Max. PV open circuit 55VDC
array voltage
Typical idle consumption At idle < 10mA
Overload protection (DC load) 2.0*Inom>5s    1.5*Inom>20s
1.25*Inom temperature controlled
Bulk charge 14.6V (default) 29.2V (default)
Floating charge 13.4V (default) 26.8V (default)
Equalization charge 14.0V (default) 28.0V (default)
Over charge disconnection 14.8 V 29.6 V
Over charge recovery 13.6 V 27.2 V
Over discharge disconnection 10.8 V (default) 21.6 V (default)
Over discharge reconnection 12.3 V 24.6 V
Temperature compensation -13.2 MV/℃ -26.4 MV/℃
Lead acid battery settings Adjustable
NiCad battery settings Adjustable
Load control mode Low Voltage Reconnect (LVR): Adjustable
Low Voltage Disconnect (LVD): Automatic disconnection
Reconnection: Includes warning flash before disconnect and reconnection.
Low voltage reconnect 12.0-14.0 VDC 24.0-28.0 VDC
Low voltage disconnect 10.5-12.5 VDC 21.0-25.0 VDC
Ambient temperature 0-40(full load)    40-60(de-rating)
Altitude Operating 5000m ,  Non-Operating 16000m
Protection class IP21
Battery temperature sensor BTS-optional remote battery temperature sensor for increased charging precision

We are one of China main SMS solar charge controller manufacturers. Firstly, we want to express our heartfelt thanks for your browsing Zhejiang Yiyuan Electric Co., Ltd. website. We mainly provide voltage regulators and UPSs, especially offline UPS, power inverter, automatic voltage regulator, with reliable quality. Our products are CE certified and have gained a great popularity in Russia, Southeast Asia and Africa regions. We look forward to doing business with you! Thanks!

Feedback Form
» Related products
    1. CS Battery Charger
      (1) Three stages variable charging voltage algorithm by timing for maximizing the battery lifetime
      (2) Large charging capacity design (40A for 12Vdc mode, 20A for 24Vdc mode) for shortening the charging time...
    1. SVC Transformer
      A voltage transformer is a kind of static electricity aluminium. Electrical transformers are composed of two or more windings which are wrapped around the same core and connected through alternating magnetic flux ...