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PWM solar charge controller

PWM, 40A/40A, 12V/24V auto,

LCD display, 5V2A USB*2, IP32

40 amp Solar charge controller


Max-EU series is a new series of intelligent multi-purpose solar charge controllers with bigger LCD and 2 USB. Its innovative design makes it easy to install and quite user-friendly. Optimized charging and discharging management extends the service life of batteries considerably. Meanwhile, parameters are explicitly displayed. Most parameter values can be set to meet various applications.

  • LCD display design, read operating data and working condition easily.
  • Real-time energy statistics function.
  • 12V/24V automatic recognition
  • AGM,Liquid and GEL battery for selection.
  • External temperature sensor, automatic temperature compensation.
  • Built-in temperature sensor, when the temperature exceeds the set value, the charging current will lower down followed by the decrease of temperature, so as to control the controller’s temperature rise.
  • Four stages charge way: fast, boost, equal, float.
  • Multiple load control modes: Standard, Dusk to Dawn, Timer and User-defined mode.
  • Two USB interfaces.
  • Perfect EMC & thermal design.

Full automatic electronic protect function.

Type Max40-EU
System Voltage 12V/24V automatical recognization
Max Charging Current 40A
Fast Voltage <14.5/29.0V@25℃
Boost Voltage 14.5/29.0V @25℃
Equal voltage 14.8/29.6V @25℃(Liquid)
Float Voltage 13.7/27.4V @25℃
Low Volt. Disconnect 10.8~11.8V/21.6~23.6V, SOC1~5
Reconnect Voltage 11.6~12.8V/23.2~25.6V
Overcharge Protect 15.5/31.0V
Max volt on Bat. terminal 35V
Temp. Compensation -4.17mV/K per cell (Boost, Equal), -3.33mV/K per cell (Float)
Battery Type Liquid, Gel, AGM
Max volt on PV terminal 55V
Dusk/Dawn detect volt. 5.0/10.0V
Output Current 40A
USB interface 5V, 2A
Work mode Standard, D2D, Street lamp, User-defined mode
Dimensions(mm) 189 * 96 * 53
Weight 420g
Self consumption 5mA
Ambient temperature -20 ~ +50℃
Storage temperature -25 ~ +80℃
Ambient humidity 0 ~ 100%RH
Protection degree IP32
Max Altitude 4000m