PWM Solar Charge Controller 12/24V 30-40A

PWM Solar Charge Controller offer an efficient, safe, multi-stage recharging process that prolongs battery life and assures peak performance from a solar array.




  • Automatic system voltage identification
  • Charging program options for sealed, GEL and flooded lead-acid batteries and lithium batteries are available.
  • An upgraded 3-stage PWM charging algorithm is adopted. Application of an equalizing charge to the battery periodically or when over discharged, can effectively prevent the battery from non-equalization and sulfuration, thus extending the battery’s service life (with the exception of GEL and lithium batteries).
  • With temperature compensation employed, charging parameters can be automatically adjusted (with the exception of lithium batteries).
  • A wide range of load working modes facilitate the product’s application to different types of street lights and monitoring devices.
  • The product provides overcharge, over-discharge, overload protection, as well as short-circuit and reverse-connection protection.
  • By virtue of an advanced load starting method, large-capacitance loads can be started smoothly.
  • A range of parameter settings and power-down saving functions are available ,thus requiring no repeated setting.
  • The product provides a dot matrix graphic LCD screen and a human-machine interface with 2 keys.
  • The user-friendly design of browser and dynamic interfaces ensures convenient and intuitive operations.
  • (An optional communication function) provides a RJ12 data port (output of TTL232 level or bluetooth signals), with the data adopting the standard Modbus protocol, and can be used together with our upper computer monitoring software or mobile phone APP.
  • Boasting an industrial grade design, the product can function well in various tough conditions.
  • TVS lighting protection is adopted.



Model HP2430/2440
Rated current 30A/40A
System voltage Automatic recognition of 12V/24V
Manual setup
Rated power 12V/450W 12V/600W
24V/900W 24V/1200W
No-load loss < 22mA/12V;< 16mA/24V
Max. Solar energy input <55V
Max. voltage <34V
at the battery end
Battery type Parameters
Flooded Sealed GEL Lithium
Overvoltage protection 16.0V
Equalizing charging 14.8 14.6
Boost charging voltage 14.6 14.4 14.2 14.4
Floating charging voltage 13.8 13.8 13.8
Charging recovery voltage 13.2V
Over-discharge recovery voltage 12.5V(settable with the keys)
Over-discharge voltage 11.0V(settable with the keys)
Equalizing charging interval 30days
Equalizing charging time 1H
Boost charging time 2H
Temperature -3.0mV/℃/2V
Light control voltage Light control on 5V, light control off 6 V (light control on plus 1 V)
Light control 10 minutes
judgment time
USB function Yes
Bluetooth function optional
232 Serial port communication function optional
Operating temperature -25℃to+55℃;
Over temperature protection When temperature is above 60℃,charging function is turned off, and the function is recovered when temperature is below 55℃;
When temperature is above 70℃,load starting function is turned off, and the function is recovered when temperature is below 60℃
IP protection rating IP30
Net weight 700g
Protection Battery plate reverse connection protection, a battery reverse connection protection, charging battery board short circuit protection, charging the battery open circuit protection, charging over current protection, overload protection, load short-circuit protection controller and over temperature protection.
Dimensions 166.0×118.2×52.6(mm)


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