CK Series CK20U/CK30U Solar Charge Controller Forsol Energy


  1. CK20U 10A/20A 12V24V auto work

  2. CK30U 30A 12V24V auto work



  • Vivid LED indicators show system battery capacity, charging and discharging state of battery.
  • Protection functions such as overcharging, over discharging, overloadand reverse connection.
  • PWM charging increases charging efficiency by 3% to 6%, compared with non-PWM charging.
  • The parameters of charging and discharging are preset, so no need to adjust the parameters. (Special parameters need to be advised in advance.)
  • USB output function.



  • PV array short circuit protection
  • PV array over-voltage protection
  • PV array over-current protection
  • PV array polarity reverse connection protection
  • Battery low voltage disconnection
  • Battery over-voltage disconnection
  • Battery polarity reverse connection protection
  • Over-load protection
  • Load short circuit protection

Technical Data

Solar Charge Controller Forsol Energy


CK20U-CK30U Architecture forsol energy