Speak to us today:

+41 79 534 33 73

We speak:

British French Italian
Make an enquiry
SAJ Sunfree 4/5K

SAJ Sunfree 4/5K


  • Save surplus electricty;increase self-use rate of PV generation.
  • Dual energy stroage design;batteries can be charged by PV&AC.
  • Lead-acid battery and lithium battery can be configured flexible.
  • Charging control and contrarian integrated design.
  • Compatiable with off-grid and on-grid mode.
  • Wi-Fi/Ethernet/GPRS/RS485 multiple communication mode for selection.
  • Settable peak-to-trough period;auto peak-shift.
  • Local/remote monitoring via PC or mobile phone.
  • Capacitive sensing key operation and LCD display, Man-machine interaction for more convenience and more stability.
  • High ingress protection;applicable to outdoor installation.
  • 3 stages/2 stages charging control; extend battery lifetime.
  • Natural convection to lower single point of failure.
Download PDF Datasheet