We purchased 4 of these units to run as a power back up. Connected to 2 x 120AH 12V gel batteries with solid cable 70mm2; 5 minutes after connection to 230V the 1st unit burned (2 banks of MOSFET grilled);
Testing the charge voltage at the 2nd unit with Electronic multimeter => 2nd unit grilled! installed the 3rd unit; 25V in the batteries!! charged for 1 hour, connected a new freezer (350W, 220V), the 3rd unit grilled!!
No response from manufacturer! no response from dealer! no contact for spare parts.
Can not recommend to buy this !! maybe now contact is possible
hunger@sms.at
