I really like the Sungold inverter/charger. There are two features I wish it had. One would be that it had a switch to manually turn on the charger if I wanted to. Now I have to set the DIP switch over to grid priority mode and then back to battery priority. But it charges the batteries all the way up. I also would like to see a way to set a voltage to where the battery charger stopped charging once the battery hits that voltage. The all in one 48v systems have that feature.
It seems the low frequency inverters do not shut off as easy.. I have another 3200 high frequency running along with a 1200 Victron 24 volt (same batteries). When the battery hits the top the 3200 will beep and kick off and the Phoenix never misses a beat. I’ve seen a flash voltage of 35.14 volts.
Here's a tip from a veteran inverter repair tech. NEVER test a newly repaired inverter with a battery. Always test the inverter with a variable power supply set at a low current setting (3 to 4 amps) max. And always use an oscilloscope to make sure that your inverter is producing the proper waveform.
Thanks for the tip. That was my first inverter repair. What is the most common issue you face in that situation? Something not hooked up correctly? I'm assuming the low current will help reduce the possibility of damage while still letting you know something is wrong.
