Q1 - will my microwave work?? (the inverter is a modified sinewave compromise)
Q2 - My new charger says it defaults to Gel type battery when power is first applied. Does this mean that I have designed in a requirement for manual intervention at every hook-up?
It's been fun. Costly but fun. Deep cycle batteries and 3/0 welders cable ain't cheap.
Hope I didn't bore anyone. lou
A1: Maybee, It depnds on both the microwave and just how "Modified" that sine wave is... This is why I choose the inverter I choose (Xantrex Prosine line) Actually, I choose "pure sine wave", the dealer choose xantrex.
A2: Likely the converter will remember the settings you feed it, There are three options here given in order of preference
A2-a: Converter will remember your settings so long as either 120 or 12 volts are applied to the proper terminals
A2-b: Converter will store your settings in FLASH RAM and remember them even after a complete power fail of both high and low voltage sides
A2-c: Converter will forget when unplugged (I can not imagine anyone designing one this way, but it's possible)
How to find out....
Plug it in, set it up.... Wait for the batteries to charge (No need to run them down) Unplug.
Plug back in and check the settings,, Did they hold? if so good, proceed to test 2, if not bad, skip 2
Test 2: Now unplug it, and disconnect the batteries, Come back in an hour (it is amazing how much power those converters store) and don't forget to leave a 12vdc light on somewhere to insure it takes the condensers in the converters down to zero.
Either plug it back in or re-connect the batteries (or both) and check the settings... Again, did they hold, if so excelent, if not well,,,, Keep the batteries charged