BFL13 wrote:
If the dogbone works with shore power to run the MW ok, it will be ok with the inverter.
No need to remove the weak battery, just by-pass it with the wiring so it is not in the bank. You really want to know if the bank is suffering with that in there if you want to last another year with those batts.
It depends on the first test for loaded voltage with all four. If bad, then try it with the three good ones to see if that fixed it. If not, then look elsewhere.
I just did another test of running 900 watt coffee pot.
Same Dogbone and AC Power cable as before.
No change in battery configuration.
Measured in Volts
12.57 Battery level measured at the batteries to start
12.46 After turning on Inverter connected to Trailer
11.80 Coffee pot load on dropped right away
It just stayed there for 5 minutes then started creeping up to
11.84
After 6 minutes
Turn off load and Inverter
After 5 minute battery rest
12.49 at batteries
Checked all connections and no hint of getting warm.
Any thoughts
Corrected I just realized that I had NOT turned off the Inverter after the test. I had only disconnected from it.
12.55 after turning off Inverter