Question on new inverter reading
My new 1200 watt pure sine wave inverter arrived yesterday. I just hooked it up to a new group 27 deep cycle. the LED read 12.9 volts. I then plugged a fan into it and turned it on. Voltage immediatel...
Forum Discussion
mrad wrote:shastagary wrote:
you should be ok with that wire for your testing.
the meter on the inverter may not be accurate i would run it with a load and see how long it runs before it starts beeping the low voltage alarm
I have read to never run a deep cycle below 40% charge. Low voltage alarm goes off at 10.1.
from what I have read, this would be almost a total discharge????
i think 10.5v is considered total discharge
you never want to run until the inverter shuts off
unless its a survival situation (emg equipment etc..) and you have no other choice
what load ? 144w or 60w, 144w load equals about 165w inverter input or about 13amps (cant be sure with out an amp meter test)
approx 22ampHrs use, from a 90-100AmpHr battery
but the 20hr 'rating' would only be a 4.5 amp load
so your load is 3 times the 'test load' for the battery rating
this lowers the total capacity of the battery
a 5amp load for 9hrs would be a more accurate test of the battery
believe me, we have ALL, been thru this, its a learning curve
you never said what you are going to power with the inverter but the numbers sound TV/PC entertainment, where all you need is 300w
1200w will a run a coffee maker or some MWs, but that is 70-90amps
which will be hard to do with (1) battery
sometimes even (2) can be a struggle
