In this group I probably have the smallest LiFePO4 bank, so it would be easier for me to rack up the cycles than others. Since my trusty 25 year old Trace 2012 inverter
is 400 miles from my current
location and heavy to boot, I bought another 2000 watt inverter
that weighs 1/6 as much (8 lbs) and will be handy to use. I should be able to rack up 5 cycles and charges per day during the winter. The new inverter has a low battery alarm
that sounds off at 11.5 volts, so when the alarm
sounds I turn off the 1500 watt heater and record
the time that it ran. Since yesterday have cycled 7 times, resting cell voltage at start is 3.38 volts. Voltage after 59 minutes of powering the space heater and low voltage alarm is 2.95 volts. Then charge at 50 amps for a bit over 2 hours and repeat. I made life easy on me by connecting (2) Anderson plugs to the inverter, one for the battery bank and the other for the charger
. 3 years ago I got hit with a snow storm that knocked out power for 5 days. I have a pellet stove for heat but it needs 120 VAC to run the fire box blower and distribution fan and also the pellet auger. Also needed to power the refrigerator
, lights at night, etc. I did this by running a small generator
24/7 and going through all the gas I had in jerry cans and most of the gas in the hot rod. I'll be ready if it happens again, that is why I placed (2) Anderson connectors on the inverter as that will allow me to swap out a depleted bank for a charged bank without turning off the inverter. I calculate the load of the fridge and pellet stove to be low enough that each bank will run for 10~12 hours, so instead of 24/7 generator
run time it will be reduced to about 4 hours per day for charging
the banks. Plus I lost
a little heat from the house running the AC cord from the generator on the back deck
through a sliding glass door into the house. Won't need to do that for the next power outage.
at 49.4 amps.