Low voltage drop out

[emeraldcoastcamper]

My magnum hybrid inverter allows me to program the low voltage drop out. It does not say anything about battery life remaining. If I am installing 2, 12 V 200 amp lifepo batteries where would be a good level for the low voltage drop out?

 

[MisterSandals]

The kiss of death for LiFePO4 is around 2.5v/cell so well above that.
I think 12v (3v/cell) would be as low as i would ever go if i needed to squeeze out as much as possible to get thru a night or a few cloudy days.
A conservative number would be 12.5v-12.9v. (see attached) Try this and see how it goes; not much can go wrong here. And this will yield most of your usable power.

 

[Sojourner1]

I've been using 12.0v on my Magnum hybrid for the past 4 years. The lowest I've seen was 12.3v inverting at 29% SoC early morning using the microwave (125a) before the sun came up.
When using my 12 cup coffee maker at 26% battery pack read 12.83v, inverting 12.6v with a 76.6a draw.
Remember that your inverter reading probably will read lower than the battery pack voltage.

I've been living off the system in sig for 4 years now.

 

[emeraldcoastcamper]

The kiss of death for LiFePO4 is around 2.5v/cell so well above that.
I think 12v (3v/cell) would be as low as i would ever go if i needed to squeeze out as much as possible to get thru a night or a few cloudy days.
A conservative number would be 12.5v-12.9v. (see attached) Try this and see how it goes; not much can go wrong here. And this will yield most of your usable power.

View attachment 6913

Good info. Thanks a bunch.