boB [ Parent ]
The efficiency will be lower than using grid power direct but if it is only a small back up occasionally the convenience will make it worth the trouble.
Flux[ Parent ]
I use "HBX" [High Battery eXchange] mode on my FX2524 [perhaps incorrectly] It will go on grid to keep batteries safely within their voltage limits by going on grid, charging the batteries and powering loads from the grid and then dropping the grid when the batteries get to a set voltage. I run certain loads off the inverter and it helps me sleep at night knowing the loads will be supplied pretty much regardless of my incoming RE levels. My tired batteries just don't have a lot of bottom to them so on long stretches of low RE it keeps things on the inverter using all the RE there is then going to grid charge as needed.
Just how I do it with an Outback here. You need a "Mate" to do this I believe. For sure to set it up.
Mileage may vary.
Tom.
"Education consists mainly of what we have unlearned."--Mark Twain[ Parent ]
Other systems without LBX/HBX have to be made specially with a separate relay and control etc. It's nice to have it built into the system.
Thanks for the clarification. I thought I had somehow remembered the "H" wrong. Nice to know I can actually trust the occasional memory!
I do like how the Outback with a Mate turns a fairly "simple" inverter into a clever piece of gear. It does come at a price, however.
Thanks for the response / info.
Tom
