It would have been extremely difficult to do anything other than keep the same difference between min and max, and shift the range only by whole volts. Although we don't expect anyone to use 52.0, and we did consider making it 43.0 to 51.0, we thought there was a chance someone might want to use 51.2 (3.2 Vpc) in a lightly-loaded system, and thought it unlikely people would want to let it go below 44.0 (2.75 Vpc), but if enough people convince us otherwise ...Northland wrote: Just curious, why (in general) have such a high 'low voltage cutoff' ?
44-52 is 2.75-3.25.
3.33v normal when not charging....a large load and it would surely trigger at a high soc? I mean 3.25 very close to 3.33...
Am I missing something?
I note that surge loads, like motors starting, will not trip it off because it must stay under the threshold for more than 10 seconds.
We don't recommend 17S LiFePO4 with these inverters because their battery-side capacitors and MOSFETs have very little headroom with their voltage ratings, and a history of failure because of it.On another note, all these changes make going to 17S easier. 44/17 is 2.59. Or 52/17 is 3.06. I'm happy with that range.