Greetings Jay, I’ve been using Blue Ions exclusively for the last 5 years almost. Most of my sites sit around 1800-3000’ and only had two shutdowns due to cold temps. Since it takes such significant periods of time for that much mass to get to get below the temps of concern it really just hasn’t been a problem. Of my two shutdowns, one was my own where I’ve intentionally left the cabinet in an unconditioned area where my old L-16’s sat and the power was only out from 5:00 am to 8:30 am a couple Februarys ago. My first site that had been effected was at a client’s where the cabinet sits in an unconditioned multi-use power shed and the door to the building had been left wide open by mistake throughout the evening and the temperature logger had recored 17 degrees by 4 AM. By 10 AM by the time I had made it to the site the power was back and we’ve not had a problem since.
Back when Kyle was at Blue Planet he said there was a dealer in Utah that placed a small seedling or reptile heating mat in the cabinet along with lining the sides and bottom with Reflectix. From what I recall they had reported great success with that effort. I think they might have even crafted a little support document showing their strategy. I’ve been keeping that one in mind for any potential project that might push the limits but seems like for most of us the instances where it would be a problem will be rare. Best of luck, Nick > On Jul 21, 2022, at 2:30 PM, jay via RE-wrenches > <re-wrenches@lists.re-wrenches.org> wrote: > > HI All, > > As I get more calls for offgrid designs with lithium batteries I”m wondering > what you all are doing to keep the batteries warm when it gets cold. For > some of you 0 F will seem mild, others super cold. > > Doing a battery box and heating that or heating the whole inverter/battery > shed? > > I’m definitely not looking at batteries like battle born with the built in > heaters. > > Simpliphi, Discover, some of the newer server rack ones ( UL listed), etc. > > > Thanks in advance > > Jay > _______________________________________________ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: RE-wrenches@lists.re-wrenches.org Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
