AC300 and B300K were purchased for…off-grid use.
AC300 and B300K were purchased for off-grid use in Canada to run miter saw, internet ...etc. It ran electronic devices very well. It would trip on low voltage trying to start miter saw (15amp)(fixed with a firmware upgrade). Severe limitation when charging in winter below 10C, below 0C it does not charge at all. This is something i did not know at purchase, but tech support said this is to protect the battery. Beware of this limitation for charging in cold weather. You would have to find some way to keep the batteries above 10C in winter when its -30C outside, not easy to do off-grid. Tech support said it will operate down to -20C, but then you have the problem of charging it in cold weather.