I’ve got an AC500 with one B300K. I need another battery for living off grid through the summer here in the NM desert. B300K is out of stock. B300 discontinued. B500 out of stock (is that compatible with the B300K?) Are there any options at all to expand the batteries for the AC500? More solar panels will make it better, but during monsoon season I’m not sure that will be enough…
Thanks for any input - I’m new to this and just now setting up. I should have gotten 2 batteries right off the bat when I purchased this last August.