SMA specifically says they can go to 42V. This is a link to the SI5048 Installation and Instruction Manual:
http://download.sma.de/smaprosa/dateien/7995/SI5048U-TUS091012.pdf It is a 6 Meg. file. See page 92. Vaseline & lead. I have observed what may be lead oxide on battery terminals. It's grey to black crud. Seen lots of it on lots of auto batteries over the years. Car barely cranks, remove cable from post, brush both well to restore shiny lead surface, coat everything with vaseline, reassemble. Vehicle will often crank 100% better and start. Vaseline prevents this problem from ever happening again. Do not be concerned about getting it on mating surfaces. Is this starting to sound like a pun? ....Nevermind :-) Dick Solarwind Electric --- You wrote: Yes, I've had a 48 v system survive a dead cell (Outback inverter), but 24 or 12 v systems are done. So I guess the Sunnyboy can go down to 42 V? R. Walters r...@solarray.com Solar Engineer --- end of quote --- _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
