I agree with all the feedback. I've been personally using these batteries for about 5 years now and up until 2 weeks ago when I doubled my PV array I was doing quite well with a C/40 - C-50 charge rate. At the same time I've had no issues w/rates as high as C/16. All of these numbers are for a 100hr rating. As Brian said if you can replace the daily discharge plus ~20% your array will do the job. I also think a 2nd FM60 is by far the better option and avoids potential could edge overdrives, however it likely means a new wire run from the array.
good luck, -jeff o >From the Solar, Wind and Hydro powered office of Jeff Oldham/Regenerative >SOLutions ____________________________________________________________ Small Business Tools Click to find the latest solutions to enhance your small business. http://thirdpartyoffers.juno.com/TGL2131/c?cp=QGIWNC3kivn2HnHJWro8SAAAJz3wjMeYFQQEj9ak8QigdzdLAAYAAAAAAAAAAAAAAAAAAADNAAAAAAAAAAAAAAAAAAARMQAAAAA= _______________________________________________ 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