Friends: I had a similar experience with Trojan vented L-16s about two years ago: all of a sudden the product would not perform as it used to. A vendor let slip that plate chemistry had been modified. I was later told that charge voltages needed to be higher than ever recommended previously-voltages difficult to achieve off-grid. This product degradation has been discussed here. Likewise it was helpful to corroborate experiences. Thanks, everyone!
William Miller > On Jan 19, 2018, at 4:12 PM, Maverick Brown <maver...@mavericksolar.com> > wrote: > > Same here! We use mostly SunExtender and have had the same issue. As far as I > know, they are the same battery with different labels. I have had some > success in being a LOT more aggressive with voltages & times and sometimes > going above FLA settings to get banks to recover and perform closer to spec. > Makes me nervous though, since more than 50% of a customer’s investment can > just vaporize with what one thought was appropriate charge settings. I > suggest EQ as the new norm for AGMs, especially in grid-tied-battery-backup > cases and where off-grid use does not give adequate absorb time. > > _______________________________________________ List sponsored by Redwood Alliance 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 List-Archive: http://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/maillist.html List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out or update participant bios: www.members.re-wrenches.org
