Hi Will, Flooded (or wet cell batteries) are typically much more forgiving than a sealed battery. Check S.G. (≈1.265 at rest) and load test. Equalize if necessary (if >.05 difference in S.G. cell-to-cell). Eric _____________________________________________________________________________________
Eric Bentsen | Schneider Electric | Solar Business | UNITED STATES | Technical Support Representative Phone: +(650) 351-8237 ext. 001# | Email: [email protected] | Site: www.schneider-electric.com/solar | Address: 250 South Vasco Rd., Livermore, CA 94551 *** Please consider the environment before printing this e-mail From: Will White <[email protected]> To: RE-wrenches <[email protected]> Date: 06/10/2013 05:23 AM Subject: [RE-wrenches] Battery Damage Sent by: [email protected] Wrenches, I have a customer who’s got a 24V off grid system with one string of 12 two volt, 2000AH Power Battery brand flooded lead batteries. The bank is about four years old and has been working great except the customer forgot to water the batteries for an extended period. When I went out to service them the plates were exposed and I had to add about a gallon of water per battery. These batteries have a large amount of water over the plates usually so I’m guessing that about 1-2” of the top of the plates were exposed which is about 10% of the total plate surface. So here’s the question. The bank seems to be working fine, is it likely that permanent damage was done? Is there a good way to test for damage? Is there anything I can to do mitigate any damage done? Thanks, Will __________________________________________________________________________________________ Will White Regional Field Operations Manager �C New England Real Goods Solar 64 Main St. Montpelier, VT 05602 Tel: (802) 223-7804 Cell: (802) 234-3167 www.realgoodssolar.com ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. ______________________________________________________________________ _______________________________________________ List sponsored by Home Power magazine List Address: [email protected] Change email address & 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
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