Thanks Darryl I’m going to have the installer bring the offending battery here We’ll see how it goes
Kind regards Tom Duffy Senior Solar Design Engineer [Solar-Biz-new-logo-800X300] Your 5-star rating really matters to us. Click to rate!<https://goo.gl/WVpOYr> Solar Biz™ team works hard to provide you the best customer service. If we don't deserve a 5-star rating, please contact us directly. We'll do what it takes to win your approval. Please note my new E-Mail E-Mail: t...@solar-biz.com<mailto:t...@solar-biz.com> Main Number: 888-826-0939 Panama Office: 507-836-5588 X 122 Direct Toll Free: 888-503-6772 International: 575-539-2111 X 122 SKYPE Address: thesolarbiz (e-mail first) I love nuclear energy! It's just that I prefer fusion to fission. And it just so happens that there's an enormous fusion reactor safely banked a few million miles from us. It delivers more than we could ever use in just about 8 minutes. And it's wireless!" Confidentiality Notice: This message including any attachments is for the sole use of the intended recipient and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender and delete any copies of this message. From: RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Darryl Thayer Sent: Tuesday, January 30, 2018 3:11 PM To: RE-wrenches <re-wrenches@lists.re-wrenches.org> Subject: Re: [RE-wrenches] for all you Aquion installers Since the cells stack in series the low voltage cell must be discharged. they are under compression, However If they are disconnected and charged separately perhaps they can be brought back. Are these batteries used in frequent cycles or just backup power? Lead Acid depends upon overcharge immunity, thee may not have that. If they are not overcharging the good cells the weak cells will continue to discharge until the battery has some very weak cells. On Tue, Jan 30, 2018 at 9:42 AM, Tom Duffy <t...@solar-biz.com<mailto:t...@solar-biz.com>> wrote: We have a situation with a customer's Aquion (Understand there's now longer a warranty) I spent some hours looking at the Aquions. I tested the voltage of each cell. 4 out of the 6 stacks had a cell that was low, in the range of 0, 3, 4, volts, while all the rest were above 6. Each of the cells has a test point above the connector. The cells that were low each have corrosion on the positive terminal, such as you see in the photo. Any ideas as to what is causing this? Has anyone seen this before? Kind regards Tom Duffy Senior Solar Design Engineer E-Mail: t...@solar-biz.com<mailto:t...@solar-biz.com> Main Number: 888-826-0939<tel:888-826-0939> Panama Office: 507-836-5588 X 122<tel:507-836-5588%20X%20122> Direct Toll Free: 888-503-6772<tel:888-503-6772> International: 575-539-2111 X 122<tel:575-539-2111%20X%20122> SKYPE Address: thesolarbiz (e-mail first) _______________________________________________ List sponsored by Redwood Alliance List Address: RE-wrenches@lists.re-wrenches.org<mailto: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<http://www.re-wrenches.org/etiquette.htm> Check out or update participant bios: www.members.re-wrenches.org<http://www.members.re-wrenches.org>
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