<html><body><span style="font-family:Verdana; color:#000000; font-size:10pt;"><div>Hi Mac</div><div>You did not say what is the history of these batteries or how they are charged.</div><div>They accept an unusually low charge current; that means long charge time.</div><div>They may not be fully charging in a solar day. </div><div>This would have been apparent from the start of course.</div><div><br></div><div>DonB<br></div><div><br></div><blockquote id="replyBlockquote" webmail="1" style="border-left: 2px solid blue; margin-left: 8px; padding-left: 8px; font-size:10pt; color:black; font-family:verdana;"><div id="wmQuoteWrapper">
Date: Sat, 24 Jul 2021 11:03:39 -0600<br>
From: Mac Lewis <<a href="mailto:maclewis1@gmail.com">maclewis1@gmail.com</a>><br>
To: RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a>><br>
Subject: [RE-wrenches] Aquion troubleshooting<br>
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<br>
Hey wrenches,<br>
<br>
Does anyone have any advice for troubleshooting Aquion batteries? This<br>
particular stack is an Aspen 48M-25.9. They are losing power on a nightly<br>
basis. I'm not seeing much technical literature out there and I'm not<br>
familiar with these batteries.<br>
<br>
Are there any common failures? How do you safely open the container to<br>
check parallel strings. It may not be worth digging too deep but I'd be<br>
interested in other opinions and experiences out there. Glad I didn't sell<br>
them to him!<br>
<br>
Thanks<br><br>
<br>
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<br>
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