<html aria-label="message body"><head><meta http-equiv="content-type" content="text/html; charset=us-ascii"></head><body style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><br id="lineBreakAtBeginningOfMessage"><div><br><blockquote type="cite"><div>Am 04.09.2026 um 11:31 schrieb Richie Burnett <rburnett@richieburnett.co.uk>:</div><br class="Apple-interchange-newline"><div><meta charset="UTF-8"><span style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; float: none; display: inline !important;">That voltage sounds low, Adam. Mine was still measuring nearly 3.3, </span></div></blockquote><div><br></div><div>Under which load? These Li coin cells are strange. Some are still full voltage under no load when they are EOL and some have a quite low voltage even when they are still good for some time. I always measure them with a 10k load.</div><br><blockquote type="cite"><div><span style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; float: none; display: inline !important;">and is actually still brightly illuminating a red LED on the bench beside me after 3 days!<span class="Apple-converted-space"> </span></span></div></blockquote></div><br><div>Ah, quite a high load. Amazing!</div><div><br></div><div>For the record, the first Li cell in my DX7 lasted for about 20 years.</div><div><br></div><div>Just a reminder, always wear safety goggles when soldering or unsoldering Li cells!</div><div><br></div><div>Ingo</div></body></html>