https://maemo.octonezd.me/index.php?action=history&feed=atom&title=User%3AJoerg_rw%2Fjrbme%2Fbme_microcycle_log 2026-04-22T07:07:53Z Revision history for this page on the wiki MediaWiki 1.45.1 https://maemo.octonezd.me/index.php?title=User:Joerg_rw/jrbme/bme_microcycle_log&diff=49015&oldid=prev 2010-11-12T21:31:55Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 21:31, 12 November 2010</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l5">Line 5:</td> <td colspan="2" class="diff-lineno">Line 5:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Note that this microcycling scheme only kicks in when system power consumption is low enough, otherwise too much current adds on top of that charging current shown by bq27200, and thus bq24150 charger chip&#039;s charge end threshold never triggers and charging continues infinitely. See http://wiki.maemo.org/User:Joerg_rw/jrbme/bme_chargefloat_log for an example</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Note that this microcycling scheme only kicks in when system power consumption is low enough, otherwise too much current adds on top of that charging current shown by bq27200, and thus bq24150 charger chip&#039;s charge end threshold never triggers and charging continues infinitely. See http://wiki.maemo.org/User:Joerg_rw/jrbme/bme_chargefloat_log for an example</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* 21:35 - charging complete and stopped, starting to discharge cell</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* 21:35 - charging complete and stopped, starting to discharge cell<ins style="font-weight: bold; text-decoration: none;">. That's actually recommended way to treat cells</ins></div></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* 01:25 - refresh charging kicks in</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* 01:25 - refresh charging kicks in<ins style="font-weight: bold; text-decoration: none;">. Still recommended</ins></div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* 01:26 - cell back to 100%, allegedly</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* 01:26 - cell back to 100%, allegedly</div></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* 01:28 - another micro refresh cycle</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* 01:28 - another micro refresh cycle<ins style="font-weight: bold; text-decoration: none;">. Here bme madness starts</ins></div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* 01:31 01:34 01:37 - regular refresh cycles</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* 01:31 01:34 01:37 - regular refresh cycles</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* 01:41 &#039; changed interval from 30s to 5s (bin/bq27200.sh 5). Watch consumption rising from avrg 10mA to 25mA. That&#039;s what the script is using</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* 01:41 &#039; changed interval from 30s to 5s (bin/bq27200.sh 5). Watch consumption rising from avrg 10mA to 25mA. That&#039;s what the script is using</div></td></tr> </table>

imported_>joerg_rw https://maemo.octonezd.me/index.php?title=User:Joerg_rw/jrbme/bme_microcycle_log&diff=49016&oldid=prev 2010-11-12T21:29:35Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 21:29, 12 November 2010</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l3">Line 3:</td> <td colspan="2" class="diff-lineno">Line 3:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>It shows how bme is doing microcycling to keep battery at 100%. According to datasheets of various battery charger chips and also to information from a LiIon cell manufacturer I received during my time at OM, this might not be exactly the ideal thing to do to a cell, regarding longevity and wear minimization. LiIon cells don&#039;t like to be charged continuously, and I&#039;d consider a pause of 2 minutes to be close to irrelevant to distinguish this scheme from continuous charging. Notibly bme does &#039;the right thing&#039; directly after finishing the initial charging</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>It shows how bme is doing microcycling to keep battery at 100%. According to datasheets of various battery charger chips and also to information from a LiIon cell manufacturer I received during my time at OM, this might not be exactly the ideal thing to do to a cell, regarding longevity and wear minimization. LiIon cells don&#039;t like to be charged continuously, and I&#039;d consider a pause of 2 minutes to be close to irrelevant to distinguish this scheme from continuous charging. Notibly bme does &#039;the right thing&#039; directly after finishing the initial charging</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Note that this microcycling scheme only kicks in when system power consumption is low enough, otherwise too much current adds on top of that charging current shown by bq27200, and thus bq24150 charger chip's charge end threshold never triggers and charging continues infinitely.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Note that this microcycling scheme only kicks in when system power consumption is low enough, otherwise too much current adds on top of that charging current shown by bq27200, and thus bq24150 charger chip's charge end threshold never triggers and charging continues infinitely. <ins style="font-weight: bold; text-decoration: none;">See http://wiki.maemo.org/User:Joerg_rw/jrbme/bme_chargefloat_log for an example</ins></div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* 21:35 - charging complete and stopped, starting to discharge cell</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>* 21:35 - charging complete and stopped, starting to discharge cell</div></td></tr> </table>

imported_>joerg_rw https://maemo.octonezd.me/index.php?title=User:Joerg_rw/jrbme/bme_microcycle_log&diff=49017&oldid=prev 2010-10-01T16:31:09Z

<p>bme charger log</p> <a href="https://maemo.octonezd.me/index.php?title=User:Joerg_rw/jrbme/bme_microcycle_log&amp;diff=49017">Show changes</a>

imported_>joerg_rw