| hexnewbie | Maemo Leste tells me that for N900 battery calibration I just need to fully charge + 10 minutes and wait for full discharge. Some other sources tell me that for Maemo (not Leste) I need to follow complex instructions, unload modules, etc. Is this because of differences in the OSes? | 08:32 |
|---|---|---|
| sicelo | 10 minutes? | 08:33 |
| hexnewbie | I accidentally fully charged an N900 with Maemo & uncalibrated [recently bought] battery, it's not at 15% or so. Would it get better calibrated once it discharges, or should I simply plug the charger and not care? | 08:33 |
| hexnewbie | it's *now* at 15% | 08:33 |
| hexnewbie | The phone is using Maemo | 08:33 |
| hexnewbie | *not* Leste | 08:33 |
| sicelo | and no, you don't really need to unload any modules even in Maemo Fremantle | 08:34 |
| hexnewbie | Leste wiki says “Fully charge Nokia N900. Don't detach the charger immediately, give it some time after you see "Fully charged" message (10 minutes should be enough).” | 08:34 |
| hexnewbie | Which is why I said + 10 minutes | 08:34 |
| hexnewbie | I may have given it more, since I had to do some house keeping while it was at green light | 08:35 |
| sicelo | in most cases, just use the device normally and let it learn capacity on its own, but yes, if you specifically want to calibrate, then you need to charge to full, then discharge completely with normal usage | 08:35 |
| hexnewbie | I never fully discharged, and I stopped fully charging it a month or two ago (getting the battery 3 months ago), so I don't think it has learned anything. So I may let it discharge. | 08:38 |
| hexnewbie | My only remaining concern is if ubifs and ext3 at too much of a risk if I miss any final warning that the battery is low. | 08:39 |
| hexnewbie | It's at 11% (fully charged Monday around 15-18 UTC) | 08:41 |
| sicelo | there's no risk. the device will do a graceful shutdown | 08:58 |
| hexnewbie | Thanks | 09:14 |
| joerg | there's significant difference between genuine PR1.3 maemo and CSSU maemo | 21:02 |
| joerg | http://reisenweber.net/maemo5/usr/local/sbin/bq27200.sh http://reisenweber.net/maemo5/usr/local/sbin/bq27k-detail2 http://reisenweber.net/maemo5/usr/local/sbin/bq27k-detail-perl and http://reisenweber.net/maemo5/patches_n_tools/calibrate-bq27k.sh http://reisenweber.net/maemo5/patches_n_tools/calibrate-bq27k.session.log | 21:14 |
| joerg | 03:02 3219 6 6 -366 71 71 71 65535 12 39 NOACT:0 IMIN:0 CI:1 CALIP:0 VDQ:1 EDV1:0 EDVF:0 | 21:14 |
| joerg | 03:02 3243 6 6 -385 71 71 71 65535 11 39 NOACT:0 IMIN:0 CI:0 CALIP:0 VDQ:0 EDV1:1 EDVF:0 | 21:14 |
| joerg | https://i.imgur.com/TI9MC3M.jpg | 21:26 |
| joerg | however be aware that genuine maemo5 doesn't care about BQ27200 charge gas gauge, the battery charge indicator relies on BME blob (and HAL?) | 21:29 |
| joerg | both denuine maemo4 and CSSU will shut down gracefully when battery voltage drops too low | 21:30 |
| joerg | genuine* | 21:30 |
| joerg | maemo5* | 21:31 |
| joerg | it's still unclear how BME does battery charge state computation and if it calibrates at all | 21:32 |
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