Guest emerald123 Posted July 26, 2011 Report Posted July 26, 2011 Hello people, This may interest you (from Reddit): Full Article User ebola1986's experience: Summary: 1.Connect the phone to the charger with the phone powered on, and allow the phone to charge until the notification LED is green, indicating the device is fully charged. 2.Disconnect the phone from the charger, and power it off. 3.Reconnect the phone to the charger with the phone powered off, and allow the phone to charge until the notification LED is green. 4.Disconnect the phone from the charger and power it on. 5.Once the phone is powered completely on, power it off again and reconnect it to the charger until the notification LED is green. 6.Disconnect the phone, power it on in clockwork recovery, and wipe batt stats. You need to use this sequence only once. Because we are using the Blade ignore the "green LED" because Blade goes green at 90%. Just charge it for a while, max it out each time. Enjoy, Andy hi do i first have to use the phones batterry up completely nd then do the process?
Guest Goatface Posted September 3, 2011 Report Posted September 3, 2011 (edited) Evenin' all I have had my SF for just over a week now - it came with Eclair 2.1 - now rooted, and running Swedish Spring RLS5 thanks to you lovely people. My battery was charged last night and this morning dropped to 79% charge. I managed to deplete the battery completely by 2pm today! I am now on the final stages of the recalibration procedure, and will report on how it goes.... *waits for indicator LED to turn green* :-D UPDATE - Charging with the phone powered off took over 45 mins. Powered fully on, powered back off, now charging for the final stage.... UPDATE - Booted to ClockworkMod, got the dreaded Grey Hat in the centre of the display. Had to remove battery to boot normally. Oops UPDATE - Phone now at 17% and has been on for 23h 25min with bluetooth on for about 2 hrs, about 40 min of phone calls, about 30 mins gps, about 1hr internet and also vairious program usage (photos/ docs to go/texts etc) - I suspect the benefit has been the bump charge rather than resetting of battery stats. Edited September 4, 2011 by Goatface
Guest PeterLeics Posted September 15, 2011 Report Posted September 15, 2011 (edited) I've had the Battery Calibration app for a while, but I've recently gone into Wi-fi settings and turned off the Network Notification (notify me when an open network is available) and my battery life has more than doubled. Has anyone else tried this with the same success? Edited September 15, 2011 by PeterLeics
Guest jackal-sk Posted September 25, 2011 Report Posted September 25, 2011 To summarize, so is this method actually a good practice to do ? Or is it as wbaw says, that it overcharges the battery and makes its life shorter in the end ? Can anyone who knows what's he's talking about answer this ? :)
Guest t.A.T.u Posted September 25, 2011 Report Posted September 25, 2011 i done this and actually it worked pretty good but not like the battery lifes becomes twice more than the old one, but actually 1,5 times more
Guest Urpo Posted September 26, 2011 Report Posted September 26, 2011 To summarize, so is this method actually a good practice to do ? Or is it as wbaw says, that it overcharges the battery and makes its life shorter in the end ? Can anyone who knows what's he's talking about answer this ? :) No. I was also quite surprised what he's talking about. All official Li-ion batteries contain fail-safe circuitry that shuts down the battery when its voltage is outside the safe range of 3–4.2 V per cell. So you don't have to worry about overcharging your li-ion battery, and you can recalibrate your battery safely. It is possible that you have a poorly calibrated stats file that decreases your battery life. However, remember that a Li-ion battery loses 20% capacity per year on average. Loss rates vary by temperature and charge level. If you keep your phone and battery in warm (+ 35 °C) and fully charged all the time, the battery might lose even 50% capacity per year. As there's so much myths and fuzz about battery life, I'd also recommend to read these: http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
Guest jackal-sk Posted September 26, 2011 Report Posted September 26, 2011 Thanks a lot for clearing things up.
Guest Posted October 20, 2011 Report Posted October 20, 2011 (edited) Ok! I have a serious problem! I made that Calibration, and now after a few days my phone is run out of power (i always charging) and now it always show me its on 1% and it cannot start android without chargeing because it thinks the battery is fully delepted... so what can I do? Pls help... Ps.: I tried whipeing battery stat, but it wont work :( **EDIT** I attached 3 screenshot about that... Edited October 20, 2011 by Guest
Guest nrev Posted October 21, 2011 Report Posted October 21, 2011 Ok! I have a serious problem! I made that Calibration, and now after a few days my phone is run out of power (i always charging) and now it always show me its on 1% and it cannot start android without chargeing because it thinks the battery is fully delepted... so what can I do? Pls help... Ps.: I tried whipeing battery stat, but it wont work :( No great ideas. Do a nandroid backup first, just in case, then you could try to reflash your ROM without wiping data. If that doesn't help try again with all data wiped. If you don't get anywhere then it may be that your battery is dead.
Guest Posted October 22, 2011 Report Posted October 22, 2011 Ok I solved the problem! I recalibrated it, just neded a whole nigtht to charge it. And now I know what was the main problem! I whiped the batterystat at 100% but I dont allow the phone to fully dischargeing itself, so I think the OS thinks the phone can run up to 1 and half weeks! :)
Guest unrandomsam Posted October 22, 2011 Report Posted October 22, 2011 Or you can use a generic desk charger (I have one of these that works fairly well). http://www.ebay.co.uk/itm/Universal-Travel-Cell-moblie-Phone-Battery-Charger-1953-/150663332240?pt=LH_DefaultDomain_0&hash=item23143c0190 (but you need a US -> whatever plug converter also to use it)
Guest arpit22x Posted November 13, 2011 Report Posted November 13, 2011 I am having some problem with battery life on Dell XCD 35 (ZTE Blade rebranded by Dell for Indian market). Battery life is not more than 6-7 hrs after installing cm7.1.0 stable. Battery stats shows that DISPLAY is using 62-65 % even after turning brightness level to 30%, windows animations off, etc... I am not using WiFi, 3G or bluetooth. Can anybody suggest something? Doing the calibration now, let's see what happens....I am at step 3 and it is more than 30 mins but LED is still red. waiting for it to turn green. Does it mean that my battery was not charged fully but cm was showing full mistakenly? Arpit Hello people, This may interest you (from Reddit): Full Article User ebola1986's experience: Summary: 1.Connect the phone to the charger with the phone powered on, and allow the phone to charge until the notification LED is green, indicating the device is fully charged. 2.Disconnect the phone from the charger, and power it off. 3.Reconnect the phone to the charger with the phone powered off, and allow the phone to charge until the notification LED is green. 4.Disconnect the phone from the charger and power it on. 5.Once the phone is powered completely on, power it off again and reconnect it to the charger until the notification LED is green. 6.Disconnect the phone, power it on in clockwork recovery, and wipe batt stats. You need to use this sequence only once. Because we are using the Blade ignore the "green LED" because Blade goes green at 90%. Just charge it for a while, max it out each time. Enjoy, Andy
Guest arpit22x Posted November 13, 2011 Report Posted November 13, 2011 (edited) I think, it did n't work for me. 3% decrement in 5 mins. Pls help....Now, display is using 74% of battery. Arpit No Luck dudes!! It ate 25% battery in 2 and half hours in which it was mostly idle. .... Should I downgrade to cm7.0 ? pls suggest. Edited November 13, 2011 by arpit22x
Guest doogsville Posted November 14, 2011 Report Posted November 14, 2011 Doing the calibration now, let's see what happens....I am at step 3 and it is more than 30 mins but LED is still red. waiting for it to turn green. Does it mean that my battery was not charged fully but cm was showing full mistakenly? Arpit If it's taking more than 30 minutes for your led to turn green after a full charge i.e. step 1, then I would suspect you have a faulty battery or some similiar hardware problem. If I fully charge my phone, then disconnect from the charger and power off and reconnect to the charger, it takes about ten seconds for the led to turn green. Can you try a different battery in your phone, or try your battery in someone else's phone? I would be seriously thinking about returning it to the supplier for a replacement.
Guest arpit22x Posted November 14, 2011 Report Posted November 14, 2011 (edited) Thanx for the reply, but I don't think so. because reply#177 of this thread only, phone took 45 mins for Goatface also. keeping your point in mind and seeing so far, reinstalling Cm7.1.0, may be it help. Edit: Seems like I am having bad luck. Still draining fast. Edited November 14, 2011 by arpit22x
Guest andy_uk Posted January 5, 2012 Report Posted January 5, 2012 Apologies for resurrecting this thread...but I have a couple of questions :) If I were to charge my battery in a separate charger, would this not affect the battery stats file? and If I had 2 batteries (well... 3 actually! 2 x 1500 mAh and 1 x 1250 mAh) I presume I would ideally have to recalibrate each time I swapped batteries? Current ROM is FLB Froyo R10 (if this makes a difference)
Guest vNa5h Posted January 14, 2012 Report Posted January 14, 2012 Gonna try this heres my discharge status 100% to 90% - uder 10-15min doing nothing 10-1% - lasted for a hour even with heavy usage wifi on ,playing mkv x264 high l4 avc video using mx player(played almost 48 min of that video)
Guest meep.o.matic Posted January 14, 2012 Report Posted January 14, 2012 Acording to this link, wiping batterystats.bin after charging doesn't do anything to improve battery life,as explained by Google engineer Dianne Hackborn.
Guest vNa5h Posted January 15, 2012 Report Posted January 15, 2012 Acording to this link, wiping batterystats.bin after charging doesn't do anything to improve battery life,as explained by Google engineer Dianne Hackborn. it doesnt improve it... it just recalibrates it... ie removes the problem i mentioned before
Guest cowscrubber Posted February 12, 2012 Report Posted February 12, 2012 (edited) it doesnt improve it... it just recalibrates it... ie removes the problem i mentioned before about the article... Premise of calibration: delete batterystats.bin which stores inaccurate information about your battery which leads to short battery life. Google engineer says: "The whole idea of erasing that file (batterystats.bin) having any effect on battery life is pure superstition and wishful thinking. The battery usage UI describes what your device has been doing that has been consuming battery; it doesn't change how the device is using the battery." To summarise the article from meep.o.matic's link in points: 1. batterystats.bin's only purpose is for settings>about phone>battery use 2. batterystats.bin does not store data directly about the battery. 3. batterystats.bin gets renewed each time you charge your battery. 4. Calibration does not exist. It is a myth. Here's the entire conversation about the topic in google+ --> https://plus.google....sts/FV3LVtdVxPT The problem you encountered is likely related to the condition of your battery and not with the "calibration". I used to have that problem until I started to do this: when your phone finishes charging, leave it plugged in for 10 more minutes. Since then, 100% to 90% lasted a whole lot longer. I don't know if that's good for the battery but I've been getting better battery life from it. Edited February 12, 2012 by cowscrubber
Guest avira.tank Posted August 15, 2013 Report Posted August 15, 2013 My battery stuck at 17% when is charging on. I see my "OLED" red all the time. What I need to do? P.s. I wrote it from tablet, sorry for mistakes :)
Guest Snap.IT Posted August 17, 2013 Report Posted August 17, 2013 My battery stuck at 17% when is charging on. I see my "OLED" red all the time. What I need to do? P.s. I wrote it from tablet, sorry for mistakes :) Battteries have a limited life, you need to get a new battery, they are fairly cheap.
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