Mantab...nice share Bg gw, batere android no problemo Beli batere cadangan + power bank Android itu "trully always on" On Apr 28, 2011 6:30 PM, "Yoshwar S" <[email protected]> wrote: > permisi suhu/i dan rekan2 semua. mau sharing info yg bagus bgt mengenai cara > memantau pemakaian battere dari > http://techdigger.wordpress.com/2011/04/16/improve-android-battery-usage/ > infonya saya copas dibawah. > > poin nomor 3 dan 4 dari info dibawah (CPU dan Sensor Usage) bisa dipantau > dgn battery history di Spare Parts app (free di market) di Froyo. > menurut info dr link tsb, spare parts sudah include di GB, tp dr rom GB yg > pernah saya coba (oxygen dan redux di Desire), spare parts tsb belum > included. > dan sayangnya jika install SP lewat market di GB masih buggy (FC kalo diklik > Battery History-nya). jadi utk yg ROM GBnya belum include Spare Parts, bisa > donlot app Battery History GB di > http://forum.xda-developers.com/showthread.php?p=12815868#post12815868. saya > udah coba, walaupun titlenya masih beta, tapi udah bagus bgt dan gak pernah > FC. > > point no 3 dan 4 tsb juga bisa dipakai utk memantau app tertentu yg > dicurigai bikin boros batere. > jadi pengukurannya bisa lebih akurat daripada sekedar based on feeling (ato > kata temen) :) > > semoga membantu buat yg pengen mengoptimalkan dan memantau pemakaian batere > di android. > > Salam, > -Yoshwar > > nb: pada poin 2 di Sensor Usage dr link tsb, beberapa GB ROM justru > menyarankan utk menggunakan Wifi sleep policy>Never utk menghemat batere. > (Settings => Wireless and Networks => Wifi Settings => Menu key => Advanced > => Wifi Sleep policy => Never). silakan di tes sendiri mana yg lebih irit. > > App lain yg cukup berguna utk memantau pemakaian batere yg pernah saya coba > adalah Battery Monitor Widget. > > Salam, > -Yoshwar > > Debugging the Android > Battery< http://techdigger.wordpress.com/2011/04/16/improve-android-battery-usage/> > > Posted April 16, 2011 by Mayur Rustagi in > android<http://en.wordpress.com/tag/android-2/>, > benchmark <http://en.wordpress.com/tag/benchmark/>, > technology<http://en.wordpress.com/tag/technology/>. > Tagged: google <http://en.wordpress.com/tag/google/>, > Android<http://en.wordpress.com/tag/android/>, > battery <http://en.wordpress.com/tag/battery/>. 3 > Comments< http://techdigger.wordpress.com/2011/04/16/improve-android-battery-usage/#comments > > > Does android battery suck, or is it usage? In short it does suck compared to > other popular alternatives(the i range). However the purpose of this post is > not to start a witchhunt or rant but to arm you with tools to debug your > battery usage. I will help you track down your battery hog(s) and then > suggest some methods to tackle them. > > There are *4 main causes* of battery hogs: > > 1. Cell Phone Usage > 2. Display > 3. CPU usage > 4. Sensors like (GPS, Wifi etc) > > Lets start with the easy one: > *Cell Phone Usage* > > Cell tower is the one that provides you connectivity, EDGE and 3G. > Unfortunately weak signal can cause this to use exorbitant amount of > battery. If you are experiencing full battery drain in about 2-3 hours then > this is most probably the culprit. First thing to do is go Settings -> About > Phone -> Battery Use -> Cell Phone standby. Look @ Time spent without > signal. Any number other than 0 is very dangerous. There are no practical > solutions to this problem. Search for network and fix it. This will prevent > phone from searching network when signal is weak. However this may not work > when you go on roaming and if you spend most time out of signal this will > still consume battery. > *Display* > > The only downside of having a large screen is that it consumes exponential > charge. If you using an LCD screen, your phone is only likely to survive 4-5 > hrs of screen on time. This is assuming that you are not performing any CPU > intensive task during that period like gaming, video etc. It is highly > likely that you will consume 4 hrs of usage out of your phone in the entire > day hence its unlikely that your phone will survive more than a day. The > only aspect to debug here is if some freaky software or buggy ROM is keeping > your screen up. Gingerbread provides you clean interface to check your > screen on period. You can use Juice > Plotter<https://market.android.com/details?id=com.latedroid.juiceplotter> > on > non gingerbread phones but it has been known to consume a lot of battery > itself. Make sure you only use to to debug your screen and not on a regular > basis. > > Have a look at your Screen ON time and make sure you are getting around 4 > hrs of usage. Any thing less than that means that you have issues with your > battery. Look through the CPU Usage and Sensor usage area debug those > issues. > Solutions: > > 1. Choose an AMOLED screen phone: AMOLED screens consume very little > battery in comparison to LCD Screens. > 2. If you have an AMOLED screen then choose darker themes while > browsing/surfing/wallpapers. A light color pixel consumes about 5.8 times > more energy than dark pixel. This method will not work for LCD phones. You > can see the impact of changed wall paper using Current > Widget<https://market.android.com/details?id=com.manor.currentwidget>. > This will tell you how much charge your phone is consuming(wait for couple > of min for it to refresh when you change the wall paper). > 3. Choose lower screen brightness in general. Rely on Power control > widgets to increase screen brightness when required. > 4. Reduce display timeout to 30sec-1min. Adjust that to a time that > is comfortable to you. > > *CPU usage* > Today’s CPU are beast. This means not only they are fast and powerful they > consumAndroid allows apps to ask for CPU while not using the screen. e > millions of amperes of precious juice(okay maybe not millions). CPU usage is > a bit tricky to debug in pre-Gingerbread phones. You are mostly led to > superstitious advices to control power usage. You can see as much as 10-20% > battery usage overnight when you were not using the screen, this is because > Android allows apps to ask for CPU while not using the screen and poorly > designed apps continue to update even when they have not been used in a > while draining CPU. Enough rant now to function, to debug CPU: > > 1. Launch Spare Parts. Fortunately this is bundled in Gingerbread phones, > for Froyo you can try out this market app > https://market.android.com/details?id=com.androidapps.spare_parts and > hope it will work. > 2. Look at Battery history inside Spare Parts. Select “Other Usage” in > first drop down. > 3. Check out Running time vs Screen On time. > > If these two numbers are widely different then you have a problem on your > hands. This means that some app is keeping CPU awake even when your screen > is off. To find out which app > > 1. Launch Spare Parts > 2. Look at battery history and select “Partial Wake Usage” > 3. Now you will see which app is the culprit and eating up CPU. > > Now comes the hard part . You can reduce your running time by disabling this > app. If the app manufacturer is good, he would have provided you means to > reduce its battery usage(Disabling sync, changing sync from push to hourly, > reducing data refresh etc). If not then you should uninstall the app and use > something else for that purpose. Keep repeating this exercise till your > running time is almost equal to your screen on time. You will see radical > improvements in your standby time with this exercise which in turn can > reduce your charge cycles to as much as 2 days. > Other than choosing good apps which use CPU wisely some suggestions: > > 1. Use less push sync in general. True push is only available with > Blackberry everybody else is doing a very frequent pull to emulate push, so > make sure you don’t use push where its not required. > 2. In my opinion disable auto sync all together and do a manual sync when > needed. You can put the auto sync button in your power widget and flick it > on and off whenever needed > 3. Use Juice > Defender<https://market.android.com/details?id=com.latedroid.juicedefender > > it > will give you good usage patterns(disabling sync at night etc). > > Solution for Advanced Users: if you need all the apps that sync but still > want to reduce your battery usage you can try Set > CPU< http://www.google.com/url?sa=t&source=web&cd=1&ved=0CBgQFjAA&url=https%3A%2F%2Fmarket.android.com%2Fdetails%3Fid%3Dcom.mhuang.overclocking&ei=41upTc-rMcjTrQf9p_inCA&usg=AFQjCNFIulPB7QjqIyLtGiHbS93SSzmTXg&sig2=yd3p1PyPXBzNSvao_7xiRQ > > to > underclock your CPU. You can also use the inbuilt underclocking baked into > the CM7 ROM. This solution will only work if you have *rooted your > phone*and your > *kernel supports underclocking*. Default android kernel comes with OnDemand > CPU clocking. CPU almost instantly scales to max frequency(like 1Ghz) from > its min frequency(like 245Mhz) when required. You will need this kind of > speed for gaming/browsing etc however its not required for sync and other > background tasks. Set CPU lets you configure so that > > 1. Your CPU scales slowly(Conservating scaling/Power intensive), > especially when you have very little battery left > 2. Reduce highest CPU frequency to something like 700 Mhz especially > during the night or when the screen is off > > Keep in mind however that these solutions can impact your phones > performance while rendering pages, gaming etc, so do not reduce cpu > frequency or scaling when your screen is on to prevent frustrating > experiences. > *Sensor usage* > If you have reached here then the problem is quite simple shut off all your > sensors [image: :)] . Well Android provides various ways of debugging sensor > usage, have a look at your Spare parts => Battery History => Sensor > Usage/GPS Usage. If you see a lot of devices are using GPS Sensor you are > likely to see a lot of battery loss. Its unfair that android does not let us > control which device has access to my location and which does not, I hope > they will add that in future versions of android. Meanwhile if you see > useless apps tryto access location(mostly to serve relevant ads etc) then > you can adopt the following solutions: > > 1. Disable both ways to determine your location in Settings => Location > and Security. If you really need location then go for “use wireless > location” instead of GPS for location. Use GPS only in critical situations > where precise location is very necessary > 2. Change Wifi sleep policy (in Settings => Wireless and Networks => > Wifi Settings => Menu key => Advanced => Wifi Sleep policy => When screen is > off) This will switch off your wifi and turn on mobile network when you are > not using the screen. This way your background apps can use your slow mobile > network to sync while saving wifi juice. > 3. Turn on “Only 2G network” in (Settings => Wireless and Networks > => Mobile Networks) . This will switch off your 3G network and use only 2G > which uses much less battery and is much slower. You can also use 2G/3G > switcher in power widget to control this if you rely on 3G for browsing. > > Got any other suggestions?? Let me know in comments… > > -- > "Indonesian Android Community" Join: http://forum.android.or.id > > =============== > Xperia arc with Mobile BRAVIA Engine > http://www.sonyericsson.com/product/xperiaarc/video/mbe > --------------------- > Unlimited Data XL Mobile Broadband > http://www.xl.co.id/XLInternet/BroadbandInternet > -------------------- > PING'S Mobile - Plaza Semanggi > E-mail: [email protected] Ph. 021-96087100 > -------------------- > i-gadget Store - BEC Bandung > E-mail: [email protected] Ph. 0812-21111191 > -------------------- > Toko EceranShop - BEC Bandung > E-mail: [email protected] Ph. 0815-56599888 > =============== > > Aturan Jual/Kloteran ID-Android http://goo.gl/azW7
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