Setuju oom Ocu...batere cadangan emang bisa dibilang wajib ya, apalagi kalau sering di abuse pemakaiannya :-)
Salam, -Yoshwar On Apr 28, 2011 2:51 PM, "Ocu Mudo" <[email protected]> wrote: > 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 > > -- > "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 -- "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
