Since jailbreaking an iPhone, battery drains faster due to unnecessary 'phoning home' by apps. Aside from the invasion of privacy, such activities also keep the iPhone and network connections active.
By installing PrivaCY from Cydia, and blocking the apps from connecting unnecessarily, battery power is saved.
To do this, here's a step by step:
1. Install PrivaCY from Cydia.
2. Install OpenSSH, also from Cydia.
3. SFTP to your iPhone via an FTP program such as Transmit (for Mac)
--- user: root
--- pass: alpine
--- the first time you connect, it takes about 30-60 seconds
4. Go to /etc folder.
5. Rename the original hosts file to hosts.bak
6. Install this as your new hosts file, and restart...
##
# Host Database
#
# localhost is used to configure the loopback interface
# when the system is booting. Do not change this entry.
##
127.0.0.1 localhost
255.255.255.255 broadcasthost
::1 localhost
fe80::1%lo0 localhost
## http://i-phone-home.blogspot.com/ ##
## Feel free to distribute, with this header intact ##
## Version 0.50.8, updated 31/08/09 by 0th3lo ##
## Generic iPhone/Application entries
# Google analytics
# Used by: iBeer, Jaadu RDP, MxTube
127.0.0.1 [url=http://www.google-analytics.com]www.google-analytics.com[/url]
# iTunes & AppStore Application - makes 14 requests, 2 related to usage tracking
# Used by: Apple AppStore, Apple iTunes
127.0.0.1 metrics.apple.com
# +Plus Network - Community/social network for iPhone games, sends listing of games & information to servers
# Used by:
127.0.0.1 app.plusplus.com
## Generic Mobile advertising providers
# Used by: iFarty, psx4iphone, TwitterFon, Wobble, Dude, iAppUSA & Cydia Apps, Flash for Free, Paper Toss, Chess Free, Crack the Code
127.0.0.1 a.admob.com
127.0.0.1 r.admob.com
127.0.0.1 mm.admob.com
127.0.0.1 ads.mobclix.com
127.0.0.1 a.mobclix.com
127.0.0.1 s.mobclix.com
127.0.0.1 data.mobclix.com
127.0.0.1 bank09.ads.mp.mydas.mobi
127.0.0.1 bank15.ads.mp.mydas.mobi
127.0.0.1 ad.qwapi.com
127.0.0.1 event-img.qwapi.com
127.0.0.1 met.adwhirl.com
127.0.0.1 mob.adwhirl.com
127.0.0.1 ads2.greystripe.com
127.0.0.1 d7.zedo.com
127.0.0.1 d13.zedo.com
127.0.0.1 fg.zedo.com
127.0.0.1 tags.expo9.exponential.com
127.0.0.1 simg.zedo.com
127.0.0.1 a.tribalfusion.com
127.0.0.1 cdn5.tribalfusion.com
127.0.0.1 googleads.g.doubleclick.net
127.0.0.1 pagead2.googlesyndication.com
127.0.0.1 wobble.s3.amazonaws.com
## Multiple application entries ##
# Pinchmedia analytics
# Commonly Tracks: iPhone's unique ID, iPhone Model, OS Version, App version, Cracked & jail-break status, date/time of app start & shutdown
# May Track: your current latitude & longitude
# Can Track: your gender, birth month, birth year (if Facebook enabled)
# Used by: AroundMe, Aussie Rules LIVE, Camera Zoom, Discover, Flick Fishing, iiQuota, Mummy's Revenge, Police Scanner, Stickwars
# Used by: The Moron Test, TouchGrind, Touch KO, TwiterFon, FaceFighter, Grunts, SmackTalk, Postman, vDrummer, Wobble, iFarty, iAppUSA
# Used by: Lonely Planet guide, Oz Weather, Slingshot Cowboy, Flash for Free
127.0.0.1 beacon.pinchmedia.com
# Flurry analytics
# Commonly Tracks: iPhone's unique ID, iPhone Model, OS Version, App version
# Used by: California Gold Rush, Paper Toss: World Tour, Ragdoll Blast, Stand O Food, Tower Bloxx 3D, MouthOff, Myst, Nintaii, Dead Panic
# Used by: 20Q Mind Reader, eBuddy, Chess Free, Crack the Code
127.0.0.1 data.flurry.com
# GameLoft
# Commonly Tracks: iPhone's unique ID, iPhone Model, OS Version, App version
# Used by: Assassins Creed, Guitar Rock Tour 2, Hero of Sparta, Let's Golf!, NFL2010, Brothers In Arms, Lost Empires, Gangstar
127.0.0.1 confirmation.gameloft.com
127.0.0.1 ingameads.gameloft.com
127.0.0.1 igpiphone.gameloft.com
# ngmoco
# Commonly Tracks: iPhone's unique ID, iPhone Model, OS Version, App version
# Used by: Rolando 2, StarDefense
127.0.0.1 apps.ngmoco.com
127.0.0.1 config.ngmoco.com
127.0.0.1 wordpress.ngmoco.com
# Storm8 applications
# Commonly Tracks: Steals mobile phone number!!, app id, udid, iphone model, firmware - Danger!
# Used by: iMobsters, Kingdoms Live, Racing Live, Rockstars Live, Vampires Live, World War, Zombies Live
127.0.0.1 storm8.com
127.0.0.1 vl.storm8.com
127.0.0.1 wwar.storm8.com
127.0.0.1 rl.storm8.com
127.0.0.1 kl.storm8.com
127.0.0.1 zl.storm8.com
127.0.0.1 rol.storm8.com
127.0.0.1 static.storm8.com
## Individual application entries ##
# Camera Zoom - pinchmedia enabled, contacts a 3rd party, phones-home, sends unique identifiable information including your geographic location
127.0.0.1 itunes.kenditech.com
127.0.0.1 [url=http://www.kenditech.com]www.kenditech.com[/url]
# ColorSplash - retrieves news/alerts from home server, otherwise behaves
127.0.0.1 [url=http://www.juxtaposer.info]www.juxtaposer.info[/url]
# Dead Panic - sends iPhone udid, model, version, application name & version
127.0.0.1 smasher.com
# Deer Hunter 3D Free - Sends UDID, App version, info, start & stop times to home server
127.0.0.1 swervenet.glu
# Discover - pinchmedia enabled, 9 requests on start, adverts, multiple-phone home requests, sends iPhone UDID, model, version, application version, time started & stopped
127.0.0.1 videoegg.adbureau.net
127.0.0.1 videoegg-images.adbureau.net
127.0.0.1 connect.purpletalk.com
# Doodle Jump - 1 request @ start, repeats requests every level, phones-home & some basic usage tracking
127.0.0.1 [url=http://www.limasky.com]www.limasky.com[/url]
# DrawRace - on-line scoring, including unique id, e-mail, latitude & longitude info to home server
127.0.0.1 touchrally.appspot.com
# eBuddy - sends app id, UDID, iPhone model & ver to 3rd party + all your account info in plain text! - not blocked by PrivaCy
127.0.0.1 i-connector.ebuddy.com
# F.A.S.T - phones-home 3 to 4 times, checks if app is pirated, sends unique ids, tracks usage
127.0.0.1 ijet.iphone.sgn.com
127.0.0.1 bar.iphone.sgn.com
# Facebook - makes many "unusual calls" tested okay with this entry
127.0.0.1 0.channel15.facebook.com
# Fantastic Contraption - sends iPhone udid, version
127.0.0.1 [url=http://www.shapeshape.net]www.shapeshape.net[/url]
# Flash for Free - pinchmedia enabled, loads mobile ads, may connect to url trackers
127.0.0.1 freetheapps.com
127.0.0.1 budurl.com
# Flick Fishing - pinchmedia enabled, phones home, connects to apple, sends apple information, sends unique ids, tracks usage
127.0.0.1 [url=http://www.freeverse.com]www.freeverse.com[/url]
# Hysteria Project - downloads RSS feed from server,
127.0.0.1 [url=http://www.bulkypix.com]www.bulkypix.com[/url]
# iBeer Updated - 2 requests, phones-home & tracks usage
127.0.0.1 [url=http://www.hottrixdownload.com]www.hottrixdownload.com[/url]
# iBlogger - sends identifiable data to a 3rd party, blog edits work as normal
127.0.0.1 t.medialytics.com
# iFarty - ads, mutiple data leaks, iphone ID, os, firmware, crack & jailbreak info
127.0.0.1 widgets.amung.us
127.0.0.1 whos.amung.us
127.0.0.1 wau.tynt.com
# Jaadu RDP - makes 8 requests, phones home, tracks usage, checks for new version
127.0.0.1 [url=http://www.jugaari.com]www.jugaari.com[/url]
127.0.0.1 [url=http://www.statcounter.com]www.statcounter.com[/url]
127.0.0.1 c.statcounter.com
# MobilityWave Applications - Blackjack, Word Wrap, Hangman, Video Poker, Lists, Poker, TouchTrain +above generic ad's
127.0.0.1 [url=http://www.mobilityware.com]www.mobilityware.com[/url]
127.0.0.1 data.mobclix.com
# MX Tube - makes 8 HTTP requests, ad servers & Google analytics
127.0.0.1 mxtube.iphone.mxweas.com
127.0.0.1 img1.iphone.mxweas.com
# NoiseBlaster & Photogene, loads web content from home server
127.0.0.1 web.me.com
# Pocket God - Sends unique identifiers/application information to 3rd party servers on app start & in-game
127.0.0.1 api.openfeint.com
# PSx4iphone - makes 18 HTTP Requests, then continues to request periodically
127.0.0.1 [url=http://www.zodttd.com]www.zodttd.com[/url]
# QuickOffice - "Pings" the server every start-up, sends version & tracking info
127.0.0.1 [url=http://www.quickoffice.com]www.quickoffice.com[/url]
# Police Scanner - pinchmedia enabled, multiple, serious data leaks, sends ID's, pirated/jailbreak info and lat & long to multiple 3rd parties
127.0.0.1 data.ps.juicydevelopment.com
127.0.0.1 data.talkradiofinder.com
# SBSettings - phones home, makes periodical requests
127.0.0.1 extra.thebigboss.org
# Sheep Launcher - Phones-home on start, seems safe, doesn't send UDID.
127.0.0.1 kronosgo.com
127.0.0.1 [url=http://www.kronosgo.com]www.kronosgo.com[/url]
# TouchGrind - pinchmedia enabled, Advertising, phones-home, sends your iPhone UDID, model, O/S, app name & version, start and stop times as well as if you have jail-broken your iPhone and if the application is pirated
127.0.0.1 adtgr1.ilabs.nu
# Touch KO - pinchmedia enabled, sends data to multiple 3rd parties, iPhone UDID, model, version, application version, time started & stopped, jailbreak & pirate status
127.0.0.1 blurst.com
# TwiterFon - pinchmedia enabled, loads lots of ad's, sends wads of identifiable data about you/your iPhone to MANY 3rd parties
127.0.0.1 adbatch.qwapi.com
# Waterslide Extreme - UDID, iPhone ver, firmware, lang, connection, start & stop, stage
127.0.0.1 tracker.fishlabs.net
# WifiTrak - loads ad's from home server, otherwise works well
127.0.0.1 [url=http://www.bitrino.com]www.bitrino.com[/url]
Results: Before, battery drain is about 50% of the battery on a day with (primarily) data usage. After: Drains 5% to 10% a day.
