Sony 在官方 Support 討論區回應有關 Xperia Z, ZL, ZR, Tablet Z 耗電問題。在最近推送的 Android 4.4.2 更新中，幾部裝置 Xperia Z, ZL, ZR, Tablet Z 都出現嚴重的耗電問題，不少用家都作出投訴。
Sony 表示這個耗電問題源於 Google Play Services (4.4.52)。Sony 指現階段用家可以將 Google Play Services 最新的 Update 卸載，直至 Google 放出最新的版本。
又或在 “設定 > Google 帳戶 > 廣告 > 勾選 “停用按照興趣顯示的廣告”，並在 “設定 > 備份與重設 > 不勾選 “備份我的資料”。
We have investigated the issue with Google Play Services using alot of battery and we have identified that the root cause of this is related to the latest version of Google Play Services (4.4.52).
Until a new version of Google Play Services is provided by Google we urge users to either uninstall the latest update of Google Play Services (might limit use of Google Services like Youtube) or go to Settings > Google (accounts) > Ads > Tick the box for Opt out of interest-based ads and also disable back up of your data by going to Settings > Backup & reset (Personal) > uncheck the box for “Back up my data”.If you are unable to uninstall the update for Google Play Services from Settings > Apps, go to Settings -> Security -> Device administrators and disable “Android Device Manager”. Also check the settings in the Play Store so that automatic updates is not enabled as this may update Google Play Services again automatically.
Source: Sony Mobile
