7 月 19 日消息，科技媒体 Android Authority 今天发布博文，表示谷歌计划在安卓 15 系统中进一步优化充电体验，可以让 Pixel 系列手机用户设置充电上限为 80%。
自适应充电
谷歌于 2020 年 12 月发布 Pixel Feature Drop 功能更新，为 Pixel 手机引入了“自适应充电”（Adaptive Charging）功能，会基于闹钟设置限制充电上限至 80%。
用户在晚上 9 点到凌晨 4 点之间给手机充电，且闹钟设置时间为凌晨 3 点到早上 10 点之间，那么在闹钟响铃之前手机电量只会充到 80%，在闹钟响铃之后才会继续充电至 100%。
谷歌去年改进了该功能，不再基于闹钟设置，而是根据用户的充电习惯进行设置。
充电上限设置为 80%
而在安卓 15 Beta 4 更新中，SystemUI 应用程序中出现了新的字符串，可以限制手机充电上限为 80%，从而改善电池寿命。
根据应用程序内的代码，”充电优化” 页面将位于 “设置”>”电池” 下，并有一个 “使用充电优化” 的开关。
<string name="charge_limit_discovery_notification_enable_button">Enable now</string>
<string name="charge_limit_discovery_notification_help_url">https://support.google.com/pixelphone?p=eu_ecodesign_charging</string>
<string name="charge_limit_discovery_notification_text">Try turning on the 80% limit feature to protect battery health and lifespan. You can manage this in settings anytime</string>
<string name="charge_limit_discovery_notification_title">Protect your battery during charging</string>
<string name="charge_limit_mode_summary">Your phone will only charge to {batteryLimitLevel}% battery</string>
<string name="charge_limit_mode_title">Limit to {batteryLimitLevel}%</string>
<string name="charging_optimization_category_key">charging_optimization_category</string>
<string name="charging_optimization_footer_adaptive" formatted="false">To extend battery lifespan, Adaptive Charging learns your charging routine and pauses at {batteryLimitLevel}% and finishes to {batteryFullLevel}% an hour before you usually unplug.</string>
<string name="charging_optimization_footer_charge_limit">To help extend battery lifespan, your phone will only charge to {batteryLimitLevel}% battery</string>
<string name="charging_optimization_footer_key">charging_optimization_footer_preference</string>
<string name="charging_optimization_footer_link_description">Learn more</string>
<string name="charging_optimization_footer_off">To help extend battery lifespan, turn on charging optimization</string>
<string name="charging_optimization_illustration_key">charging_optimization_illustration</string>
<string name="charging_optimization_main_switch_title">Use charging optimization</string>
<string name="charging_optimization_main_switch_title_charge_limit_only">Limit to {batteryLimitLevel}%</string>
<string name="charging_optimization_summary_adaptive">Adaptive Charging</string>
<string name="charging_optimization_summary_charge_limit">Limit to {batteryLimitLevel}%</string>
<string name="charging_optimization_summary_off">Off</string>
<string name="charging_optimization_switch_key">charging_optimization_switch</string>
<string name="charging_optimization_title">Charging optimization</string>
启用后，页面上将出现两个单选按钮，允许用户选择现有的“自适应充电”模式或新的“限制到 80%”模式，附上相关截图如下：
