my.getBatteryInfo

my.getBatteryInfo({
  success(res) {
    console.log('Battery level:', res.level);
    console.log('Is charging:', res.isCharging);
  }
});

Page({
  data: {
    batteryLevel: 0,
    isCharging: false,
    batteryIcon: 'battery-full'
  },

  onLoad() {
    this.updateBatteryStatus();
  },

  updateBatteryStatus() {
    my.getBatteryInfo({
      success: (res) => {
        let icon = 'battery-full';
        if (res.level <= 20) icon = 'battery-empty';
        else if (res.level <= 50) icon = 'battery-half';

        this.setData({
          batteryLevel: res.level,
          isCharging: res.isCharging,
          batteryIcon: res.isCharging ? 'battery-bolt' : icon
        });
      }
    });
  }
});

Page({
  onShow() {
    this.checkBattery();
  },

  checkBattery() {
    my.getBatteryInfo({
      success: (res) => {
        if (res.level <= 15 && !res.isCharging) {
          my.alert({
            title: 'Low Battery',
            content: `Your battery is at ${res.level}%. Some features may be limited to save power.`
          });
        }
      }
    });
  }
});

Page({
  data: {
    powerSaveMode: false
  },

  onLoad() {
    my.getBatteryInfo({
      success: (res) => {
        // Enable power save mode if battery is low
        if (res.level <= 20 && !res.isCharging) {
          this.setData({ powerSaveMode: true });
          this.disableAnimations();
          this.reducePollingFrequency();
        }
      }
    });
  },

  disableAnimations() {
    // Disable non-essential animations
  },

  reducePollingFrequency() {
    // Reduce background refresh rate
  }
});