battery: use faster ioreg command.
battery: use faster ioreg command.

Chris911/iStats,mongrelx/iStats,zhulinpinyu/iStats,Chris911/iStats,androidyue/iStats,haipham/iStats,maoshouse/iStats,ConnerStephens/iStats,maoshouse/iStats,haipham/iStats,aorzh/iStats,mongrelx/iStats,aorzh/iStats,zhulinpinyu/iStats,ConnerStephens/iStats,androidyue/iStats