onchargelevel

Syntax:

sysinfo.chargelevel = "batteryLevelChange()";

function batteryLevelChange()
{
  // ...
};

Description:

The onchargelevel property is an event handler for the event of when the battery level is changed. The callback function is assigned by providing the function's name wrapped in a string.

For more general information on power consumption and widgets, see Saving battery time.

Example code:

window.onload = function(){
 // Get the current battery level
 var batteryLevel = sysinfo.chargelevel;
 alert("Current battery level is " + batteryLevel + "%");
 // Assign an even handler for the charge level change
 sysinfo.onchargelevel = "batteryLevelChange()";
}
function batteryLevelChange()
{
 var batteryLevel = sysinfo.chargelevel;
 alert("Current battery level is " + batteryLevel + "%");
}