Currently, there is no way for the Android node to stop processing when the battery on the device is in a critical state. This is definitely a problem since battery life is a critical factor on mobile devices.

We propose to add configuration options to specify the node's behavior based on the state of the battery. An idea is to allow specifying 2 thresholds for the battery's charge level, e.g. "warning" and "critical", and have the node behave as follows:

• when a "warning" level is reached, the node will stop taking new jobs, and will simply monitor the baterry charge until the alert disappears or the "critical" level is reached. We may add an option to have the node attempt to cancel the currently executing job, if any
• when a "critical" level is reached, the node will send a notification to explain the situation, then terminate itself, i.e. the node app will terminate

Some useful references:

• how to terminate an app programmatically (stackoverflow)
• Monitoring the Battery Level and Charging State