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+# battd
+
+A simple battery daemon written for use with a daemontools-style supervisor.
+
+`run` polls the status of a `check` function with a regular interval. On the
+transition from a successful `check` exit status to an unsuccessful `check` exit
+status the `failed` function is called.
+
+## Installation
+
+Directly install `run`, `conf` and `battcheck` in a service directory.
+
+## Usage
+
+Configure `conf` appropriately. This should contain three functions:
+
+`interval`
+:   Called to determine the polling interval (see below).
+
+`check`
+:   Called to determine the battery status.
+
+`failed`
+:   Called when the battery status has transitioned from a successful to a
+    failing return.
+
+Optionally two variables can be set:
+
+`long_interval`
+:   The polling interval when `interval` returns success (default: 300).
+
+`short_interval`
+:   The polling interval when `interval` returns failure (default: 30).