Check UPSv4 Battery Age

This plugin checks the battery condition and the expiration date on a UPSv4 MIB compliant UPS (Delta Electronics devices and some Chloride models)

The expiration date is checked through the days that have exceeded the battery expiration date. Warning an critical arguments are defined
by the number of exceeding days and the partial state is calculated comparing if the real value is greater than the defined values.
The condition can be 'ok', 'weak' and 'replace', corresponding to OK, WARNING and CRITICAL states, respectively.
The most critical state of condition and expiration requisites is the plugin state.

A README file and an usage help and examples are included in the package. Plugin is fully Nagios 3.x (ePN) compatible.