Adding variables from other custom pollers into an alert

Hello.

We are monitoring a customer's UPS through a number of custom pollers.
We have one called UPS_TimeOnBattery that's measured in time ticks, and we've set a warning threshold at 6000 and critical at 12000.
This is used in an alert, so when that poller status is critical we fire off an alert.

We have another poller called UPS_BatteryRunTimeRemaining that's also measured in time ticks.

Ideally we'd like to add the current value of this poller into the email alerts (converted into minutes and seconds) for the first poller, so they know how long they have to restore mains electricity before things go very quiet but it's a bit beyond me at the moment.

Any help would be gratefully received - we're using NPM 11.5 for this customer.

Thanks