[Shred]

What software are you using?

...Cumulus have a webtag <#battery>, which have this data.

I'm running Cumulus MX. I started out creating a custom web page with the <#battery> tag in it, but I wanted something more flexible.

I ended up creating an extra table for "system data" in MySQL, then added the following custom SQL code and configured it to run every 5 minutes:

Configured under: Settings > MySQL Settings > Custom upload - minutes interval

Code:

INSERT INTO System (LogDateTime, BatteryVolts) VALUES( NOW(), '<#battery>');

I'm happy to elaborate further if anyone is interested, but it's hard to answer the original question without knowing what software vk2kzo is running.