[ted]

Is it an AGM battery, it could work for an Optima charger too.
The Optima charges at variable rate, then conditions the battery then goes in to maintenance mode.
It is the correct charger for a AGM batteries.
I had the battery tenders but no longer use them.
https://www.optimabatteries.com/en-us/support/charging/best-optima-battery-charger

https://www.optimabatteries.com/en-us/experience/2016/12/do-i-need-special-charger-agm-battery