Jump Starting the Champion 3400-Watt Dual Fuel Generator - How Often to Run to Keep Battery Charged?

In this video I show how to jump start the Champion 3400-Watt Duel Fuel Generator.
Since the motor finished breaking in (5 hours of run-time), I have been running it once a month to keep the battery charged. For just over a year, that was enough until this month when the generator wouldn't start!
So how often do you need to run it to keep the battery charged? Watch this video and find out.

Link to the generator:
https://www.amazon.com/gp/product/B01FAWMMEY/

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Link to my Etsy Store:
https://www.etsy.com/shop/BetaCygniDesigns

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End Screen Video Acknowledgement: Cosmic Reef Video produced by NASA and the Space Telescope Science Institute (STScI).
https://hubblesite.org/contents/media/videos/2020/16/1277-Video