there are so many 12V products that the potential to use these modules is awsome.
Started with replacing the 2 prius packs that were running my lawn tractor the module fit diagonally and started the mower more strongly than a new lead acid (lower internal resistance)
My lawn takes a couple of hours to mow with 10 or more stops to empty the grass catcher bags.
The battery did a great job and was maintained at 14.4v by the tractors voltage regulator.
A 24 volt mobility scooter that was designed for gel cells was a drop in replacement as the gells were set up end to end and with only slight modification these dropped right into the scooter