I had a local guy print me up a couple of mounts from Thingiverse for my ego batteries. I got 20 miles on my Lyric 55v 1000w motor scooter on a pair of 7.5ah batteries. I was going to run them until the battery LVC dropped them or the controller did, but it was getting late and 1h15m on a scooter is a long time. But I am amazed at how well it worked out