From the very beginning all I wanted was a PV that was dependable, simple, and not much fiddle factor. I didn't need or desire another hobby such as PV collecting...lol. All of my Go-Go batteries(8) were getting a year old and and a couple of them were getting tired. I knew it was just a matter of time before they all bit the dust. I saw no need to replace them all only to use adapters for 510/808 accessories. In reality I wouldn't have a Go-Go, just the propriety battery by using adapters. As mentioned earlier, If I could get some of the older style(lower ohm)Go-Carts, I would invest in more Go-Go batteries and enjoy the simplicity and convenience as I use to.
Marty
DV has the Lr Go go dual coil cartos but personaly I like the regular cartos best but others love the duals.