The S2/R-Series Battery 48V / 20Ah is the literal powerhouse behind your SUPER73 ebike's standout performance. It is removable for your charging convenience and is compatible with our standard Super73 charger. When you're ready to ride, just slide your battery back into the tray and enjoy our simple auto-lock feature.

We do not recommend running dual batteries simultaneously. It is possible that two batteries will have two separate firmware versions. Running one battery at a time is the recommended way to use the S2/R-Series Battery. Super73 does not sell a “Y” adapter to connect two batteries together and does not recommend using any other solutions to run two batteries at the same time. Doing so could damage the battery and will not be covered under the Super73 limited warranty.