Are there any options to upgrade the battery size?
The stock battery in all Blix Models is the Samsung 48V/14Ah, which offers a great range. This battery is capable of trips between 20-45 miles per charge, depending on the conditions of your route (hills, rough terrain, use of throttle, etc.), and the Dual Battery Packa nearly doubles this range.
We do not currently offer options to upgrade the battery, but there is always the possibility that we could offer upgrades in the future!