The e-up! underwent a significant battery upgrade during its production cycle. Knowing which version you own is critical for journey planning: e-up! | Official Media Site NEWSROOM
Older e up! models used the We Connect app. Note that 3G connectivity has been shut down in many regions. The manual covers this, but be aware that remote features may no longer work. Always consult the manual’s section on "Connectivity" to understand what is still functional. volkswagen e up manual