Portable Emergency On-Board AC EV Charger, 85V-265V A genuine on-board backup charger that needs no installation, no fixed wiring and no electrician. Store it in the trunk, plug it into any available household socket and replenish the battery pack when public charging infrastructure is far away. The 85V-265V dual-frequency input stage lets the same unit travel across countries and grid standards without an external transformer, while the plug-and-charge mode starts delivering