In short, yes a battery powered generator can charge an electric car, but it will depend on how much power the generator provides vs. Some of these portable models, like the DBS2300 Plus with 2,300Wh capacity and up to 2,300W power output are able to charge electric vehicles (EVs) for short distances or emergency purposes. Now, whilst a compliment battery size powered EV piggyback likely will only offer a partial charge at best (Recharge range 5-10 miles per session) due to electric car batteries typically being 40kWh to 100kWh.
All of our battery powered generators are lithium-ion or lithium iron phosphate (LiFePO4) technology in order to provide the most stable and efficient energy output for EV sensitive electronics. As a generator with 3,000+ charge cycles, the DBS2300 Plus powerbank is made to last and will work for quick charges on virtually any job. A situation where this kind of generator could come in extra handy is an emergency, e.g. being able to quickly charge up an EV to reach the next charging point.
Charging speed is a minor consideration as battery powered generator typically run at Level 1 charging speeds which add around 3-5 miles of range each hour. Most portable generators, for example, can handle up to 7.2kW or so — beyond which a station may be safe to use but may no longer charge at the fastest possible boosted level on offer. A portable battery powered generator could offer enough charge to prevent stranding in situations where a quick boost is required, but it is not intended as a substitute for regular charging facilities for long-distance travel.
And as battery tech becomes an increasingly widespread solution for mainstream automakers, that means more and more battery powered generator are being built with higher outputs to keep up. The mobile characteristics of the generators provide EV owners greater flexibility in areas that lack charging infrastructure. Battery powered generator make sense if all you need is to top up or charge in an emergency, as they are not a replacement to conventional EV chargers.