Some automakers plan to put on board generators as "range extenders" to burn gas to recharge the batteries.

"Some automakers, including BMW, are producing electric vehicles with internal combustion “range extenders.” These are essentially efficient generators that can burn gasoline to replenish the battery while on the road. Ram may be eyeing a similar setup for future vehicles."


https://www.motorbiscuit.com/heres-everything-we-know-about-the-electric-ram-pickup-truck/

I look forward to future "range extender" jokes...