There are 12 volt electric gasoline pumps with explosion proof motors but they are expensive, there are also hand operated fuel pumps both are for drums or fuel storage tanks like heavy equipment operators and maintenance men have on there trucks and run in the hundreds of dollars if not thousands.
There are also some hand operated “transfer pumps” hose to hose, rotary and piston operated at WW Grainger, again in the hundreds of dollars
There are some other options offered for a regular 5 gal. Gas can, but nothing electric that I have seen, just manual hand pump operation.
Where? Northern Tool (HAN-D-PUMP, and PETRO PUMP w/can) and Tractor Supply (HAN-D-PUMPT, spelling??? that is how it is listed on there site) both Companies have hand operated gas can pumps for 5 gal. Plastic cans.
They replace the spout on the can and have a hose and handle for around 10 bucks. I have seen one report that said they pump about 1 gal per minute, I can not in any way recommend them for, I have never used one and am just pointing them out incase you have not seen them. They look a bit cheap, and takes a bit of effort to operate, but may work just fine. For 10 bucks it may be worth checking out.
SAFTY MODE ON
Just a note of caution: Some folks do not know this, plastic can store static charge on it's surface, My wife shocks her self every time she slides out of the car then touches the car due to the seats, dash, door handles, and carpet. There have been cases where this static charge has started a fuel fire while filling these plastic gas cans if they are not set on the ground, and the person doing the filing has not discharged the static off their person. One case was a man (made the news here) filling 4 or 5 cans in his truck bed with them sitting on the bed liner (Insulated electrically), as he filled the cans a charge built up on the surface of the cans that were not grounded and jumped a spark from the can to the grounded filler nozzle when he moved the nozzle to fill another can. This situation has also caused fuel fires when filling a cars tank in past years where they are using more and more plastics on car fuel tank filler tubes.
Just the friction of the fuel flow across a non-grounded piece of plastic can build up a charge on the surface and in time it will jump a spark. Always set gas cans on the ground when filling and make sure to discharge any static that may be on you by touching the ground or a grounded object before filling them.
Safety mode off