Inverter to charge ebike from car

[robgul]

My usual research (and lack of understanding of such things) has left me bewildered .....

I have a car and I have an ebike (Orbea Gain) .... I am wondering about the reality of an inverter that plugs into the cigar lighter in the car and then for the ebike's charger to plug in and charge [I would expect to do this when driving and thus generating electricity]

Is it feasible? Is it going to blow the car or ebike electrics? What do I need to get?

[As an aside I saw a picture of one of the Team Sky cars that had a twin outlet 13amp socket in the side panel of the boot - pretty cool!]

All guidance appreciated.

Rob

 

[anotherkiwi]

https://www.google.fr/search?q=12v+to+220v+inverter+for+car&tbm=isch&tbo=u&source=univ&sa=X&ved=0ahUKEwin5PL22KjbAhVJkRQKHQRGBB4QsAQI3wI&biw=1204&bih=919

 

[robgul]

https://www.google.fr/search?q=12v+to+220v+inverter+for+car&tbm=isch&tbo=u&source=univ&sa=X&ved=0ahUKEwin5PL22KjbAhVJkRQKHQRGBB4QsAQI3wI&biw=1204&bih=919

Yep, I did that first - there's millions of them BUT what do I need to know to buy the correct one? ... which was the original question.

 

[cyclebuddy]

There was a thread on this very topic on this forum about 6 months ago...

But the essence is this: A 36-volt 2-amp e-bike charger draws about 90 watts of power. A 12-volt car cigarette/accessory socket is typically limited by it's wiring/fusing to supply around 150 watts of power...

If your e-bike charger uses less than 150 watts of power (say a 36v/2A charger), you can use a cheaper in-car inverter like this Bestek one I use (Amazon - about £40):

If you have a higher power e-bike charger - such as for a 48-volt battery and/or perhaps a 4-amp charger, even a small inverter like this one would really need connecting directly to the car battery.

You also need to be aware that even a smaller inverter can suck a car battery dry in just a few hours, so as you suggest the engine (alternator) really does need to be running... and if your e-bike battery takes say 5-7 hours to charge, you might need to be driving a good few hundred miles to do that.

Hope that helps.

 

[anotherkiwi]

You can find one for less than 20€ for the Orbea Gain battery any of these will do the job but https://www.aliexpress.com/item/BESTEK-300W-Car-Power-Inverter-12V-220V-Converter-DC-AC-Invertor-12V-To-220V-230V-Adapter/32833557919.html another bestek 300W one