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Charging in Car or from 12v Power SourcesUpdated 11 days ago

If you want to charge your FD battery from a car or mobile platform, here are some things to consider.

If you're charging from a normal Lead Acid or AGM car battery, a single Standard Assist PLUS 12.6 Ah battery can drain a car battery by at least 50% in just one charge - so you don't want to make your car go flat. It's best to have a 2nd battery installed in your car to avoid this.  If you're looking for a 2nd battery, a deep discharge battery is preferred over a normal car battery as they are designed for cold cranking amps as opposed to sustained amp draw.  

You cannot charge a battery from your normal 12V car cigarette lighter. Most cars 12V  cigarette lighter plugs can't handle more than 100 watts sustained and your FD+ charger will draw about 160 watts sustained. 

If you're purchasing a 100 - 240 V inverter so that you can charge your battery from a 12 - 24 V source make sure it's a good quality “ pure sine wave “ inverter of at least 300 watts. 

Really cheap, clipped sine wave inverters are not recommended as they have very poor power delivery and can damage electronics.  

Recommended products:

This one would charge 2 x max power 

This one will do 4 x max powers

Remember cars can get VERY hot inside when closed up and we do not recommend charging batteries inside a closed up vehicle as the charger or battery could get too hot.  Always make sure the chargers have ventilation when being used. 

Please contact us at [email protected] for further info about this topic.

Related Articles - Click to read:
Lithium Battery Use, Care and Storage
Testing the Voltage of a Foil Drive Battery or Charger
Charging the Foil Drive Batteries
Foil Drive Lithium-Ion Batteries Explained

To learn more, check out the other articles on our Help Centre which can be found under the 'Support' tab on the website.


As always, if you have any questions, please reach out to us at [email protected]


Happy Foil Driving!

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