I’m not sure how I didn’t see this video before as it was posted back in 2015 but in it, YouTuber Electroboom shows, you can jump start a car with AA batteries.
Now, if you aren’t prepared enough to carry jump leads in your car (tut tut) but prepared enough to carry plenty of AA batteries and some other equipment you may need to use this in an emergency.
As it turns out, all you need to do is hook the 12 AAs together in series using a soldering iron or electrical tape, connect it to your car’s normal battery, and wait 10 minutes. In theory, that should give you enough juice to turn the engine over.
A car battery can produce between 50 and 150 amps of cranking power in a short burst. You would need a hell of a lot of AA batteries to completely replace a car battery however, this trick will allow you to boost an existing car battery that doesn’t quite have the power to start a car.
Interested? Check out the video below.
If you want more details as to how and why this works, Electroboom has written a great piece over on his website here.
I charged the car battery for 10 minutes, and I roughly had an average of around 1.5A going into the battery. This means that I could draw an average of 90A from the car battery for 10 seconds which is more than enough for most engines for a single crank.
If you don’t have jump leads OR any spare AA batteries lying around but you have a 12V cordless drill battery, the following video may be of use.