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Power consumption of a Scalextric car

5749 Views 23 Replies 9 Participants Last post by  Jack155Q4
Hi there,
I am setting up a 12 meter (roughly) long track for a local Charity event and it needs to be powered by means other than the mains.
I am thinking of a car battery or a small generator such as this one.

Does anyone know the maximum consumption of power from a scalextric car? I know there are many many variables but I am trying to get an idea of what I need to run 1 car at a time (time trial) one and off throughout a day.

Many thanks,
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I've run a 4 lane track at a school fete all afternoon on a car battery without flattening it, so I don't see a problem with a battery to run 1 car at a time (time trial) one and off throughout a day.

Cars only take maximum current for a very brief period when accelerating from rest. The average is far more important if you want to know how long before the battery goes flat. The peak current for a scalextric car is about 2 amps, but it only takes that much for such a brief period that it doesn't record on a normal meter. As you say, there are lots of variables that can change the average, as a ball park figure half an amp average should be somewhere near. Half an amp for 8 hours is only 4 amp hours, so even quite a tired car battery will manage that easily

P.S. Just seen Greg's post - indeed a fuse or circuit breaker would be a wise precaution if running off a battery. 2 amp rating will give your one car all it needs and protect against shorts.
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