Pedal Car into Remote Control ( VEVOR )

[CarolNSA]

Best is post it to youtube and then put the yt page link here and it will show it inline in your posts.





If you have a wattmeter, you can use that to determine amps drawn during usage. Some show average and peak, some just peak.

When you know how many amps are being used, and you know how long you need it to run, you can multiply the two to get Amp Hours. (Ah).

Knowing that, youc an then see how many batteries of a certain Ah size you'll need to get the runtime you want.

If you can't measure hte battery amps being drawn by the motor controller, you can look at the motor *controller* to see what it's curretn limit is labelled as, and use that as a guesstimate of Amps, and multiply *that* times the hours you need it to run. (if less than an hour, the number is less than one, like .75 for 3/4 of an hour, etc).


you can also reverse the numbers...if you are getting 10 minutes of runtime, tha'ts 0.17 hours. The pack is 4Ah, so assuming you were able to use all 4Ah, that's 4Ah / 0.17 hours (to cancel out the hours and leave you with only amps) = 23.5A.

So if you want to run for an hour, you need about 24Ah or more, or at least six of those 4Ah battery packs.

THANK YOU for the details. I Will be looking into YT so I can post the videos. I THINK I might've had one a while ago , but no idea honestly ! Haha

Same as I MIGHT have a wattmeter if that is the same as a multi-meter ? Not sure though. That's something else I'll be going to YT about. It seems that when I said Youtube is my best friend , I was right. There is a way to set it up so that I will be able to get the -draw- ??? and work on figuring it out.

When you are talking about the motor controller , is that the ESC ?

The math you did ,telling me how to figure it out , THAT DID HELP. It's in my brain ( grin ) but still rumbling around in there ! I'm a bit older so it takes me a bit more time to digest / understand things.

I DO have the 6 batteries you mentioned and am thinking when the first one is ran down I can change it out , and pop that one in the charger. I don't think with everything going on at these events , that I'll be running it back to back for the full time frame...

Thank You again for getting back with me.

 

[CarolNSA]

If there was more gear reduction between the motor and the wheels, the battery would last longer.

Thank You and I wish I would have did a bit more research before I started this project. Having a different motor would be cool and would keep it from going so fast initially. However , that NEEDS to be the motor that I use. ( It's paid for ) Hahahahaha I've been able to somewhat control the speed decently enough to not worry about hitting anyone when driving it...

 

[amberwolf]

It seems I NEED to buy a battery that has AT LEAST the 28 amps that the motor is rated for...

Just remember that A is Amps, is current.
Ah is Amp-hours, is capacity.
Very different things, so be sure you're looking at the right numbers on batteries; you have to match *both* numbers to whatever the equivalent need your system has.

 

[amberwolf]

Same as I MIGHT have a wattmeter if that is the same as a multi-meter ?

Not really. Multimeter usually refers to a voltmeter / ammeter / ohmmeter thing, that may also have other functions.

Wattmeter usually refers to a device that has volt and amp measuring, but also does watts, watthours, amphours, and sometimes other functions (like the cycle analyst from ebikes.ca that also does speed reading, temperature, etc, but is also much more).

WMs can be had for ten bucks, maybe even less depending on your needs and voltages and currents to monitor and what you want to see on it.

If you havea multimeter that can handle the amps / current your systme may be drawing, you can use it for that, but most of them stop at 10A unless they're a clamp-on type.

When you are talking about the motor controller , is that the ESC ?

Yes. ESC electronic speed control = controller.