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Topic: Power an e300 Electric Razor Scooter from an AC Source? (Read 2978 times) previous topic - next topic

creepco

Hello,

I've hacked an e300 electric Razor Scooter so I can turn on and off the motor via an Arduino, but would like to plug it directly into an AC wall plug rather than swapping out or recharging the batteries that come with it.
It takes 2 DC 12v 7amp batteries, which I believe provides it 24v of power.
I'm assuming I would need some kind of inverter that I would attach to the battery leads, but I've never done something like this. Could anyone point me in the right direction, maybe a link to a product that would work?

This is for a gallery installation where the scooter would be running in a circle.

Thanks for any help!!
Brent

MarkT

There are many standard 24V chargers for wheelchairs and mobility scooters that
ought to fit the bill.  Ideally you would add a charging connector that allows the scooter
controller to detect the charger is connected and disable the scooter while this is
happening.
[ I will NOT respond to personal messages, I WILL delete them, use the forum please ]

runaway_pancake

Fabricate your own connector to the scooter battery, a "lead out", so you could disconnect it from the scooter and connect it to your charger (which, evidently, you have already.)

molex, quick-ons, etc

"Who is like unto the beast? who is able to make war with him?"
When all else fails, check your wiring!

creepco

Thanks for the suggestions.
I just re-read my original post and I wasn't clear with my question, sorry.

I don't want to recharge the existing batteries on the scooter.
I want to remove the batteries from the scooter completely and power the scooter directly from AC power/wall power. This way I can have the scooter run indefinitely.

Any ideas on that? And again, sorry I was unclear with my original post.

michinyon

So,  you plan to drag the cable around with you ?

runaway_pancake

"Who is like unto the beast? who is able to make war with him?"
When all else fails, check your wiring!

creepco

Thanks, a slip ring looks like a great way to go to keep the cord from getting tangled.
I'm still wondering how to convert AC wall power to replace the DC batteries.
I'm wondering if I can basically take an AC to DC converter like this:
http://www.amazon.com/12-Volt-Power-Supply-Standard/dp/B00B8TRF0A/ref=pd_sxp_grid_i_0_2
and run the positive/negative outputs to the battery leads into the scooter?
Any thoughts?

Zapro


Thanks, a slip ring looks like a great way to go to keep the cord from getting tangled.
I'm still wondering how to convert AC wall power to replace the DC batteries.
I'm wondering if I can basically take an AC to DC converter like this:
http://www.amazon.com/12-Volt-Power-Supply-Standard/dp/B00B8TRF0A/ref=pd_sxp_grid_i_0_2
and run the positive/negative outputs to the battery leads into the scooter?
Any thoughts?


Yes you can do that. But expect the motor to draw in excess of 40A when accellerating, and that would render your power supply useless. If you are lucky, it wille shut down and protect itself - if not, it will break down.

// Per.

creepco

Thanks for the feedback. I met with someone that works a lot with electrical stuff and we are going to try to do it with this power supply from Mouser http://www.mouser.com/ProductDetail/Mean-Well/SE-350-24/?qs=erfQA2AIGbWwfIN%2FyOBPyQ%3D%3D&gclid=Cj0KEQjw4aqgBRCvwLDi_8Tc54YBEiQAs6DLvNvItqmtmQhOImDZFXL_OspUIP_cYTjf5lXFjf9_YbUaAuxQ8P8HAQ and this motor controller http://www.amazon.com/gp/product/B00HWLS24G/ref=ox_sc_act_title_1?ie=UTF8&psc=1&smid=A1PPATHVNOJ7UI

He seems to think this should give it enough headroom to not blow things out. We'll see... I'll be putting it together next week and will post if it works.

Thanks everyone for your help!

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