I managed to pick up a free power wheels car for my 5 year old by posting an ad for “broken power wheels wanted for free”. Got it home, cut of the proprietary power wheels batter plug and hooked it up and it wasn’t broken, works fine. Now with a little sawzall work and a mini car battery I have a discount power wheels.
However, the drive motors, one for each wheel, are about the size of a D cell battery. This think is way to weak. So I want to keep it slow and somewhat safe. If I just put bigger motors on the existing gear boxes I expect that they will just explode. I am also trying to do this as cheap as possable. I am salvaging dc motors and it is hard to find 2 matching ones. I have got one out of a treadmill that is likely a tad too big. The other issue is it is 90vdc, and I have 12vdc and don’t want to get a fancy lithium battery pack. I was thinking I could use a boost converter like this:
https://www.amazon.ca/dp/B07568P3QL/ref=cm_sw_r_cp_api_FhdrBb64CBP3Q
If the booster is rated 900 watts but my motor is labeled 18amps, 100volts, is the motor really 1800watts or is that peak only? Can you think of a better way to get some more power on a budget. Oh, i was thinking of using mountain bike sprockets and chain as a gear box. That’s step 2...
However, the drive motors, one for each wheel, are about the size of a D cell battery. This think is way to weak. So I want to keep it slow and somewhat safe. If I just put bigger motors on the existing gear boxes I expect that they will just explode. I am also trying to do this as cheap as possable. I am salvaging dc motors and it is hard to find 2 matching ones. I have got one out of a treadmill that is likely a tad too big. The other issue is it is 90vdc, and I have 12vdc and don’t want to get a fancy lithium battery pack. I was thinking I could use a boost converter like this:
https://www.amazon.ca/dp/B07568P3QL/ref=cm_sw_r_cp_api_FhdrBb64CBP3Q
If the booster is rated 900 watts but my motor is labeled 18amps, 100volts, is the motor really 1800watts or is that peak only? Can you think of a better way to get some more power on a budget. Oh, i was thinking of using mountain bike sprockets and chain as a gear box. That’s step 2...