You can add a PWM Speed controller inline with the second battery which would let you control how much extra voltage is applied with a knob. This is the one I used: RioRand 7-70V PWM DC Motor Speed Controller Switch 30A https://www.amazon.com/dp/B071NQ5G71/ref=cm_sw_r_cp_api_glt_fabc_KKTDHRRE44XGY3HJ9ZJC?_encoding=UTF8&psc=1
For my project, I wired two 18v batteries in parallel to double the capacity, then added the above PWM to reduce the voltage until my little one can handle >12v.
I put one of these on my son's upgraded power wheels. Swapping from the stock 12v to the makita 18v is a pretty big power increase so it allows me to dial the power up as he grows and gets better at driving.
Seems like it would work. You could put a PWM controller on them to get speed control and slow them down to a quiet level.
Just grab a DC motor and something like this, wire together and figure out a face plate.
If you have access to a machine shop that will help a lot. If not you'll have to hack things together.
Nice!
I used these with great success. I just a multi meter to set it at 12V.
RioRand 7-80V PWM DC Motor Speed Controller Switch 30A https://www.amazon.com/dp/B071NQ5G71/ref=cm_sw_r_cp_api_i_OIrdDbM649AY0
I just ended up buying a MightyMax battery at $25 each for longer run times.
You could use a PWM motor speed controller like this to fine tune the power and speed of the motor.
Ok use this for the speed controller https://www.amazon.com/RioRand-7-80V-Motor-Controller-Switch/dp/B071NQ5G71/ref=sr_1_3
Use this to cut off the battery before it dipps to low. https://www.amazon.com/Digital-Battery-Low-Voltage-Protection/dp/B07929Y5SZ
And grab a 20 amp maxi fuse and a few insulated spade terminals.
Then find a small project box to run the thing in.
I've found a bunch of people using DC motor speed controllers like this one:
https://www.amazon.com/dp/B071NQ5G71/
I got this specific amazon listing from the description of this video:
It’s this thing, RioRand 7-70V PWM DC Motor Speed... https://www.amazon.com/dp/B071NQ5G71?ref=ppx_pop_mob_ap_share
Yeah I’ll need to get a new motor and gearbox I think.
Cut the power wheel wiring harness. Strip the red and white wires, place them into speed controller listed below. Then place the wires of the DeWalt battery adapter nto the speed controller. Done. Wire strippers and the two links below is all you need. Will take no longer than 15 minutes.
https://www.amazon.com/gp/aw/d/B09GW7527C/ref=ya_aw_od_pi?ie=UTF8&psc=1
Sure, you should be able to use a PWM controller with the blower motor.
Your other post said you have a '77 244, which should have a 16A blower fuse; so that 10A controller might be enough, but I'd probs grab one that can do 20A+ for some margin. Something like this
A note that a lot of those cheapie Chinese speed controllers aren't super durable, and between vibrations and the fairly hostile electrical environment of an older car you might not get a ton of life out of one.
For less than $20 it might be worth a shot though, if you search "car blower motor, PWM" you should get a few walkthroughs.
This is a common problem. Common enough that no-name Chinese vendors sell exactly what you likely need on Amazon.com for example: https://www.amazon.com/RioRand-7-80V-Motor-Controller-Switch/dp/B071NQ5G71
by converted you're talking about putting something like 18v drill batteries in yea? In my experience it's more common for the plastic inside gearbox to give up first but that's just anecdotal, frying motors by exceeding their designed voltage is pretty common. You can either go back to the old batteries or drop the voltage down via (https://www.amazon.com/RioRand-7-80V-Motor-Controller-Switch/dp/B071NQ5G71), or you can follow the rest of us down the rabbit hole and start upgrading the other components (https://www.mltoys.com/Power-Wheels-F150-and-Ford-Raptor-Upgrades-s/148.htm).
Also what about if I use something like this https://www.amazon.com/RioRand-7-80V-Motor-Controller-Switch/dp/B071NQ5G71 RioRand PWM DC Motor Speed Controller Switch Control 7-70V 30A Fuse to change the volts down to 52?
I think you'd be much better of with a PWM controller than a buck regulator like that.
You can get an off the shelf one like https://www.amazon.com/RioRand-7-80V-Motor-Controller-Switch/dp/B071NQ5G71/ that should be able to handle most pusher motors.
Alternatively, you can easily make a much more compact (mainly due to a lack of heatsinking, but with a good mosfet you really wouldn't need heatsinking...) one of these with a simple mosfet + arduino using PWM. I've done this in two blasters now and it works very well. Here's the key line.
Replace reading the battery voltage (so the pusher retains a consistent RoF across charge levels), with a simple potentiometer input and you've got a very effective RoF control.
Im having same issue running makita 18v through.
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powering a dune racer. simplified setup, still blowing fuses.
This is the one I had in there that died. https://smile.amazon.com/gp/product/B071NQ5G71/ref=ppx_yo_dt_b_asin_title_o06_s00?ie=UTF8&psc=1
Here is the new 60 amp that will hopefully last a bit longer. https://smile.amazon.com/gp/product/B07GGP947C/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
This one looks pretty good.
https://www.amazon.com/dp/B071NQ5G71 My only concern is the 30A- the motor is listed at 15. Would that cause issues? Are those fixable?