6v Ride on Modifications for My Son

"getFuckedHerb" (goongetfuckedherb) 05/10/2019 at 12:50 • Filed to: Power Wheels

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My son got this adorable 6v ride on chinese manufactured motorcycle for christmas from his Grandpa. It is powered by a single motor driving 1 wheel through a small plastic gearbox. it can go forward and reverse and the battery is a 4.5AH SLA battery.

It was awesome for the first two rides. Then it was “Slow dad”.

Allow me to help!

My first round of modifications used a smallish 12v Li pack through a 12v->9v step down converter. It worked (much higher top speed) but lacked the startup power needed for hills and his passenger. I suspected it was because the 12v pack was regulating output spikes to save itself (which, awesome).

Next step was to just remove the 12v->9v converter and let him run at 12v. Seems to be the popular voltage anyway. It would occasionally be everything he wanted but more often than not starting up put the battery in protect mode. Drats.

Enter, new, bigger 12v Li pack that can output 6a vs the 3a of the previous one. Issue is that the new slightly bigger pack doesn’t fit under the seat where the battery goes. No problem, dremel to the rescue:

Now instead of in the seat the battery sits lower, down at the bottom of the bike in this big empty cavern. It’s accessible through the chrome side panel via some screws, one of which I put back on, seemed plenty.

While I was poking around I needed to get the power wire backfed into this cavity and retain the fuse, so I went ahead and ran the charger through the same hole and now the plug to charge the battery is stored under the seat:

I tested with quite a bit of load on the motor (simply by applying friction to the drive wheel and tossing a 40lb bag of cement on the seat and hitting the gas and so far no drop outs. We’ll see if it goes that well when little dude arrives home. I am happy the weight of the battery (still less than the SLA one) is now lower in the bike as well.

Battery Pack used:

!!! UNKNOWN CONTENT TYPE !!!

It’s an expensive item for this little experiment but I have a few things that it will be used for after this so it’s an OK investment for me.

UPDATE: Worked awesome, drove off road, through gravel and grass plus had plenty of power to go up hills etc.

shop-teacher > getFuckedHerb 05/10/2019 at 12:55

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Nice! I just used a motorcycle battery to repower my daughter’s C5R Corvette .

OPPOsaurus WRX > getFuckedHerb 05/10/2019 at 12:56

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i have twin girls who have your standard Jeep Power wheels.  I also have a son who is 2.  My plan is when the girls get sick of the two jeeps, i’ll take the battery out of one and link it to the other to double the power.  that should be fun for him.

TysMagic > getFuckedHerb 05/10/2019 at 12:59

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this is the kind of dad-ing the world needs more of

Echo51 > getFuckedHerb 05/10/2019 at 13:26

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If you need more amps, get a LiPo pack from any RC-related store and you’ll have all the power and more that little thing could ever wish for :P

getFuckedHerb > Echo51 05/10/2019 at 13:28

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6A better be enough!

merged-5876237249235911857-hrw8uc > getFuckedHerb 05/10/2019 at 13:38

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You’re a good dad.  I’m amassing a large collection of M18 Milwaukee cordless tools so one day I can scavenge the drills to power my sons power wheels.  Soon.

getFuckedHerb > merged-5876237249235911857-hrw8uc 05/10/2019 at 13:48

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When this one at 12v becomes “slow” it’s strait to gas powered or 48v variable speed electric .

farscythe - makin da cawfee! > getFuckedHerb 05/10/2019 at 14:00

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on the one hand... this is awesome...fine dadding

on the other hand souped up lectric chinesium....

getFuckedHerb > farscythe - makin da cawfee! 05/10/2019 at 14:02

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I retained the stock 5a fuse that was inline with the 6v battery. It’s feasible the drivetrain fails this summer, if so meh.

farscythe - makin da cawfee! > getFuckedHerb 05/10/2019 at 14:05

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im sure you know what your doing mate... i just like implying chinesium will assplode when tinkered with

(it usually just gives a puff of smoke, burnt plastic smell when it dies long before it should.... most dissapointing)

getFuckedHerb > farscythe - makin da cawfee! 05/10/2019 at 14:09

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oh the motor and/or accelerator pedal will absolutely melt down at some point in use with the voltage double. Upside the whole thing was wired with decent wire size so I didn’t have to re-wire the whole thing..

3point8isgreat > Echo51 05/10/2019 at 14:09

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Yeah I was gonna say... 6A is peanuts for the LiPo packs I’ve seen.  Even my small plane batteries are doing 20-30A.

farscythe - makin da cawfee! > getFuckedHerb 05/10/2019 at 14:12

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bonus!

its the little things in life right :)