Making Razor MX125 electric kids motorcycle Faster DIY Dewalt 20V drill lithium Battery Pack upgrade
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- เผยแพร่เมื่อ 24 ส.ค. 2024
- Upgrading Razor MX125 electric kids motorcycle DIY Dewalt 20V drill lithium Battery Pack
This upgrade worked out perfect for my daughter. She got older and heavier, so she wasn’t able to ride it anymore. Now that it has been converted to a dewalt battery pack, she can keep riding for hours.
If your motorcycle trips a breaker while riding, you might need to bypass your rocker switch with a 30amp fuse. Some mx125 motorcycles came with a 13amp circuit breaker built into the rocker switch.
Parts needed
Battery pack adapter
amzn.to/47DE30L
30 amp fuse
amzn.to/3E65Vgw
Female quick connectors
amzn.to/3OJUTSX
Electrical tape
amzn.to/3smH6dF
Double sided tape
amzn.to/44ncjKS
20v dewalt battery pack
amzn.to/3YJghwg
Tools
Phillips screw driver
amzn.to/3KKuRhq
Drill
amzn.to/3EakdMU
Grinding Bit
amzn.to/3KM8jg4
Wire cutter/crimpper
amzn.to/44dKmFq
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Never mind. Just saw the list in your description
Thanks for checking out the video. The 20v tool battery swap was pretty easy to do. Makes a huge difference in power. Let me know if you run into any issues with the swap.
Ty my man
No problem, Thanks for checking out the video.
great video
Thanks for checking out the video and commenting. I really appreciate it.
NICEEEE!! I’m getting one of these bikes for my little man, and might want to upgrade if it’s too slow. This seems more affordable and like a fun dad hack.
Before doing the battery upgrade, my kids stopped riding the bike with the original 12v battery. They outgrew the bike and it was just sitting there collecting dust. After installing the lithium 20v tool battery upgrade, they started riding it again. I have been adding the lithium tool battery adapter to a lot of our other 12v scooters and power wheels. All of them are fast and fun now. We simply pop the dewalt battery on whichever toy they want to ride. Let me know if you run into any issues or have any questions. Thanks for checking out the channel.
Do they have an adapter like this for Milwaukee batteries 🔋 and do you have to but the fuse ?
Here’s a link to the new battery adapters I purchased. They fit both Milwaukee and Dewalt batteries. It even comes with a 30 amp inline fuse and a toggle power switch.
amzn.to/40jNlfa
If you ride it till the dewalt battery dies. Does it damage the engine or battery? Also does the dewalt batter alao increase the speed
Hi, You are correct. If the battery drains all the way down to 0, you may damage the battery. We have not had issues with battery going to 0 because the kids notice when the bike gets slower. They end up swapping out the battery before the battery is fully drained. They simply grab a fully charged battery pack and go fast again. The speed increased enough to go through grass and it was definitely faster than the factory 12V battery. The kids wanted to go even faster, so we upgraded the motor to a 24v 350 watt motor and overvolt it to 40V. Now the bike pops wheelies and goes over 20mph.
th-cam.com/video/fqWpjTmqAX8/w-d-xo.htmlfeature=shared
I modified a moped version of this and I don’t know why it has virtually no power anymore but the batter seems connected with power on
Hi, sorry to hear that you are having issues with your moped. If there is no power going to the motor when you give throttle, the issue might be the throttle controller. I would get a multimeter and test the power going into the throttle controller form the battery and test the wires going to the motor from the throttle controller. That should help locate the issue.
Hello, i did this with my daughters mx125.. using dewalt 20v 4ah battery.
She can only ride for maybe 10 minutes before it shuts off on her.
Any way to fix this?
Sounds like the safety toggle switch is triggering. If I remember correctly, the power switch has a built in safety relay. I would get a different power switch without a safety relay or use a dewalt battery adapter that has a built in switch. Here is a similar one that I use on my newer upgrades.
www.amazon.com/Adapter-Battery-Terminals-Converter-Robotics/dp/B0B9HJZ2BK
Yep or add a larger fuse.
Ah a little dangerous but fun lmao such a dad response. This is exactly what i have planned for my sons sx125. Bout how much faster do you think it is over stock? Stock maxes out at 8mph. It wont even climb little hills in the yard. I have an abundance of 5ah Milwaukee batteries. I think i could get one rigged up.
The bike with the drill battery probably goes 13 to 14 mph with my 60 pound daughter on it. She can ride through grass and climb curbs easily now. Definitely a fun upgrade to a bike we were about to get rid of. Thanks for watching.
@@DIYwithDUY man thats awesome to hear, definitely upgrading it then.
Do you need a low voltage cut off switch to avoid over discharging the Dewalt battery?
Hi, it would be a good idea to add a low voltage cut off switch. I did not add one to our modified Razor because we charge the battery after every use. Our dewalt battery lasts well over 1 hour and the kids get bored of riding before the battery gets drained. I always check the battery level after they are done riding and still see 2 bars out of 3 left on the battery. The battery would probably last 2 to 3 hours before it’s drained. I will look into adding a low voltage cutoff for my next Razor build.
Is the adapter compatible with a 20v black and decker battery? The only one on amazon i see for black and decker says 40v
Hi, Here's an Amazon link to a battery adapter that works with a 20V Black and Decker Battery. It should work well for your Razor 20V conversion. Let me know if you run into any issues or problems with the conversion. amzn.to/4arHl87
What controller and throttle did you use
Hi,
I used the factory 12v controller and throttle on this particular 20v setup. The original controller worked okay, but it only allowed for full throttle or no throttle. My kids used this setup for over a month and it worked well. They wanted the bike even faster. We went ahead and upgraded this MX125 with a larger motor, 2 dewalt batteries and a full range throttle controller. Check out the new build. th-cam.com/video/fqWpjTmqAX8/w-d-xo.htmlfeature=shared
Let me know if you have any other questions or concerns. Thanks for checking out my videos.
I've seen ppl swap to the DeWalt batteries and didn't seem to have throttle issues. Can you explain what you mean? I just bought one for my daughter and plan to swap she's around 45lbs and I want her to be able to ride. What your saying makes me think she won't be able to cruise at lower speeds though
@@DIYwithDUY
@@dabrokest530 Hi, sorry for the confusion. The Dewalt battery swap will work fine. The MX125 throttle controller is basically a “on” and “off” switch. It either gives you full throttle or no throttle. You cannot adjust the speed of the mx125 by decreasing the grip rotation with the factory controller. It is not a variable throttle controller and is difficult to go slow. It’s all or nothing. To go slow, the kids tap the throttle. Let go of throttle, coast until the bike slows down and tap the throttle again. Hopefully that makes sense. We upgraded to a new controller for more control. Our new throttle controller has percentages of throttle. If you rotate the throttle 10%, the motor rotates at 10%power. If we rotate 50%, motor rotates at 50% power.
Can you hook two batteries to it for longer power or will that overcharge the motor I eventually want to upgrade it with the larger motor from your other video so I'm just curious if I could go ahead and use the double harness for the future project now rather than having to to buy two harnesses for two different projects also the link takes you to a smaller lithium battery with 4ah but the one in your video is thicker can I buy a larger ah battery
Hi, great questions. Yes, you can hook up 2 batteries in parallel to double the amp hours. Example is if you use 2 batteries that have 20V 6ah. You can wire them in parallel and have 20V 12ah. Make sure you don’t wire up the batteries in series if you are using the original motor. 40V 6ah will burn up the original 12V motor pretty quick. Use a voltmeter to confirm voltage. These battery adapters work with all 20V dewalt battery packs and any Amp Hour pack. Here’s the link to the better battery adapter that I used. amzn.to/3O4hsSZ
They have a toggle switch attached to the adapter. It’s the same one I used for the dual battery setup.
Make sure to use 2 battery packs that are similar in age and with similar amount of charge. Let me know if you have any other questions. Thanks for checking out the video.
@@DIYwithDUYthank you that's what I was mostly wanting to know cuz eventually once he's better at riding it I want to upgrade to the stronger motor and thanks I'll keep that in mind I was actually already learning about series and parallel for some solar panel project I want to do coming up I just didn't know if it was possible with that double harness from the other video thank you again
Was a voltage regulator needed from 12V to 20V? The engine must burn out soon, am I right?
Hi, I didn’t use a voltage regulator for the 12v motor or controller. I purposely increased the voltage to 20V in order to make the motorcycle faster. I have a 20V to 12V regulator, but the motorcycle is too slow when it’s running on 12V. The 12v motor, throttle controller are still working great. I wanted to make the motorcycle even faster, so I recently took the 12V motor off the motorcycle and installed a bigger 24V 350W motor and over voltage it to 40V. It’s crazy fast now and a lot of fun. These motors are relatively inexpensive and would be easy to replace if they get damaged.
th-cam.com/video/fqWpjTmqAX8/w-d-xo.htmlsi=2JLEOELz-10BytAe
hows it holding up? is the 12v speed controller still working after a bit of use
It’s holding up great and has been a lot of fun for her. She says she loves it and it still feels very fast.
What’s the part that you put the battery in ? Is it the charger
Hi, the battery adapter is a very neat device. I found it on Amazon. It lets you connect a tool battery to any 12v-20v electric device. I have used it for scooters, electric bikes, etc.
amzn.to/47DE30L
I use this to run my live scope on my bass boat. Great device
How long of a run time do you get out of one of these batteries?
This particular Dewalt battery was the 20v 4ah battery. My daughter weighs about 60 pounds and it lasted approximately 20 minutes with her on the bike. This modification makes it so easy to swap batteries. We have 3 of these dewalt batteries and when 1 was empty, she grabbed another charged battery and kept riding. There are larger and smaller capacity 20v dewalt batteries available. Either way, it’s a lot of non stop fun as long as you have a way to charge the dead batteries right when they run out.
@DIYwithDUY ever tried the original plug-in on bike to see if it would charge Dewalt battery ???
@@willsilversurfinharris6239 I have not tried the original plug-in charger. The original charger is made to charge lead acid batteries. The dewalt battery is a Lithium battery and the dewalt battery charger usually stops charging once the battery is full. I would be afraid of overcharging the Dewalt battery.
@@DIYwithDUY understood
What’s the battery holder called? My son has one of these bikes but it’s a lot slower than I thought it was gonna be. So this upgrade looks like the route I’m going to go.
1st
A little dangerous, but fun....lmao
The bike has been a blast for my daughter and she has only fallen off once from accidentally popping a wheelie. Luckily, she didn’t get hurt from the fall. I would never hear the end of it from my wife if my daughter hurt herself. 😃