It is important to note: contrary to Future Motions’s claims, and what a lot of DIY instructionals warn, doing these types of modifications will NOT per se void your warranty! Thanks to the Magnuson-Moss Warranty Act of 1975, Future Motion can claim whatever they want, and put void stickers wherever they want, but voiding a warranty because of consumer modifications is a violation of federal law. Unless Future Motion can prove that a claimant’s modifications directly led to the damage causing a need for the in-warranty repair, they are not legally permitted to exclude items from warranty simply because of end user modification. Moreover, the Magnuson-Moss Warranty Act puts the onus of proof on the manufacturer, not the consumer, and any ambiguous language is interpreted in favour of the consumer.

Very smart, well done! Thanks for the inspiration. Don't have a pint, but have started my surfboard build. Many thanks, keep well!

Awesome build!

Cool. Get that fuse in there!

You the man! I'm gona try this.

Would love to see any new progress on this project two years later, I love janky stuff like this! :D

Looks like you’re riding a table saw lol great video dude! I need a 3D printer ASAP

Sick bro

@AndrewWorkshop

3 жыл бұрын

Thanks!

I would think Dewatt has a battery management system to safe guard the battery in the battery . Great Idea on the battery. Think this was as good as surfboard building Thank-you

Awesome video! I see that you used the blade connector pins that you linked in the description to use the battery in 60v mode but what did you use to short the terminals? Was it just a bent piece of metal or something specific?

@inactive67

2 жыл бұрын

What I saw was a bent piece of metal in the video and that is all you need.

Brother so awesome! inspires me , I'd purchase one of those adapters from you if you sold them? Also what do you think on Putting two of those batteries on there and mounting them more top center of the fender? would adding two batteries instead of just one do anything like doubling the voltage etc?

Awesome build. Very straightforward. Question: is there anything wrong with wiring with a plug that goes into the charge port instead like the e-go battery mod from land surf?

@iamtr1stan

Жыл бұрын

Yes, I'm pretty certain the board shuts off when it's charging through the port

@TheMarcball

8 ай бұрын

I confirm, just tried charge and ride through the plug. Pint shuts off. I'm waiting on special but to open the battery compartment...

so is there a full run review on this? diagnostics etc?

Where did you get that fuse and housing?

What is the file name for the mount with the switch? I printed the one that said with switch and it didn’t print the one with the switch and door

Why do you put it before the bms instead of after like i see in the other methods? What is the difference? Please let me know

ALWAYS remove the balance lead first!

How many volts is it okay to be apart? If it was closer to say .3 volts or 1volt.

awesome

What hardware and firmware is your board

Cool vid

@AndrewWorkshop

3 жыл бұрын

Thanks dude.

@michaelfleming6677

3 жыл бұрын

@@AndrewWorkshop would you sell me a dewalt connector from your 3d printer? I want to do this to my onewheel XR

Hey Andrew, could you take another pint battery and put it underneath and wire it in like you did the flexvolt? or maybe hack a foot pad and stick a second battery layer inside a thicker footpad? you want to collab on it?

Wondering about just extending the OW battery cable so it comes outside compartment with a XT60 splice there. Then use that OW battery only until low, and then disconnect it and connect the DeWalt, use it until low... Then use another Dewalt. ie only one battery at any time so no constraint of balancing batteries voltages. Infinite range, right ?

Hey Andrew, file #2 "Onewheel Pint Battery Mount Fender with Switch" isn't correct at Thingiverse... otherwise, fantastic work, dude!

Liked n subbed. Awesome! Was wondering if the flexvolt batteries would work. What range are you getting now. Was thinking about the pint but wanted more range, this will definitely be a big consideration as in own a handful of dewalt 60v tools.

@TheAnimeist

3 жыл бұрын

IMHO, wearing a blue hoody, I wouldn't do this as a first time buy for a Onewheel. If range is your concern start off with an XR+. Because you void your warranty as soon as you install the VNR system. The VNR modification is better suited for someone who has a Pint that is out, or near out of warranty. Besides you don't want to be fiddling with this while you're trying to enjoy and learn how to ride.

When you tap into the original lead, doesn't the new battery "charge" the old one? Or do you isolate the original an run off the Dewalt?

@MrDmadness

3 жыл бұрын

Kinda, when you talk voltage what you are saying g is "electrical pressure" if the voltage is not directionally protected with a diode or busadaptor then equalization will happen between 2 battery's, think of the extra battery like additional cells added to the same battery. If you tap out the stock battery and then engage the other one some voltage potential exists to the new cells. Series parallel configuration allows you to use either or or both, series has additive v parallel offer greater electron flow ( amps ) to anybody reading this this guy knows what he's doing, IF you ever want to try to mess with a battery mod I HIGHLY suggest you ride around and fully discharge the battery. 54v dc = very painful.. easy to fry a control circuit ( controll are usually 5 volt max )

Will this still work with the newer firmware?

You think I can still do this mod. If my battery doesn’t hold a charge? Could I unplug the pint battery and hookup the dewalt battery? Thnx

Nice work. The sparky in me likes the e work and the plumber in me sees all that pex and thinks you seem like a pretty handy guy. Props ;) :) are you tied in in series , parallel or series parallel?

@bardib2021

3 жыл бұрын

The dewalt runs parallel to the internal battery.

if you put that in the middle maybe was better ? so does not stay in the way ?

Umm are there any guys like him in Las Vegas? New onewheeler wanting to kno 💯

can you do this without having the main battery connected?

Have you done a full range test? How far do you think it will go?

@Dustin34

3 жыл бұрын

6-8 miles i think. It says on the website

@CJAcebo

3 жыл бұрын

@@Dustin34 *facepalm* you know putting a battery on it will change the range, right?

Curious can you put the dew-alt in it if the other battery is dead? You could just keep that as a spare in your bag that’s a good option

@inactive67

2 жыл бұрын

Or two

@yhsyoo

Жыл бұрын

No. Both batteries should be at the same voltage so they can act like one big battery. Putting two batteries in parallel without them having same voltages will result in huge current rushing from higher charged battery to lower to make both batteries equal. So you are basically charging one battery with another battery very quickly. He did not put any fuse between two batteries so first thing to be worried about is cable catching fire because of exsessive current. Second thing is li-ion batteries should be charged using CCCV (constant current, constant voltage) method limiting current going in to prevent overheating. And the last part is, you are directly connected to pints battery bypassing BMS (battery managment system), and there is chance that cells will go out of balance or one of them overcharge and catch fire.

You mentioned you need to be careful to make sure the internal vs dewalt voltage is similar when plugging it in-- so would I be right in saying this wouldn't be a 'carry in bag for emergencies' situation, and you'd always have to set off with the dewalt plugged in, so the packs deplete at roughly the same rate?

@tylermiller9799

2 жыл бұрын

also curious

@AndrewWilde

8 ай бұрын

Hello from 2 years later! You are correct about the use. They would deplete together, not as a top up. This is adding the Dewalt battery in parallel to the existing 15s pint battery (same voltage but higher amp hours). If you connect two packs at different voltages, you can end up having big sparks as the cells rapidly dump current to equalize the voltage between the cells. That current rush can damage cells or start a fire if the current draw is too high at any point in the system. If you wanted it to be charge n ride, you’d need a DC to DC voltage controller to regulate voltage and current to the pint battery for charging. I’m using a 10s2p 18650 battery to do this on the go. Getting a Quart built and am going to design my own GT40 battery for pint 😊 float on

Great idea! One question I have is what effect to you think regen is having on the new battery pack? As the charging is different could that have negative effects to the cells?

@Dustin34

3 жыл бұрын

I thought the pint didn't have regenative braking

@havextree

3 жыл бұрын

@@Dustin34 it does

@Dustin34

2 жыл бұрын

@@havextree oh damn fancy

Can this be done to the xr using a vnr cable? Also would you be willing to print the battery connector your final version and sell me one?

@MatthewLiguori

3 жыл бұрын

Yes it can. You can buy these online and use Sonny Wheels cables to tap into the XR wires

Doesn't sound safe to connect external battery directly to onewheel battery terminals. As it effectively bypasses over-current/over-voltage protection, it sounds a quite risk modification.

Now the app/led display read wrong! Your right they read 20% when 50% of the system power remains (Onboard and outboard). Should I just keep riding? Will the board shut off on me even if the voltage is good? I was reading 56volts but the Onewheel and the app thought I was about to run out. HELP!

@rmedal4594

3 жыл бұрын

I figured out a work around: Disconnect and stop using the onewheel app. Without gps the onewheel will use actual voltage for the led power level display. If you connect the app again for moment the percentage will be correct (as it will only be based on voltage). I tested this % last night down to 75% remaining. I will update as I test.

@maryetdave

3 жыл бұрын

@@rmedal4594 so this should also work on a quart battery from chi?

Dude SO AWESOME....

10:40

Trying to do this with an EGO battery from my leaf blower

Not for me, i don't travel that far.

Lol this looks dumb af

All fun and games until somebody stabs you and steals it...

@AndrewWorkshop

3 жыл бұрын

So true lol

@brianwatson43

3 жыл бұрын

Andrew would you be willing to do this to my pint?

@brianwatson43

3 жыл бұрын

@@AndrewWorkshop hey man could you print another one of those harnesses?