More Power and Speed! Motor Goat Shunt Mod *Risky*

[@maximumchargeEV]

Goat Power Bikes (#1 On-Road Pick) bit.ly/48F43Zk Use Code "max10" to Save 5% 👇 Ebiker's Must-Have Items 👇 Mini Pump bit.ly/4hnb3za (Use Code maxcharge to Save 5%) Handlebar JackStands bit.ly/3VIZgD4 Rider Bags bit.ly/3AoHmwU Garmin Varia Radar amzn.to/3Mz5Neh Kryptonite New York Standard Bike U-Lock: amzn.to/46cY8d2 FlatOut Tire Sealant amzn.to/3WfyccS Heated Gloves amzn.to/3IzhG1g Phone Mount amzn.to/4hd4QG5 Side Mirror amzn.to/3YFsh2r Ebike Hitch Rack bit.ly/3T0LHN7 (Use Code maxcharge10 to save $10) (affiliate links above helps support the channel at no extra cost to you, thank you)

[@RobertHaworth]

I really appreciate your honest opinion on this matter. I bought my 1st E-Bike in 2017 and immediately started modifying my URB-E PRO GT folding E-bike as I was bored with a 13 MPH top speed. Shunt Mods have been around for many years. I figured why bother for mid torque upgrade with almost NO top speed gain. The Freedom E-Bikes have a ton of torque for a 26 inch tired E-Bike. Thank you for your time to test these alternatives.

[@maximumchargeEV]

Welcome! Thanks for the positive comment my friend.

[@WyomingRider]

Great job!!! Thanks for making this! About on par with the test controller I have. Throttle only in windy conditions (normal conditions in Wyoming)about 41-42. If I pedal like a mad man with the 60T chainring on the front 43-44. Hoping they’ll have it even more refined by the time I get the V2 Power Goat. Really interested in what you achieve with your controller project.

[@maximumchargeEV]

Thanks! Can't wait to see what the newest version does for top speed!

[@kevinnashskitchen3517]

I'm thinking about a 72v 6500 peak watt kit 80 amp controller, using a couple 25ah batteries on the Kepler platform. Huge rear rack should handle a big bag of goodies. Not sure what to do with the 52V battery. Just leave it for looks I guess. A $3,500 Kepler that goes over 50 mph sounds good to me.

[@maximumchargeEV]

Sounds like fun! What about big teedo's build? That thing is epic.

[@stevencherry3545]

Thank you for explaining the cons and difficulties that you might encounter doing thus modification Most guys just say that you you will get more power and don't point out any negatives so thanks for a complete and honest review.

[@applechili2848]

Liked & subscribed. I’m not electrically inclined; however, I enjoy the approach of your testing, explanation & exploration.

[@maximumchargeEV]

Thanks friend! Glad you enjoyed the content. Happy to have you as a subscriber.

[@brandonrich6342]

That was interesting learning about the stock battery and how it is made different then normal 60v batteries.

[@maximumchargeEV]

Very! It's one of the reasons these things are so fast.

[@IMBruceECLECTIC]

commenting as i watch...could you use copper wire to wrap the controller pieces (like a winding) and then solder? Would it do anything?

[@maximumchargeEV]

I'm sure that's been done before but then you risk the wires falling off. You could use a solder wick to remove the solder later on.

[@marvinlewis1879]

Thank you sir for that. I do understand doing too much for a little. I would like to find a plug and play 100amp controller and call it a day.

[@nickcechowicz5204]

I hope someone finds one and post it for us.

[@evo_one2250]

He found one but hasn’t posted it yet

[@preppingforbeginners1347]

I just watched a video of a guy putting a 100 amp into this​@@nickcechowicz5204

[@Pidgeys]

Has one been posted?

[@leighburpee53]

Just out of curiosity when you were doing your shut mod did you happen to see what the maximum voltage the capacitor were. If they are 100v then you could run a 72 volt battery with stock controller

[@maximumchargeEV]

They are 100v :)

[@massterrbarber]

Do you think thermal paste would be good to put on after the shunt mod??

[@trsdamocles]

Would I like to know is on some of the older radrunner bikes they have upgrade kits to 35 amps. I'm fairly certain that the original controllers were 18 amp controllers. I'm fairly certain that the batteries only had like a 20 amp discharge rate. So how did they do it?

[@maximumchargeEV]

Need confirmation on that battery discharge level.

[@trsdamocles]

@maximumchargeEV can't exactly confirm but what I could find is the radrunner has a 48v 14ah battery and I think a 18 Amp controller. Weak.

[@trsdamocles]

@maximumchargeEV my experience has shown on three different ebikes that companies don't go much more on discharge rate than rated output. Senada had 28a controller, 30a discharge(21ah). Smrlo awd had 27a between 2 controllers and 50a discharge(23ah). Wallke has 28a controller and 30a discharge(40ah).

[@Mark_Maguire]

Very interesting to learn how the battery blender works. I have one connecting two 48v batteries, one has a 30A BMS, the other is 25A. I didn't know that they split the draw from the each battery's BMS. I was worried that if I put a 30 - 35 amp controller in [stock is 22a], that the BMS might shut down. Good info, thanks.

[@massterrbarber]

Well I would think on top of the soldering if soldering to get the controller more torque not just the 4 Staples you have squeezed together and soldered you get more torque with your set up when soldering to secure then thermal paste to protect the controller from heating up and the MOSFETs already have thermal paste to protect the heat exhaustion from breaking and I'm not even sure cause I saw a video on this and I am not an electrician and right now it would come in handy that is why I am trying to figure out if what you did in your video could apply me.

[@maximumchargeEV]

Well the mosfets are already connected to an aluminum heatsink, which then connects via the top screws to the exterior of the controller which is all aluminum and acts like a heatsink. They added thermal paste there already actually so you're on the right track!

[@fozzsr]

I did the same dual battery setup on my Lectric XP2.0. The batteries for it are wimpy so i needed 2 before upgrading to 1000w.

[@OneCosmic749]

Can you send me a link to that USB-C thermal camera you are using?

[@maximumchargeEV]

It's this one amzn.to/4a2Aemh

[@juancarlossanchez759]

If you want to keep the heat dissipated in your motors, just add statorade to the magnets of your motors and heat sink blades. They will run nice and cool. Luck!

[@VEGITAS4]

Statorade? Is that like Gatorade…for e-bikes?

[@maximumchargeEV]

I did look into that but it seems like I won't need either one because it just isn't getting very hot. I also hear statorade doesn't age well and you have to add it in every year or so and it makes a mess in your motor. I probably won't need it but if I do I'll add it.

[@suckaphish83]

I've tried statorade, and while the concept is sound, the main problem with it is that it's a water based liquid and evaporates quite quickly. I ended up with my motor all gunked up with significant drag from friction against the leftover ferrous silt.

[@supercraps6110]

totally agree, just upgrade your controller for more raw power and faster acceleration and if you want more speed get your battery voltage upgraded too!. A Great video look forward to more...

[@maximumchargeEV]

Thanks! Looking forward to upgrading this bike.

[@MURATSEYİTHALİLOGLU]

Is there any harm in this? Is it okay if I do that. In this case, the battery will run out in a short time, right?

[@maximumchargeEV]

Harm? Maybe. Yes the battery will be used up faster, but I ran two in paralell so as to not exceed the 50amp stock draw from one battery

[@MURATSEYİTHALİLOGLU]

My hulajnoga 60V 20Ah is now 60V 40Ah like you I bought another 60V20Ah battery later and added it. If I do this to the controller like you did, it will go faster and also run out of battery faster. In this case, I think the engine will heat up more. Is there a possibility that the engine will burn out? ​@@maximumchargeEV

[@TheTcat1000]

You are brutally honest thank you!

[@gerardogama120769]

I heard you could upgrade to 72 volt battery with the stock controller! Is that true?⁷

[@maximumchargeEV]

I believe so

[@juancarlossanchez759]

After your mods are done, try a modified cover for the battery compartment. Make it look more like a motorcycle. Check out actual e-motorcycles like the Eva rebelle or the livewire del mar one.

[@maximumchargeEV]

Will check it out!

[@IMBruceECLECTIC]

if the new battery is a 17s----then maybe a little faster still...?

[@maximumchargeEV]

yup! higher voltage usually means higher top speed. That's one reason why this bike can go 40mph easy.

[@kylerobison7561]

Yeah makes you wonder if the new Samsung batters in April will be 16s or 17s.

[@IMBruceECLECTIC]

@kylerobison7561 ...my guess is 17s...to keep the bike fast. My existing bike is fast...and 17s Samsung Batteries.

[@kylerobison7561]

I hope your right@@IMBruceECLECTIC

[@maximumchargeEV]

@@kylerobison7561 probably 17s idk why they would change it.

[@dereksmith1803]

Why does the law say you have to have pedals and limited to 28mph? I would think you would be less of a traffic hazard if you're able to keep up with traffic. I am in a rural area and to leave my house, you have to ride about 3 miles on a 2-lane state highway with a speed limit of 55mph (meaning traffic is running 60+) before you can take a side road to go anywhere. I would love to have one of these and ride to work, but I'll get run over if I'm doing 28mph (although cyclists do ride their bikes out here during the summer - stupid).

[@anio6865]

I am using a 48v 20ah lithium ion battery. And I am wondering, if I switch to a 52v 20ah battery. Will I get more range, distance ?

[@maximumchargeEV]

Yes you will. 52x20 has more Watt hours.

[@ChristopherBriggs-j7x]

why didnt you solder on a piece of copper or nickle strip ? just curious ,imo it would be better that straight solder especialy if it heats up lol

[@maximumchargeEV]

eh it will probably be fine

[@thiscrazykidd]

Hello MaximumchargeEV, do you think I could shunt mod the Meelod DK300 Max successfully? It already has a battery blender and dual batteries?

[@maximumchargeEV]

I wouldn't if I were you

[@thiscrazykidd]

​@@maximumchargeEVthank you for your sounded advice, I greatly appreciate your response 😅

[@l3arney]

How's the shunt mod doing now? Has it fried anything in the controller yet?

[@maximumchargeEV]

I've been using the sabvoton controller these days to get more power. Shunt mod controller did hold up just fine through multiple rides

[@l3arney]

@@maximumchargeEV I have a Juiced Hyperscrambler2 and plan on doing the shunt mod but I'm not confident enough that it will hold up a long time without issues.

[@IMBruceECLECTIC]

PERFECT!! LOVE IT!!

[@ModProjects4306]

Just be careful. I burned out a couple of controllers shunt modding.

[@maximumchargeEV]

"If he dies, he dies"

[@oldmanebikes8392]

You should work with them and tell them to make the bag out of the material firesak uses on there fire safe bags. They make the best bags for battery fire proofing bags.

[@maximumchargeEV]

Idk about how effective those are..

[@richkraft8709]

Great video keep up the good 👍 work 😊

[@maximumchargeEV]

Thanks! And thank you for the positive comment my friend.

[@dtcrouch100]

You'll get about a 17% loss with that blender. They're not super efficient. I was able to bring that down to around 7-8%, making my own blender. Great video, keep it up!!

[@maximumchargeEV]

Any more info on that?

[@dtcrouch100]

@maximumchargeEV Basically, the mosfet in the those are not cooled properly, and it's poor quality. I reused the housing but built a better circuit with better parts . I don't want to give away too much, as I'm in r&d and plan to sell them when I get done testing. I want to be 100% on safety and durability before I put the out . Price is looking like 60ish for a 100 amp constant and peak 120 amp .

[@dtcrouch100]

Also it won't be 3d printed .

[@Goesriding]

I heard about this loss but heard it's about 14%. So you lose capacity and amp draw?

[@nickcechowicz5204]

Let us know when you have them for sale.

[@Rogue_1987]

I did it on my Super 73 3 years ago and it only gave more range and only few MPH

[@maximumchargeEV]

It would give you less range for sure since it drains the battery faster.

[@lilvegasbasc-se7en-0-duece67]

What did the doctor say about the transition, everything go well? 😅

[@maximumchargeEV]

Hahaha doctor is happy with the results but the changes aren't permanent and can be reversed if I want!

[@tobycrystal]

I thought a "shunt mod" was putting a second resistor in series with the amperage sensing resistor to fool it into seeing less amperage. Those looked like fusable links in line with either the power in or out cable. You probably only got that boost because more amperage was able to get through the circuit not that the circuit was outputing more current.

[@maximumchargeEV]

Your probably right

[@BuckshotRobertsOfficial]

If I'm not doing the mod do I still need to worry about not charging the battery all the way?

[@maximumchargeEV]

if you won't do the mod you can charge all the way worry free.

[@dtcrouch100]

No, you should 100% fine blending the batteries. The blender will pull from the highest charged battery ( the tank battery) first, just like stock. When it drops down to the voltage of your other battery, it will pull from both.

[@BuckshotRobertsOfficial]

@@dtcrouch100 my goal is ride out the warranty and then if something fails, drop a 5000w on the rear and a full frame battery with an option to charge at charging stations like the Harley bike.

[@juancarlossanchez759]

Balaclava x 10, yay! So much fun. Lol😂

[@economicfusion6065]

Great channel. Very good stuff

[@maximumchargeEV]

thank you!

[@quadzilla2854]

Awesome video!

[@maximumchargeEV]

Thanks!

[@baggerbenn]

Nice work. Man your brakes are loud. I hope mine aren’t when the bike gets here 😆

[@maximumchargeEV]

eehh they have their moments if they are cold.

[@devildogcody]

seems like the shunt mod isn't worth it over all........but a second battery is. You would probably get better results if you got your second battery from Goat Power, they have one made for that bike that matches the original in total voltage.

[@maximumchargeEV]

Agreed

[@mr.pumpalot]

Make the custom 17s battery and charge it to 71.4 volts ;)

[@OU812NVME]

Wait a minute I was told the shunt mod comes with nitrous lithium...lol

[@corywebb5537]

I feel like a 60volt should go at least 45 maybe 50.. a 52volt goes 40+

[@maximumchargeEV]

Now the stock go bikes go about 45. They are a nominal 63. Typically to go over 50 you need 72v. Single motor ebikes do not go 40+ at 52. I have several of them and even the dual motor bikes at 52v just barely reach 40mph. Lots of that depends on the type of motors, how many motors, and the windings of the motors. In theory I can make a 36v system go 100mph.

[@thevillainacademyYT]

Unlisted tutorial video when?

[@maximumchargeEV]

Maybe if I get the new controller :)

[@AUXITOLED]

Good Job, sir. We'd love to collab with u on our air pump. We have reached out to you

[@maximumchargeEV]

Responded! Thanks for reaching out.

[@andreperry7995]

Dont the bike goes 40 or 50 man? Sound look u asking for trouble.

[@maximumchargeEV]

"I am the one who knocks"

[@andreperry7995]

@@maximumchargeEV Dont

[@massterrbarber]

I'm trying to learn from you

[@sethreign8103]

What makes this risky?

[@maximumchargeEV]

Too much heat for a part that's not designed for that much heat, then it melts and breaks.

[@jahbrake9791]

7 amps is still 7 amps 🤷🏻‍♂️

[@maximumchargeEV]

True! Hey, at least there's minimal risk of overheating.

[@SolelyElectric]

Nice

[@maximumchargeEV]

Hey @SolelyElectric, Thanks for the comment friend! Appreciate having you as a viewer.

[@dude7068]

lol, just buy a faster bike

[@maximumchargeEV]

I was thinking of just getting a yamaha r1 and leaving electric entirely

[@massterrbarber]

Do you think thermal paste would be good to put on after the shunt mod??

[@maximumchargeEV]

Where would you put the thermal paste?