I've got the same controller all you had robdo is solder the shunt bars nip the bars together then solder across the top the length of bar. It might blow a fuse if it's 30 amp use 35to40amp great torque and speed. You doe it the hard way
That controller is the best one it's 35+1amp the mosfets are held with metal bars. You find the circuit is small in width that's to keep connroller cool most of controller the mosfets are screwed in at top against the side where heat greese is applied its normally white in colour to shunt that controller is the best one I've got the same and does work I blew 30mp fuse so I put 35amo fuse it's been fine never put 40to45to50amp as controller pop it would get to much current
Is this video showing that you can increase the voltage directly at the controller without the need for a boost converter🤔 or are you also using a higher voltage battery. I have a 52v 23ah battery, 52 v 25amp controller, duel 1200w motors, 3 modes with variable speed throttle. I was considering trying boost converters going directly to the motors but wasn't sure I that would allow variable speed or just a constant higher voltage from the boost converter. I really just want to increase the top speed a little .Great video thanks .😀
the controller just takes the voltage that comes into it. you still need a boost converter to get higher voltage. what he just did I think was to get more amps through the mosfets and more volts with the boost converter.
i have very similar 35a black controller and it gets me to 57km an hour or so, (52km an hour = 32m/hr) ive seen higher on very slight inclines. Altho i cannot get the pedal assist to cooperate and is always full power so i switched back to the lcd8h. i did love the torque and speed with that controller.
To confusing for a beginner I have an Xtreme Cabo limited to 18mph. I knew how to derestrict the old model but am at a loss. These aren't bikes there mopeds with pedals...200lbs. I know it'll go faster if I could derestrict it. I know it's possible. Any help??
Just wondering if you Beefed up the shunts for the mosfets. More solder and wire as thay all are skimpy on production on the solder. An you could get away with 80 volt capacitors ....anyways that's how I'm gonna do mine .
@ElectricPower did your 48v LCD8H display hold up at 70+ volts? I have the same display and I'm thinking of converting my battery to 60V so would need to run 67.2v through that display and I have no confirmation that it actually works. Thanks.
Im new to ebike but display staff use 5 v Insted of 60 v that 60 volt goes motor power but all other digital control voltage & LCD usually use 5 v ? Please let me know , I bought Chinese controller with label ripped off so it's hard to understand Wich brand so on but like to understand my 48 v controller with battery
On controller for 1500wat and its the same on 2000 watt with out shunt bars with solder speed is 45mph the controller is 7amp 35+2amp I've done the shunt I biped bars together so I didn't use much solder speed is the same but the torgue is pretty good that's on the stand weather's crap so I can't try out the upgrade I did do one two weeks ago same controller blue a fuse 30amp so I've put 35amp not 40amp as you could blow controller
Been asking the same question with no response yet why make a how to video and not explain the parts you are using you showed us the capacitors why not the fets?
you just change the capacitors, mosphets and this "resistor" thing (02:24)? Nothing more? the batery management sistem in the controller will not burn with the higer voltage?
Weakmotorcomike yes. Just don’t forget about polarity. And don’t use the battery higher than 60v which is about 67v when full charged. Otherwise you’ll need to change all transistors.
So if I understand correctly, the radpowerbikes stock (22a) controllers FET’s can handle up to 100 volts and the Bolton (35a) controller can handle up to 68 volts (or 63v according to the caps). Does this mean that the booster would work with the stock radpowerbikes controller even if you cranked the booster up to 68/70v ? You’d just lose a lot of torque because the stock controller is only 22A?
if i have 1500 W hub motor, battery 60V 20AH max speed have 25km/H or new version 45km/H anyway how increase max speed 80km/h. can change controller biggest, 60V 3000W controller maybe. or need change controller and battery 72Volt version. how mtor ? burn or can handle more volt? or need change genuine controller biggest FET and some resistor maybe ?
Hello, I have installed a new headlight on this controller and apparently I have burnt something inside the controller. Do you know what part is responsable with the headlight and if it could be repared? Thanks!
question i had 350w front motor hub scooter battery 36v output dc 42v2.0a charger 100 -240v 50/60rh output 42v 2.0a iwant to upgrade to 750w to 1000w to little more speed and range tnx, more power
Can you help me please ? I have 36v 17,5amp 500w chainice controller. I need to get or make 12v 160amp one. Pls help. I spend one month on resources and learning. Do I gust change mosfat, beaf up the wires ex. and change resistors
Wati=speed, 500wati=35km/h aproximativ, 1000 wați controler 60km/h,, atunci de ce nu pui un controlar cu wați mai mulți este foarte simplu și mult mai sigur
Hi. Great job on what you set out to do. I know this has nothing to do with the vid. Can you tell what light that is. Make model what voltage it works off. Thanks.
My electric scooter is a 52V build with 2x1200watt motors. It has a lot of torque but top speed is bad. Top speed only 50km/h or 30mp/h with full battery. I would like to have a better top speed, can you help me on that?
@@ikeegroup4852 Hey, I have learned quite a lot since I wrote the comment. What exact scooter do you have? I found out my scooters motors are made that way they will last very long without problems but that means worse performance. If you want better top speed, you need to raise battery and controller voltage. If you want better acceleration and torque, buy a controller with higher amps.
i bought Langfeite 52v . yes i think i need to change controllers and upgrade batteries to 60v. But is quite exoensive. Maybe better to sell my ood scooter and buy new 60v escoot.
@@ikeegroup4852 Langfeite l9? I bought the same scooter but different branding. I am going to sell mine and buy a little bit more expensive scooter. You only need to upgrade the controllers to 60V if you buy external battery pqck instead of a whole new 60V battery pack.
The booster you’re using can I use this on a 1500 W motor? My controller is already at 45 A but my battery is limited by 50 amp output.. i’m still new to this 😅 I’m considering buying a 50 amp controller at 2000 W and I’m running a 48 V 30 amp hour battery. I really wish I would’ve bought the 52 v My top speed on flats is around 31 Mph. I’m trying to get at least 35 mph being that it’s 1500 W!
@@weaverjoshuab The SW900 controller do the same speed as KT controllers. There's no restrictions unless you set it. The only difference is SW900 has much less features & options.
Simon Voigt you need to use formula to calculate that. I checked the transistor which cutting the voltage for whole controller. And I used that I have in the original controller it was about right one that I need. And it depend of how much you gonna tin the shunt.
Simon Voigt To find the Voltage, ( V ) [ V = I x R ] V (volts) = I (amps) x R (Ω) To find the Current, ( I ) [ I = V ÷ R ] I (amps) = V (volts) ÷ R (Ω) To find the Resistance, ( R ) [ R = V ÷ I ] R (Ω) = V (volts) ÷ I (amps) To find the Power (P) [ P = V x I ] P (watts) = V (volts) x I (amps)
Nice video I got the same controller what the colour wire for the lcd screen ? There's 52 volts showing but the battery indicator is empty and motor doesn't work any ideas ? Cheers m8
hi, I just watched your video, could you give us a detailed plan of the modifications made to the controller and should you change the motor and the original battery???? Thank you
frederic liontransler So in this video you can see all mods that I did with controller. I changed all transistors, capacitors, add resistor to cut the current (not necessary) and tinned shunt. That’s pretty much it. Also I used the booster and rised some voltage which gave me that amount of speed. You can change the motor and battery if you want to. This controller can handle 60v battery easily now.
@@electricpower8130 hi i just did only shunt mod and saw this video to convert voltage. but you also mod transistor capacity and resistor. all this things are neccessary? my controller has 35A current and maximum 70. and i also use 1500w hub motor thanks in advance!
Eric Guthrie stock controller should to work with 52v battery. If you’ll get the same Controller you can use 52v battery without any problems. Or the same device as I did. Just don’t go over 60v!
This is a great video I was always curious about if you replace your capacitors with higher voltage capacitors can you add a larger battery pack and eventually get higherspeed
καλησπερα εχω εναν κοντρολερ QS4830. 48 volt, θα ηθελα να τον μετατρέψω σε 60 volt, το μοτερ ειναι 48 volt 3000 wat.πως μπορω; καποιο σχεδιο αν υπαρχει.. σας ευχαριστω!
Δεν γνωρίζω. Πρέπει να ανοίξετε και να δείτε ποια στοιχεία είναι εγκατεστημένα σε αυτόν τον ελεγκτή. Και μετά δείτε τι μπορεί να αλλάξει για να αυξήσετε την τάση.
it appears i have 18 mosfets. it appears that they are grouped in sets of three and negative and positive. i destroyed 2 of the resistors, one's legs were completely gone and the other was missing one leg. i cant find a single one of these mosfets other than chinese sellers, can i swap with something comparable, but not exact specs on just the two that are bad? or will i need to replace all of them? it seems like i should replace them all or it could make things out of sync my controller was rated for 60amps, but i just had to be greedy and do the shunt mod, it took it up to 97 amps lol they blew on me on the trail, i was going super slow and had a watt meter showing me amps, plus a dedicated amp clamp doing the same. i was going up a steep muddy packed dirt trail in the woods and then the motor went limp. at the time i was only going 5mph and was bouncing around 10-30 amps
I'm curious how much it cost to upgrade for the speed on the bike since I have a rad runner and really hate when it lacks the speed to go up little hill or when every car catches up to me. Max I'd like go 30 mph. I'm also curious how your height and weight effect the drop in speed. I'm about 5"6 and 110 pounds so I know I can go 20mph easy.
@kim james Purchased from here. bluenergy.en.alibaba.com/product/62511921813-817486283/electric_bicycle_motor_bafang_1000w_electric_bike_hub_motor_bafang_48v_1000w_geared_ebike_hub_motor_for_fat_electric_bicycle.html
Great video. Question, my battery is 48v 20ah. My controller is 48v 20ah. Manufacturer upgrade from 20ah b/c none in stock. Will this combo work? Heard it could damage battery. I use PAS too when riding. Hope you can help. /Bklyn👑
Amazing but i didnt understand its from 36 v to 72 volt change by what kind of mosfet & capacitor i need help with number & diagram please.
Hi there how to hook up a SW-900 display to any e-bike controller box especially the 3000w 24 mosfet 80A
I've got the same controller all you had robdo is solder the shunt bars nip the bars together then solder across the top the length of bar. It might blow a fuse if it's 30 amp use 35to40amp great torque and speed. You doe it the hard way
That controller is the best one it's 35+1amp the mosfets are held with metal bars. You find the circuit is small in width that's to keep connroller cool most of controller the mosfets are screwed in at top against the side where heat greese is applied its normally white in colour to shunt that controller is the best one I've got the same and does work I blew 30mp fuse so I put 35amo fuse it's been fine never put 40to45to50amp as controller pop it would get to much current
What's the motor size by the speed i would hazard a guess at 1000w ?????
Is this video showing that you can increase the voltage directly at the controller without the need for a boost converter🤔 or are you also using a higher voltage battery. I have a 52v 23ah battery, 52 v 25amp controller, duel 1200w motors, 3 modes with variable speed throttle. I was considering trying boost converters going directly to the motors but wasn't sure I that would allow variable speed or just a constant higher voltage from the boost converter. I really just want to increase the top speed a little .Great video thanks .😀
the controller just takes the voltage that comes into it. you still need a boost converter to get higher voltage. what he just did I think was to get more amps through the mosfets and more volts with the boost converter.
Voltage is related to speed ...as long as you have enough wattage to carry that weight, the more voltage the faster you go ..simple mathematics :D
Will my controller work on a 52 v battery ?
i have very similar 35a black controller and it gets me to 57km an hour or so, (52km an hour = 32m/hr)
ive seen higher on very slight inclines. Altho i cannot get the pedal assist to cooperate and is always full power so i switched back to the lcd8h. i did love the torque and speed with that controller.
To confusing for a beginner I have an Xtreme Cabo limited to 18mph. I knew how to derestrict the old model but am at a loss. These aren't bikes there mopeds with pedals...200lbs. I know it'll go faster if I could derestrict it. I know it's possible. Any help??
Just wondering if you Beefed up the shunts for the mosfets. More solder and wire as thay all are skimpy on production on the solder. An you could get away with 80 volt capacitors ....anyways that's how I'm gonna do mine .
Yeah I solder the shunt on the half. So more Amps can go through. And 80V capacitors it’s more than enough. For 60V battery.
@@electricpower8130 good to hear that bike cooks hahaha. I liked the mods that you and outher s do keep up the good working knowledge.
You probably already know is everything set up properly on display in the settings.
Like is everything maxed out so you get full power.
@ElectricPower did your 48v LCD8H display hold up at 70+ volts? I have the same display and I'm thinking of converting my battery to 60V so would need to run 67.2v through that display and I have no confirmation that it actually works. Thanks.
hi man, did you convert to 60v?
Im new to ebike but display staff use 5 v Insted of 60 v that 60 volt goes motor power but all other digital control voltage & LCD usually use 5 v ? Please let me know , I bought Chinese controller with label ripped off so it's hard to understand Wich brand so on but like to understand my 48 v controller with battery
On controller for 1500wat and its the same on 2000 watt with out shunt bars with solder speed is 45mph the controller is 7amp 35+2amp I've done the shunt I biped bars together so I didn't use much solder speed is the same but the torgue is pretty good that's on the stand weather's crap so I can't try out the upgrade I did do one two weeks ago same controller blue a fuse 30amp so I've put 35amp not 40amp as you could blow controller
Hello! I would also be interested in what the original mosfets were like and what you replaced them with?
Been asking the same question with no response yet why make a how to video and not explain the parts you are using you showed us the capacitors why not the fets?
you just change the capacitors, mosphets and this "resistor" thing (02:24)? Nothing more?
the batery management sistem in the controller will not burn with the higer voltage?
Cairo Alberto yes! Correct. Just don’t go over 72v battery and everything will be work good.
@@electricpower8130 what size capictor are those and where is a good place to order I just blew 2 up
Weakmotorcomike www.ebay.com/itm/183779761835
@@electricpower8130 if I just replace the stock capictor with those ones it should work fine?
Weakmotorcomike yes. Just don’t forget about polarity. And don’t use the battery higher than 60v which is about 67v when full charged. Otherwise you’ll need to change all transistors.
So if I understand correctly, the radpowerbikes stock (22a) controllers FET’s can handle up to 100 volts and the Bolton (35a) controller can handle up to 68 volts (or 63v according to the caps). Does this mean that the booster would work with the stock radpowerbikes controller even if you cranked the booster up to 68/70v ? You’d just lose a lot of torque because the stock controller is only 22A?
Do you know the mosfet number you put into the 35a controller?
I don’t remember. I took mosfets from original radrunner controller
Hello, I have an issue with my lcd8
It says copy complete and I did not intend to copy anything. Impossible to make it work again.
What can I do?
if i have 1500 W hub motor, battery 60V 20AH max speed have 25km/H or new version 45km/H anyway how increase max speed 80km/h. can change controller biggest, 60V 3000W controller maybe. or need change controller and battery 72Volt version. how mtor ? burn or can handle more volt? or need change genuine controller biggest FET and some resistor maybe ?
Where did you get the neat little handlebar clamps for your bar-end. mirrors?
Hello, I have installed a new headlight on this controller and apparently I have burnt something inside the controller. Do you know what part is responsable with the headlight and if it could be repared? Thanks!
question i had 350w front motor hub scooter battery 36v output dc 42v2.0a charger 100 -240v 50/60rh output 42v 2.0a iwant to upgrade to 750w to 1000w to little more speed and range tnx, more power
Can you help me please ? I have 36v 17,5amp 500w chainice controller. I need to get or make 12v 160amp one. Pls help. I spend one month on resources and learning. Do I gust change mosfat, beaf up the wires ex. and change resistors
I will really appreciate you hel and experience. Im 16 buy the wey.
So your battery is 36V and 17500 mAh capacity and 500w controller? Am I right?
How to mod ebike controller while high on heroin should be the title of this video.
Lol
Yikes, that's a rude comment.
@@electricpower8130 good job
You have the part number for the mosfet your using?
Wati=speed, 500wati=35km/h aproximativ, 1000 wați controler 60km/h,, atunci de ce nu pui un controlar cu wați mai mulți este foarte simplu și mult mai sigur
Do you upgrade for other people besides yourself. Thanks
Mike Lisa I’ve had a couple requests. But nothing serious. What you gonna to upgrade?
Which on e scooters it’s not on the black wire with 2 cables or you can just watch a video about a e bike speed limit
Hi.
Great job on what you set out to do. I know this has nothing to do with the vid. Can you tell what light that is. Make model what voltage it works off. Thanks.
Thank you! It’s fog lights 12V. Check previous video about all lights. You’ll find the model in video description.
Can you able to upgrade my 35 controller for my Radrover ebike
Good afternoon, tell me the contacts on the printed circuit board: cruise control and 110% power
Hi. I don’t have it anymore. I sold my bike and all stuff with it. Sorry .
My electric scooter is a 52V build with 2x1200watt motors. It has a lot of torque but top speed is bad. Top speed only 50km/h or 30mp/h with full battery. I would like to have a better top speed, can you help me on that?
Me too same issue. 52v 1300watts x2 motor. Speed is 55kph. Do u upgrade controller)
@@ikeegroup4852 Hey, I have learned quite a lot since I wrote the comment. What exact scooter do you have? I found out my scooters motors are made that way they will last very long without problems but that means worse performance. If you want better top speed, you need to raise battery and controller voltage. If you want better acceleration and torque, buy a controller with higher amps.
i bought Langfeite 52v . yes i think i need to change controllers and upgrade batteries to 60v. But is quite exoensive. Maybe better to sell my ood scooter and buy new 60v escoot.
@@ikeegroup4852 Langfeite l9? I bought the same scooter but different branding. I am going to sell mine and buy a little bit more expensive scooter. You only need to upgrade the controllers to 60V if you buy external battery pqck instead of a whole new 60V battery pack.
Yes also diff. Brand. Which brand do u have?
The booster you’re using can I use this on a 1500 W motor? My controller is already at 45 A but my battery is limited by 50 amp output.. i’m still new to this 😅
I’m considering buying a 50 amp controller at 2000 W and I’m running a 48 V 30 amp hour battery. I really wish I would’ve bought the 52 v
My top speed on flats is around 31 Mph. I’m trying to get at least 35 mph being that it’s 1500 W!
Buy a 3s rc car lipo and wire it in series, get a lipo alarm and only use it for short bursts
Save yourself time. Get a 2000w kit that has an sw900 WITH the kit. No speed limit. Ktlcd has speed limit.
@@weaverjoshuab
The SW900 controller do the same speed as KT controllers.
There's no restrictions unless you set it.
The only difference is SW900 has much less features & options.
Why you add a resistor parallel?
Simon Voigt to low some current.
@@electricpower8130 how do you know the right value to add?
Simon Voigt you need to use formula to calculate that. I checked the transistor which cutting the voltage for whole controller. And I used that I have in the original controller it was about right one that I need. And it depend of how much you gonna tin the shunt.
Simon Voigt To find the Voltage, ( V ) [ V = I x R ] V (volts) = I (amps) x R (Ω)
To find the Current, ( I ) [ I = V ÷ R ] I (amps) = V (volts) ÷ R (Ω)
To find the Resistance, ( R ) [ R = V ÷ I ] R (Ω) = V (volts) ÷ I (amps)
To find the Power (P) [ P = V x I ] P (watts) = V (volts) x I (amps)
Nice vid do you get a another bike?
Thanks! Not yet.
what are resistor for ?
To RESIST
Hey bro can I just put a bigger controller on my bike to make it faster the one I have is very small
Yup
Nice video I got the same controller what the colour wire for the lcd screen ? There's 52 volts showing but the battery indicator is empty and motor doesn't work any ideas ? Cheers m8
Aaron Chambers check all settings on your controller.
@@electricpower8130 yeah ok cheers
hi, I just watched your video, could you give us a detailed plan of the modifications made to the controller and should you change the motor and the original battery???? Thank you
frederic liontransler So in this video you can see all mods that I did with controller. I changed all transistors, capacitors, add resistor to cut the current (not necessary) and tinned shunt. That’s pretty much it. Also I used the booster and rised some voltage which gave me that amount of speed. You can change the motor and battery if you want to. This controller can handle 60v battery easily now.
@@electricpower8130 hi i just did only shunt mod and saw this video to convert voltage. but you also mod transistor capacity and resistor. all this things are neccessary? my controller has 35A current and maximum 70.
and i also use 1500w hub motor
thanks in advance!
Hello, I would like to use my control unit 48v to 60v, in addition to the input capacitor you have to change something else?
I simply went straight to 60v . NO problems. You can seemly add 25% more voltage to ant controller..
No need, you'll be fine with 60v with a 48v controller
Ciao,i mosfet devono essere uguali?
Would this work on the Radmini 4 2018
Really need the extra speed for my area
Eric Guthrie stock controller should to work with 52v battery. If you’ll get the same Controller you can use 52v battery without any problems. Or the same device as I did. Just don’t go over 60v!
What motor do you have?
Bafang stock 750w. But it seems like it's 500w.
Great video..Can you tell me what's the mosfets you used and a link where to buy them thank you 😊
that is not cost effective to buy and replaced GENUINE mosfet... please just buy new high wattage controller... its cheaper! trust me!
This is a great video
I was always curious about if you replace your capacitors with higher voltage capacitors can you add a larger battery pack and eventually get higherspeed
the motor it small, depinde si de puterea motorului cat poate sa traga curent
καλησπερα εχω εναν κοντρολερ QS4830. 48 volt, θα ηθελα να τον μετατρέψω σε 60 volt, το μοτερ ειναι 48 volt 3000 wat.πως μπορω; καποιο σχεδιο αν υπαρχει.. σας ευχαριστω!
Δεν γνωρίζω. Πρέπει να ανοίξετε και να δείτε ποια στοιχεία είναι εγκατεστημένα σε αυτόν τον ελεγκτή. Και μετά δείτε τι μπορεί να αλλάξει για να αυξήσετε την τάση.
So you’re running 30A instead of 35A with the modified controller?
gabriel diaz kinda something like that. Almost can’t feel the difference .
ElectricPower can the stock controller be upgraded like this?
@@gbrldz0 I don't know. It needs some measurements. But that controller can easy handle 52v battery. Which means a little more speed.
it appears i have 18 mosfets. it appears that they are grouped in sets of three and negative and positive.
i destroyed 2 of the resistors, one's legs were completely gone and the other was missing one leg. i cant find a single one of these mosfets other than chinese sellers, can i swap with something comparable, but not exact specs on just the two that are bad? or will i need to replace all of them? it seems like i should replace them all or it could make things out of sync
my controller was rated for 60amps, but i just had to be greedy and do the shunt mod, it took it up to 97 amps lol
they blew on me on the trail, i was going super slow and had a watt meter showing me amps, plus a dedicated amp clamp doing the same. i was going up a steep muddy packed dirt trail in the woods and then the motor went limp.
at the time i was only going 5mph and was bouncing around 10-30 amps
Shit and shinola comes to mind.
BOOM❗️🤪
I'm curious how much it cost to upgrade for the speed on the bike since I have a rad runner and really hate when it lacks the speed to go up little hill or when every car catches up to me. Max I'd like go 30 mph. I'm also curious how your height and weight effect the drop in speed. I'm about 5"6 and 110 pounds so I know I can go 20mph easy.
You need 1000 watt motor, 35Amp controller and 52v battery! And you will enjoy that bike!
@kim james They do. I have one.
@kim james Purchased from here. bluenergy.en.alibaba.com/product/62511921813-817486283/electric_bicycle_motor_bafang_1000w_electric_bike_hub_motor_bafang_48v_1000w_geared_ebike_hub_motor_for_fat_electric_bicycle.html
@@finrider9924 suomi perkele!
I dropped in just to see if you got electrocuted
Hi could you replace my controller
I guess its faster than 32 maybe 35-40. Most led displays are not accurate
May be bro I don’t know ))
you broo, the motor it small, motor not run more, understand...
My ebike suddenly turned off all power and now wont turn back on. Do you have any idea what i can do to fix it. Many thanks
@taylor preston . Do u live in brooklyn. I can fix it. Lmk
@@smartchoice11229 No i don't live in boorklyn. thanks for the offer though.
Did you end up blowing up the controller I know it's been 2 years probably don't even have this channel anymore
Some life changes. Hopefully could buy another bike and continue to make these videos.
Great video.
Question, my battery is 48v 20ah. My controller is 48v 20ah. Manufacturer upgrade from 20ah b/c none in stock.
Will this combo work? Heard it could damage battery. I use PAS too when riding.
Hope you can help.
/Bklyn👑
You're not making sense, controllers don't have Amp Hours, they have AMPS
51 km
You can remove your speed limiter to go faster
Not worth it. Id rather invest In a 60V wicked freedom bike for 2k. That gives you 38mph top speed
This is slow my 500 watt scooter is way faster
my 55 km h ha ha ha, the motor it not power , ha ha ha, power on controler , but the motor it small...stupid
I was waiting for the car to pull out 🥲