Search found 48 matches

by Vikingimike01
May 16 2019 10:06am
Forum: E-Bike General Discussion
Topic: Blown new MOSFET controller!
Replies: 36
Views: 1812

Re: Blown new MOSFET controller!

No idea how to do that.. I may go to an electricity store and let them handle it, if they can. The seller is helping me as well, but I need to wait 1 day for each response.
by Vikingimike01
May 16 2019 6:04am
Forum: E-Bike General Discussion
Topic: Blown new MOSFET controller!
Replies: 36
Views: 1812

Re: Blown new MOSFET controller!

Hello! Update.

I got the board out. Took 3 pics of the things I found damaged. Theres a pic wich shows the whole board too.

There is white soot on the board, very minimal, wich is probably leaked electrolite from the capacitor. Look at the top left corner.
by Vikingimike01
May 14 2019 5:44pm
Forum: E-Bike General Discussion
Topic: Blown new MOSFET controller!
Replies: 36
Views: 1812

Re: Blown new MOSFET controller!

White and very very thick.

Can't get the board out. I contacted the seller, he may be able to help.
by Vikingimike01
May 14 2019 4:44am
Forum: E-Bike General Discussion
Topic: Blown new MOSFET controller!
Replies: 36
Views: 1812

Re: Blown new MOSFET controller!

I'll post more pics. The screws were in a row about an inch apart. It may be hot glued or just glued cause under the heat sink screws there was like a weird glue kinda material that was still on the screw treads. Like hot glue...
by Vikingimike01
May 14 2019 2:10am
Forum: E-Bike General Discussion
Topic: Blown new MOSFET controller!
Replies: 36
Views: 1812

Re: Blown new MOSFET controller!

There will be screws holding the heatsink bar the FETs are mounted to, to the case itself. Those must be removed to take the controller apart. They could be along any side, or top or bottom. That said, the fluffy stuff is what's left of the insides of the main power capacitors, and any others along...
by Vikingimike01
May 14 2019 2:07am
Forum: E-Bike General Discussion
Topic: Blown new MOSFET controller!
Replies: 36
Views: 1812

Re: Blown new MOSFET controller!

I attached the picture. Other side same thing. Removed. Can't get it out. Nothing looks fried from the back. A picture from the other side would be helpful, because on that side, you should have the whole cover off. I also agree, loosening those wire nuts to slide the cover further to get a better ...
by Vikingimike01
May 13 2019 5:10pm
Forum: E-Bike General Discussion
Topic: Blown new MOSFET controller!
Replies: 36
Views: 1812

Re: Blown new MOSFET controller!

Could there be a high voltage safety fuse by any chance? It's a RisunMotor MOSFET 120a 72v controller.
by Vikingimike01
May 13 2019 5:08pm
Forum: E-Bike General Discussion
Topic: Blown new MOSFET controller!
Replies: 36
Views: 1812

Re: Blown new MOSFET controller!

I attached the picture. Other side same thing. Removed. Can't get it out. Nothing looks fried from the back.
by Vikingimike01
May 13 2019 11:40am
Forum: E-Bike General Discussion
Topic: Blown new MOSFET controller!
Replies: 36
Views: 1812

Re: Blown new MOSFET controller!

I took all the screws out, and tried to pull by the wires with no luck. Not comming out! It has a nice smell inside and lots of white fluffy cotton like material.
by Vikingimike01
May 13 2019 10:08am
Forum: E-Bike General Discussion
Topic: Blown new MOSFET controller!
Replies: 36
Views: 1812

Re: Blown new MOSFET controller!

It was not parallel! I ran ~160v trough it!

What do I do to fix the controller? I can't remove it from the casing, no matter how hard I pull. I watched a YT video.

Is there like any overvolt protection in it? It's a RisunMotor controller.
by Vikingimike01
May 13 2019 7:52am
Forum: E-Bike General Discussion
Topic: Blown new MOSFET controller!
Replies: 36
Views: 1812

Blown new MOSFET controller!

Hey! I installed my first 5000W ebike kit, it's a 72v 120A mosfet controller. I wired everything correctly, and only plugged in: 1 of the 2 brakes Display Throttle Wheel 3 different wires with the colours hall sensor Nothing else. And, i wired 2 72v battery packs into parallel. Was careful with the ...
by Vikingimike01
Apr 22 2019 2:33pm
Forum: E-Bike General Discussion
Topic: Need help with battery wiring
Replies: 4
Views: 400

Re: Need help with battery wiring

Thanks for the help! Well I'm still waiting for shipping on the motor (Tomorrow is last day i can report item not arriving)

i have been waiting 4 weeks for shipping
by Vikingimike01
Apr 20 2019 6:58am
Forum: E-Bike General Discussion
Topic: Need help with battery wiring
Replies: 4
Views: 400

Re: Need help with battery wiring

Hey, thanks for the reply. It's a MOSFET 120A controller, but I can set it to max amper usage, also will set it to ECO mode. It can be set to show amper draw, if I keep an eye on it, any time except accelerating, I keep the amper draw below 60, would that be OK? It's 150A max that you can pull from ...
by Vikingimike01
Apr 20 2019 3:16am
Forum: E-Bike General Discussion
Topic: Need help with battery wiring
Replies: 4
Views: 400

Need help with battery wiring

Hey forum! So, I bought 2x 72v, 30A continous output batteries, 75A max. I am planning on wiring it in parallel, to increase max amper. It has a BMS. But, when I told the seller, he said this: "This battery continuous current is 30A , it dertimes by BMS , it won't change to 60A even you use two bat...
by Vikingimike01
Apr 03 2019 11:04am
Forum: E-Bike General Discussion
Topic: Question about battery for Ebike
Replies: 27
Views: 1782

Re: Question about battery for Ebike

Yeah, I'm currently looking for a bike with 155mm dropout.
Or at most 1cm over or under that, but steel frame, so I can bend it a little with a bolt.
by Vikingimike01
Apr 02 2019 10:58am
Forum: E-Bike General Discussion
Topic: Question about battery for Ebike
Replies: 27
Views: 1782

Re: Question about battery for Ebike

Thank you! I am going to carry my thermometer around then.. Just kidding! But, I'll pedal too. Anyways. Should I get like a temperature sensor or something? Also. The chinese 2 batteries I'm planning to order are Li-Ion with 60A total continous (150 max) 370mm*125mm*70mm and I'll have 2 of these. Wi...
by Vikingimike01
Apr 01 2019 2:55pm
Forum: E-Bike General Discussion
Topic: Question about battery for Ebike
Replies: 27
Views: 1782

Re: Question about battery for Ebike

Oof. I'm going with the hub motor. The guy told me it will be plenty enough. And, there are good flats where I live, long streets, where there is basically no traffic (Kinda like a dirt road) but when I go to school I'm going up/down the mountain. It's not like a full on mountain, but at least a 30 ...
by Vikingimike01
Apr 01 2019 11:34am
Forum: E-Bike General Discussion
Topic: Question about battery for Ebike
Replies: 27
Views: 1782

Re: Question about battery for Ebike

Sorry, I'm not going to get anything other than hub drive. I had enough of chain bullshits FOREVER. Because of my 2 stroke 66cc!!

It will be a 4.0 fat tire bike.
by Vikingimike01
Apr 01 2019 3:09am
Forum: E-Bike General Discussion
Topic: Question about battery for Ebike
Replies: 27
Views: 1782

Re: Question about battery for Ebike

Yet. I'm getting an other one of those batteries when i have the money :)
by Vikingimike01
Mar 31 2019 1:57pm
Forum: E-Bike General Discussion
Topic: Question about battery for Ebike
Replies: 27
Views: 1782

Re: Question about battery for Ebike

70A is needed to get you that 5000W at 72V and that shouldn't be a problem for a good 18650 pack of 72V20Ah, they would be 20s8P - many batteries that can do 10A these days. I'd still buy something else than this kit if you're looking at going 40-50km/h, you'd be better off with a smaller kit. I am...
by Vikingimike01
Mar 31 2019 1:09pm
Forum: E-Bike General Discussion
Topic: Question about battery for Ebike
Replies: 27
Views: 1782

Re: Question about battery for Ebike

Hello! About the batteries, thats the continous output they can handle. I have experience (Not with electric) because i had a 66cc 2 stroke bike kit before, i went 60km/h on that, but its too much maintenance, and fuel is getting expensive, so I'm selling that. Had it for more than a year. The max o...
by Vikingimike01
Mar 31 2019 5:31am
Forum: E-Bike General Discussion
Topic: Question about battery for Ebike
Replies: 27
Views: 1782

Question about battery for Ebike

Hey forum! I'm new here, got sent from a different forum, to ask here too. I'm planning on building a 5000 watt, hub driven, electric bike. It's a complete kit you can buy from ebay: https://www.ebay.com/itm/E-Bike-Hi-Power-72V-5000W-Ebike-Conversion-Kit-Panel-Display-Electric-Bicycle/183593899318?v...