Go Back  Bike Forums > Bike Forums > Electric Bikes
Reload this Page >

Hub motor and Controller getting HOT!!!!

Electric Bikes Here's a place to discuss ebikes, from home grown to high-tech.

Hub motor and Controller getting HOT!!!!

Reply

Old 11-22-15, 03:12 PM
  #1  
dannyb1982
Newbie
Thread Starter
 
Join Date: Nov 2015
Posts: 3
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Hub motor and Controller getting HOT!!!!

Hi could really do with some advice. I've got a 24v setup ive been tryin to get running for some time now. I started buy building my own battery pack using panisonic 18650 2800mah cells and used 60 cells in groups of 10 x 6 to give me 24v 28ah using a BMS to control it. So after building the battery I brought a 24v 180w hanli hub motor from ebay and then brought a NEW 24v kit from Panda bikes so I would have the rest of the parts I need. last week I decided to have a go at testing it and found that after running the bike for only a ouple of mintes the hub and controller get very hot!!! this cant be right. please can somebody give me some advice
Attached Images
File Type: jpg
IMAG0449.jpg (97.6 KB, 6 views)
File Type: jpg
IMAG0447.jpg (99.1 KB, 5 views)
File Type: jpg
IMAG0448.jpg (99.7 KB, 2 views)
dannyb1982 is offline  
Reply With Quote
Old 11-22-15, 08:03 PM
  #2  
BruceMetras
Senior Member
 
Join Date: Aug 2005
Location: San Rafael, California
Posts: 2,061
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 94 Post(s)
Originally Posted by dannyb1982 View Post
I've got a 24v setup ive been tryin to get running for some time now. I started buy building my own battery pack using panisonic 18650 2800mah cells and used 60 cells in groups of 10 x 6 to give me 24v 28ah using a BMS to control it.
I'm new, and others more experienced will most likely chime in to narrow down the problem, but is it possible you built the battery 10s6p and have a 36v 17amp pack .. 10x3.7v = 36v - 2800mah x 6 = 17amp .. did you check the pack voltage?
BruceMetras is offline  
Reply With Quote
Old 11-23-15, 07:38 AM
  #3  
dannyb1982
Newbie
Thread Starter
 
Join Date: Nov 2015
Posts: 3
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Hi thanks for the reply, ive checked the voltage and it is reading 24.5v and I made sure I built the battery correct :-) there is 6 backs of 10 cells 6 x 4.1v and 10 x 2800 = 28ah . I'm Very sure the battery is not at fault I think it could be I've not wired the motor or hall sensor correct?
dannyb1982 is offline  
Reply With Quote
Old 11-23-15, 12:11 PM
  #4  
Doc_Wui
Senior Member
 
Doc_Wui's Avatar
 
Join Date: Jul 2015
Location: Chicago Suburbs
Posts: 569

Bikes: Diamonback, Transeo, Trek, Giant

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 124 Post(s)
You may have seen these links. I only have wired up two motors and the instructions were correct, which doesn't always happen, I guess.

The message is sometimes you can get the sensor wires crossed, and it still runs, but will be noisy, rough, or rrun hot.

https://endless-sphere.com/w/index.p...rushless_Motor

https://endless-sphere.com/forums/vi...hp?f=1&t=32455
Doc_Wui is offline  
Reply With Quote
Old 11-23-15, 06:38 PM
  #5  
dannyb1982
Newbie
Thread Starter
 
Join Date: Nov 2015
Posts: 3
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
thanks so much for your help :-) Doc_Wui the wire chart is just what I was looking for will give it a go tomorrow
dannyb1982 is offline  
Reply With Quote

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service