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

Best battery type for a 750 watt ebike?

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

Best battery type for a 750 watt ebike?

Old 07-01-19, 10:50 PM
  #1  
Jeweliamj
Newbie
Thread Starter
 
Join Date: Feb 2019
Posts: 4
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
How to make my ebike speed faster??

Hello, so currently I have a 36v 10.4ah battery paired with my 36v 750watt wheel conversion kit (front wheel). Its a 24 inch bike. My current max speed is 24mph. If I buy a larger size battery will that increase my speed? What is the biggest battery I can buy that will work safely with my motor??

Last edited by Jeweliamj; 07-01-19 at 10:57 PM.
Jeweliamj is offline  
Old 07-01-19, 11:38 PM
  #2  
MikeyMK
Cycleway town
 
MikeyMK's Avatar
 
Join Date: Jul 2014
Location: Milton Keynes, England
Posts: 1,402

Bikes: 2.6kw GT LTS e-tandem, 250w Voodoo, 250w solar recumbent trike, 3-speed shopper, Merlin ol/skl mtb, 80cc Ellswick

Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 568 Post(s)
Liked 169 Times in 117 Posts
Your top speed won't change, as your controller governs that. The motor itself can give higher speed with more volts, but running a 48v system could burn it out fast if it's not engineered for it.

A bigger capacity 36v battery will mean you can hit your current high speeds for longer, without it cutting out and having to use lower speeds for range.

The bigger the capacity, the more amps your battery can give without there being too much stress on it.
MikeyMK is offline  
Old 07-01-19, 11:41 PM
  #3  
2old
Senior Member
 
Join Date: Jul 2014
Location: socal
Posts: 3,001
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 561 Post(s)
Liked 345 Times in 256 Posts
Some 36V systems use controllers rated for higher voltage. For many, the next step up is 63V, and you can use a 52V battery (14s charges to 4.2V per cell or 58.8V) and increase your speed (but that also depends on the amount of amperage the controller is rated for). You need to ask the manufacturer or open the controller to determine its capacity. You can learn about this with the motor simulator at ebikesca. The "experts" at endless sphere usually say 750w (20 amp controller X 36V = 720w) is good for 18 - 20 mph, and 1500w (30 amps X 52V = 1560w) for 32 - 35 mph as an estimate, although there are other considerations that will make this more complicated than it already seems. As an example, I have a YESCOM 1000w motor with a 30 amp controller. With a 52V, 10 ah battery, it easily exceeds 33 mph. BTW, IMO, a larger battery with the same voltage isn't a viable solution.
2old is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
owaishortus
Electric Bikes
2
04-21-18 10:24 PM
SirKhaal
Electric Bikes
13
09-12-16 09:59 AM
ebike newbie
Electric Bikes
6
10-15-15 10:27 AM
John Phoenix
Electric Bikes
6
10-25-10 07:37 AM
paverman4u
Electric Bikes
7
09-19-10 01:42 AM

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 - Do Not Sell My Personal Information -

Copyright 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.