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

Why not use power tool batteries?

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

Why not use power tool batteries?

Old 10-27-22, 03:22 AM
Senior Member
Thread Starter
Join Date: Jun 2009
Posts: 693
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 195 Post(s)
Liked 34 Times in 19 Posts
Why not use power tool batteries?

I have an EGO lawnmower. Has anyone figured out how to connect the battery to an ebike system? It would be removable and the cells from a reputable manufacturer.
adlai is offline  
Old 10-27-22, 03:51 AM
55+ Club,...
tds101's Avatar
Join Date: Aug 2012
Location: Somewhere in New York, NY
Posts: 3,917

Bikes: 9+,...

Mentioned: 11 Post(s)
Tagged: 0 Thread(s)
Quoted: 953 Post(s)
Liked 600 Times in 410 Posts
Look through this section, as this has already been discussed/done.
If it wasn't for you meddling kids,...
tds101 is offline  
Likes For tds101:
Old 10-27-22, 08:18 AM
Senior Member
Join Date: Jul 2014
Location: socal
Posts: 3,720
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 744 Post(s)
Liked 582 Times in 441 Posts
There was an individual in San Diego selling a system (endless sphere) that used tool cells. It didn't seem to generate much interest even though FME with tools those are excellent cells.
2old is offline  
Old 11-03-22, 09:13 PM
Senior Member
Doc_Wui's Avatar
Join Date: Jul 2015
Location: Chicago Suburbs
Posts: 1,326

Bikes: GT Transeo & a half dozen ebike conversions.

Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 327 Post(s)
Liked 221 Times in 157 Posts
I think 56V EGO batteries are popular for DIY ebikes. Get a blown out charger and re-use the docking part on the bike. One thing about a name brand tool battery is that it's well made and less likely to explode/burn like a cheaply made no name ebike batery.

I had a 40V Ryobi weedhacker pack, only 2.5AH, but it could run my ebike for 10 miles. Not that great, and another new one was expensive. I already had ebike batteries so it was for grins. Only worth doing if you have easy access to the batteries. Not worth buying them new, as other batteries are less expensive.

For example, used scooter batteries from defunct rental fleets are often quite well made, and use quality cells. There are resellers that sold them, and I had a couple of batteries that only cost me $25 each, but had LG and Pansonic cells and better built internally than any of my dedicated store bought ebike batteries. I used them on my DIY ebikes for a while.
Doc_Wui is offline  
Likes For Doc_Wui:
Old 11-04-22, 08:50 AM
Senior Member
Join Date: Jul 2005
Posts: 5,405
Mentioned: 24 Post(s)
Tagged: 0 Thread(s)
Quoted: 2100 Post(s)
Liked 493 Times in 359 Posts
Part of what you pay for with a quality e-bike battery is an obsessive attention to weight reduction. Tool packs, unless modified, will have heavy case and attachment hardware and anyone asking the question probably does not plan on doing the work to get them stripped down enough to use on an e-bike.
Leisesturm is offline  

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 or Share My Personal Information -

Copyright © 2023 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.