4QD motor controllers
for battery use

Motor controllers Accessories Shopping cart
Instruction manuals Specifications and features Questions answered
Service and fault finding Wiring diagrams Application notes

Welcome to 4QD's home page.

4QD manufacture electronic motor speed controllers for battery operated electric motors.

Quick Site Index.

New Owners

We are pleased to announce that 4QD is now under new ownership. We'd like to assure all our customers that we will continue to produce and support the existing product range. We will also be working with Richard Torrens to extend the range, and if you have any suggestions we'd be keen to hear from you.

Regular customers may notice a difference to the shopping basket on the website. We now use the Romancart shopping basket, and support secure payment by credit card (via Worldpay) or Paypal.

Steve Smith & Erica Richardson

Sales section

Information section

Service Section

Miscellaneous Section

Large Site Warning

There is a lot of information in this site, which is one of three 4QD sites: if you are interested in the information on offer you will surely need to bookmark it for many return visits! The size of the site means it can get difficult to find things - especially if you do not know what the site contains!

The site is therefore divided into commonly used areas - but there are more not-so-common areas, so do keep reading!

Page Information

© 1996-2015 4QD/4QD Ltd.
Page's Author: Richard Torrens
Document URI: www.4qd.co.uk/index.html
Last modified: 2015