User Manual for WEN 20201Q 20V Quick Charger
Quick guide for the WEN 20201Q 20V Quick Charger. Learn how to charge your WEN 20V batteries, understand LED status indicators, and follow safety and maintenance guidelines.
Quick answers from the manual
Quick answer
- The WEN 20201Q is a 20V quick charger. To charge, plug it into a 120V outlet and slide the battery into the charger until it clicks. Solid red indicates charging; solid green and red indicate fully charged. p. 9
Key actions
- Charging the battery p. 9
First start
- Plug the charger into a 120V outlet and ensure the green light is on before inserting the battery. p. 9
Problems and fixes
Contact WEN customer service for assistance.
p. 9Maintenance and reset
- Keep ventilation openings free from dust and wipe surfaces with a damp cloth. p. 10
Technical specifications
| Parameter | Value | Meaning | Pages |
|---|---|---|---|
| Input | 120V AC, 125W | Power requirement | p. 3 |
| Output | 20V DC, 2.3A - 5A | Charging output | p. 3 |
Where to find it in the PDF
- Specifications p. 3
- Operation p. 9
Table of contents
Manual images
Click an image to enlargeQuick guide from the manual
The WEN 20201Q is a 20V quick charger designed for WEN 20V battery packs. To charge a battery, plug the charger into a 120V AC outlet and slide the battery into the charger until it clicks. The charger will automatically adjust its output to charge the battery as fast as possible without damaging it.

Product overview
The charger is designed for use with WEN 20V battery models 20202 (2.0Ah), 20204 (4.0Ah), and 20205 (5.0Ah). It features LED indicators to show the charging status and an onboard fan for cooling.
Specifications
- Model Number: 20201Q
- Charger Input: 120V AC, 125W
- Charger Output: 20V DC, 2.3A - 5A
- Product Weight: 1.5 Pounds
- Charge Time (2.0Ah): ~30 Minutes
- Charge Time (4.0Ah): ~60 Minutes
- Charge Time (5.0Ah): ~80 Minutes
Safety rules
General Safety: Always read all safety warnings. Do not use the charger in rain, snow, or damp locations. Do not block charger vents. Keep the charger and cord away from heat, oil, and sharp edges.
Battery Safety: Do not charge the battery if it has been exposed to heat or shows signs of damage (curvature, deformation, gassing). Do not short-circuit the battery terminals with metal objects. Store the battery and charger in a cool, dry place.
Operation
Charging the battery pack:

- Connect the charger to a 120V, 60Hz AC outlet. The green light will illuminate, indicating the charger is powered.
- Slide the battery all the way into the charger until it clicks. The red light will illuminate, indicating the battery is charging.
- When the battery is fully charged, both the green and red lights will turn on.
- Remove the battery from the charger and unplug the charger from the power supply.
LED display codes
- Solid Green: Plugged In and Ready to Charge
- Solid Red: Charging
- Solid Green and Solid Red: Fully Charged
- Flashing Green: Onboard Fan On
- Flashing Green and Flashing Red: Error
Maintenance and storage
- Routine Inspection: Before each use, check for loose hardware, damaged battery packs, or cracked parts.
- Cleaning: Keep ventilation openings free from dust and debris. Wipe surfaces with a damp cloth and mild soap. Do not use solvents.
- Storage: Allow the charger to cool before storing it in a clean, dry place away from children.
Practical help
Common problems
Ensure the battery is fully inserted into the charger. Check if the power outlet is working. If the error code (flashing green and red) appears, contact WEN customer service.
Ensure the ventilation openings are free from dust and debris. Allow the battery to cool to room temperature before charging if it was used continuously.
Before use
- Inspect the charger and cord for any damage.
- Ensure the power outlet is 120V AC.
- Verify the battery is a compatible WEN 20V model (20202, 20204, or 20205).
- Ensure the work area is clean and well-lit.
- Check that the charger vents are not blocked.
Specs in practice
- Charger Input
- 120V AC, 125W - Standard household electrical requirement.
- Charger Output
- 20V DC, 2.3A - 5A - Variable output for fast charging.
Images and diagrams
- The charger features a slot for the battery and LED indicators to show charging status.
Model compatibility
- Compatible with WEN 20V battery models 20202, 20204, and 20205.
Manual page author
Emily Carter
User documentation editor
Prepares concise manual descriptions and highlights the most useful setup, operation, and maintenance information for readers.