SCIGOLD Bench Dock — 4-Bay 18650/21700 Li-ion Battery Charger with LCD (CW401)
4-bay battery charger for 18650 / 21700 / 3.6V Li-ion cells. Per-bay LCD shows live voltage & charging status. USB-C input, QC2.0 fast charge.
Free US shipping on orders $35+ · 30-day returns · 12-month warranty
- SKU
- SG-C00H-0401
Free US shipping
on orders $35+
12-month warranty
from date of purchase
Secure checkout
hosted by Shopify
30-day returns
original condition & packaging
SCIGOLD Bench Dock · 4-bay Li-ion charger
Four bays. One clear screen.
Charges 18650, 21700 and other 3.6V Li-ion cells from USB-C, with live voltage for every bay.
Inside the Bench Dock
Every cell charged on its own.
Four independent bays that detect each cell, a per-bay LCD, and a USB-C input with QC2.0 fast charging.
Four bays
Four bays. Each one on its own.
Every bay monitors and charges its own cell and reports its own status, instead of sharing one charging channel across all four.
The adjustable bays take the different lengths of 18650 and 21700 cells, so you can mix sizes: an 18650 and a 21700 charge side by side.
- Up to four cells at once
- Each bay detects its cell and applies the correct Li-ion charge profile
- No manual settings required
Live LCD
Live voltage for every bay.
The LCD shows each cell's voltage and charging status in real time, so you can see which cells are still charging and which have finished, rather than reading one light for the whole charger.
USB-C input
Runs from USB-C.
Power it from a phone charger, a laptop adapter, a power bank or a car USB port, with QC2.0 fast charging. There is no proprietary barrel-jack power brick to carry.
Why this charger
One charger for 18650 and 21700.
Four independent bays
Each bay monitors and charges its own cell, up to four at once.
Auto-detect
Each bay detects its cell and applies the correct Li-ion charge profile.
Per-bay LCD
Live voltage and charging status for every bay.
USB-C input
A phone charger, laptop adapter, power bank or car USB port, with QC2.0 fast charging.
Compatibility
Takes 18650 and 21700 cells.
- SCIGOLD cells
- 18650 Standard (2,000 to 2,500 mAh), 18650 Cold-Weather (3,500 and 4,000 mAh) and 21700 (4,000 to 5,000 mAh).
- Other cells
- Other common 3.6V Li-ion cylindrical cells.
- Mixed sizes
- An 18650 in one bay and a 21700 in the next, charging at the same time.
- Power
- USB-C phone chargers, laptop adapters, power banks and car USB ports.
Good to know
- Li-ion cylindrical cells only: 3.6V cells and SCIGOLD's 3.34V Cold-Weather 18650. Do not use it for NiMH, NiZn or non-rechargeable cells.
- The screen's Ni-MH / Ni-Zn labels do not mean it charges them: use Li-ion cylindrical cells only.
- SCIGOLD 1.5V AA cells charge only in the Pocket Case (CW505) or the Home Case (CW508), not in the Bench Dock.
Specs & details
Every number, in one place.
Specifications
| Attribute | Value |
|---|---|
| Model | CW401 |
| Compatibility | 18650 / 21700 / Li-ion 3.6V cells |
| Chemistry | Li-ion only: 3.6V cells and the 3.34V SCIGOLD Cold-Weather 18650 (not for NiMH, NiZn, or non-rechargeable cells) |
| Charging bays | 4 adjustable bays, each monitored and charged independently |
| Mixed sizes | Yes: an 18650 and a 21700 can charge side by side |
| Cell detection | Automatic; each bay applies the correct Li-ion charge profile |
| Display | Per-bay LCD: live voltage and charging status |
| Input | USB-C |
| Fast charging | QC2.0 |
| SKU | SG-C00H-0401 |
Features
- 4 independent charging bays, each monitoring and charging its own cell
- Per-bay LCD shows live voltage and charging status for every bay
- Auto-detects 18650 / 21700 / 3.6V Li-ion and applies the correct charge profile
- Mix cell sizes across bays
- USB-C input with QC2.0 fast charging
About This Product
The Bench Dock is SCIGOLD’s 4-bay charger for 18650, 21700, and other common 3.6V Li-ion cylindrical cells.
It automatically detects the cell and applies the correct Li-ion charging profile. LCD display shows charging status and individual cell voltage in real time. The Bench Dock is built for Li-ion cylindrical cells only (3.6V cells, and SCIGOLD’s 3.34V Cold-Weather 18650), so do not use it for NiMH, NiZn, or non-rechargeable cells.
Frequently Asked
Quick answers, before you buy.
Can the Bench Dock charge both 18650 and 21700 cells?
How many batteries can the Bench Dock charge at once?
Can I mix different battery sizes in the Bench Dock at the same time?
What does the LCD display on the Bench Dock show?
What input does the Bench Dock use?
Does the Bench Dock work with any Li-ion cylindrical cell?
Same Series
More ways to buy.
From the Lab
