AmazonBasics U421 AA AAA battery charger

AmazonBasics U421 AA AAA battery charger.

Input voltage: 5 VDC 2.1 A.
Output voltage: 1.4 V DC 3.6 A, 1.4 V DC 1.5 A.
Compatible with AA and AAA NiMH batteries.
Charging time for 4 batteries is 2.7 hours.
Smart charging with individual channels charges 1 - 4 NiMH batteries.
Battery capacity check, display of faulty or disposable batteries.
Three-color LED indicators showing battery status and charging status.
USB interface for fast and convenient use anywhere.

Specifications:

Brand: AmazonBasics.
Model: U421.
Color: black.
Used product.
No user manual.

Package contents:

1 x AmazonBasics U421 AA AAA battery charger.

Used product.
Checked and tested, fully working, practically like new.
No packaging.
No manual.