USB Dual Battery Charger fits Canon NB-13L

Product Highlights
Allows charging 2 batteries at the same time
Prolongs your photography time
Double LED indicators display the charging status of both batteries
With a built-in USB cable for easy carrying
USB port allows charging the batteries wherever and whenever
When the batteries are about to overheat, the charger will sense and stop charging immediately
Automatically detects when the batteries are fully charged and stops charging to prevent damage to your batteries
Specification
Input: DC 5V—2.2A (Min)
Output: DC 4.2V—600mA 
Dimension: 80 x 58 x 25mm
Material: ABS
Fits
Canon NB-13L
JJC B-NB13L