Li-Ion Smart Charger for 3.7v cells. This charger has a 2.1mm plug 

 

Charge port:DC  5.5*2.1MM

Input Voltage: 100—240V

Output voltage: 4.2V

Output current: peak 2A;

Power:12W

3.7v Li-ion Smart Charger

SKU: Li-ionCHGR
$10.99 Regular Price
$8.99Sale Price