The Xsmart single slot charger from Efest company is a Multi-functional battery charger for 3.7v rechargeable lithium batteries, such as 16340, 18350, 18650,18490,18700, 14500, 17500. The Xsmart charger automatically adjusts discharge current to charge different size battery's. And Automatically stops when Batteries are fully changed. With DC wide voltage (12-24V) charging mode Output: 5v ~ 1A
1 Amp Portable USB Output: The XSMART charger can be used to charge most USB devices, such as mobile phone, iPad, MP3, Mp4, PSP etc. To do so, insert a fully charged battery into the charger and disconnect the micro USB Charger cable.
The XSMART Charger Does not include an A/C wall cable. This charger comes with a Micro USB cable.
Auto-stop when fully charged and auto-recharge when voltage is lower than 4.05V
DC wide voltage (12v-24v) charging mode
4 kinds of protection Over discharge protection, over voltage protection, short-circuit and reverse polarity protection.
Batteries at or over 0.6V can activate by the XSMART charger