The K2, by eFest, is a slick, compact and portable USB powered charger. The K2 has dual slots for any lithium ion batteries and is 100% fully automatic. With a DC input of 2 Amps, this charger will charge 18650's quickly and treats each channel independently. 2 LCD displays show each batteries' charge state and cuts off automatically. These chargers include reverse polarity protection, short circuit detection, and automatic recovery mode (for deeply discharged cells). Note, this is not an AC charger so it does require a USB port (Not included). A USB cable is included and a 2 Amp power supply is recommended for faster charging (i.e. any new Android, iPhone, or Tablet USB Plug). Also makes a great Car Charger for vapers on the go.
Note: This can charge 2 x 18650 batteries, but will also accept the following sizes: 20700, 18350, 16340, 10440, 26650, 18500, 17340, 14500, 26500.
What's in the Box?
1 x eFest Slim K2 Charger
1 x USB to Micro USB Adaptor Cable
Perfect for my desk and my briefcase, I was tired of lugging around larger chargers. Wished it had an A/C power supply but it was like $10 so I'm more than satisfied. Super fast shipping.
We score 4.9 out of 5 based on 807 reviews.