The Efest Slim K2 USB Charger is a dual slot/bay lithium Ion battery charger for vape external batteries, with a micro USB input and 1A charging. Each slot is monitored independently to provide the most efficient charge for your electronic cigarette (e-cigarette) batteries. The LED indicator light also informs you when your battery is charging and when the battery is fully charged.
It features reverse polarity, short circuit, overcharge protection and many more safety features to keep battery charging safe.
- A USB port with at least 2A output is recommended.
- See our battery safety blog post for information on safely using your e-cigarette batteries.
Features & Specs
- Compatible with: Li-ion 10440, 14500, 14650, 16340, 16650, 17650, 17670, 18350, 18490, 18500, 18650, 20700, 21700, 26500, 26650
- Charging rate: 2 x 1A, 1 x 1A
- Auto voltage cutoff: 4.20V±0.05V
- Operation temperature: 0˚C - 40˚C
- Input: Micro USB DC 5V 2A
- 1.48V±1% 500mA×2
- 1000mA ×1
- Efest Slim K2 USB Battery Charger
- Micro USB power lead
- User manual
- Warranty card
This product does NOT contain nicotine
PRO: works as expected, easy set-up small compact.
CON: a bit flimsy, feels like it could break easily.