Cost effective and spacing saving with all the safety features. The Efest Slim K2 battery charger is an excellent battery charger. It's great compact charger for home or travel.
The Efest Slim K2 is a professional portable two-slot Li-ion battery charger with a Micro USB charging port. It has a fast charging mode that is 1.0A (4.2V 2pcs x 1.0A) and can accept 3.6V or 3.7V lithium batteries in various sizes.
Reverse polarity protection
Auto-detect charging function
Short circuit protections
LED indicator that displays battery life
Monitors batteries separately
This charger is compatible with most types of cylindrical lithium batteries ranging in size from 10440 to 18650
Do NOT leave batteries charging unattended/overnight!