Efest SLIM K4 Type-C USB Charger

The Efest SLIM K4 Type-C USB Charger is a compact and intelligent 4-bay battery charger designed for vapers who need safe, efficient, and reliable charging for their external batteries. Featuring a modern USB-C input, the Efest SLIM K4 USB-C Charger supports automatic battery detection and independent charging for each slot, ensuring optimal charging performance and enhanced battery safety. The Efest SLIM K4 Smart Charger is compatible with a wide range of lithium-ion batteries, including popular 18650, 20700, and 21700 cells. With built-in protection against short circuits, overcharging, over-current, reverse polarity, and overvoltage, the charger provides peace of mind while extending battery lifespan. Its slim, lightweight design makes it perfect for home use or travel. Whether you're looking to buy Efest SLIM K4 Type-C USB Charger online or upgrade your current charging setup, the Efest SLIM K4 Battery Charger delivers dependable performance and user-friendly operation in a compact package. Efest SLIM K4 Charger Features 4-bay intelligent battery charger USB Type-C charging port Independent charging and monitoring for each slot Auto-detect charging current Compatible with 10440–26650, 20700 and 21700 Li-ion batteries Smart LED charging indicators Low-voltage activation recovery function Automatic full-charge cut-off Reverse polarity protection Short-circuit protection Overcharge protection Over-current protection Lightweight and portable design Fire-retardant ABS construction Efest SLIM K4 Charger Specifications Efest SLIM K4 Type-C USB Charger 4 Slots USB Type-C DC 5V / 2A 1A × 2 Slots / 0.5A × 4 Slots 10440, 14500, 16340, 18350, 18650, 20700, 21700, 26650 and more CC & CV Charging LED Status Indicators ABS Fire-Retardant Plastic Short Circuit, Overcharge, Overvoltage, Over-current, Reverse Polarity Black