The Efest Slim K1 Charger is a high quality with a cost-efficient and portable design. The Efest Slim K1 Charger is a single slot charger with Micro USB input and charges at 1A. The LED indicates when your battery is charging and when the battery is fully charged.

The Efest Slim K1 Charger features reverse polarity, short circuit, overcharge protection and many more safety features. The Efest Slim K1 Charger can charge different types of 3.6V/3.7V lithium batteries commonly used in electronic cigarettes, flashlights, electric tools, and more.

Features and Specs:

Compatible with: 10440, 14500, 14650, 16340, 16650, 17650, 17670, 18350, 18490, 18500, 18650, 20700, 21700, 26650
Portable Design with Quality Piano Strings
Battery Life LED Indicator Light
Single Slot 5V/1A Micro USB Charger
AC Input Power: AC 100~240V 50/60Hz
DC Output Power: DC 5V 1A
DC Input Power: DC 5V 1A
1A CC Current: 1000mA (+/-10%)
Auto Cut-Off Voltage: 4.20 (+/-0.05V)
CV Cut-Off Current: <100mA
Standby Current: <20mA
Activation Current: 50mA~100mA
Auto Recharge Voltage: 4.10 (+/-0.10V)
Operation Temperature: 0C ~ 40C
Storage Temperature: -40C ~ 70C

Charge your batteries with the Efest Slim K2 Charger. The Efest Slim K2 Charger is a high quality with a cost-efficient and portable design. The Efest Slim K2 Charger is a dual slot charger with Micro USB input and charges at 1A. Each slot is monitored independently to provide the most efficient charge. The LED indicates when your battery is charging and when the battery is fully charged. The Efest Slim K2 Charger features reverse polarity, short circuit, overcharge protection and many more safety features. The Efest Slim K2 Charger can charge different types of 3.6V/3.7V lithium batteries commonly used in electronic cigarettes, flashlights, electric tools, and more.

Features and Specs:

Compatible with: 10440, 14500, 14650, 16340, 16650, 17650, 17670, 18350, 18490, 18500, 18650, 20700, 21700, 26500, 26650
Portable Design with Quality Piano Strings
Battery Life LED Indicator Light
Dual Slot 5V/1A Micro USB Charger
AC Input Power: AC 100~240V 50/60Hz
DC Output Power: DC 5V 1A
DC Input Power: DC 5V 1A
1A CC Current: 1000mA (+/-10%)
Auto Cut-Off Voltage: 4.20 (+/-0.05V)
CV Cut-Off Current: <100mA
Standby Current: <20mA
Activation Current: 50mA~100mA
Auto Recharge Voltage: 4.10 (+/-0.10V)
Operation Temperature: 0C ~ 40C
Storage Temperature: -40C ~ 70C

The Efest PRO C2 Charger is a simple and cost-efficient charger designed by Efest. The Efest PRO C2 Charger is a two bay charger powered by a AC wall plug and can charge two batteries at 1A each at the same time. The LED indicator light is red when your battery is charging and turns green when the battery is fully charged. The Efest PRO C2 Charger can charge different types of 3.6V/3.7V lithium batteries commonly used in electronic cigarettes, flashlights, electric tools, and more.

Features and Specs:

Compatible with: 10440, 14500, 14650, 16340, 16650, 17650, 17670, 18350, 18490, 18500, 18650, 20700, 21700, 22650, 26500, 26650
Battery Life LED Indicator Light
Two Bay 1A Charger
Non-Slip Mat
AC Input Power: AC 100~240V 50/60Hz
DC Output Power: DC 12V 1A
DC Input Power: DC 12V 1A
1A CC Current: 1000mA (+/-10%)
Auto Cut-Off Voltage: 4.20 (+/-0.05V)
CV Cut-Off Current: <100mA
Standby Current: <20mA
Activation Current (Battery Voltage <2.90V): 10mA~50mA
Auto Recharge Voltage: 4.10 (+/-0.10V)
Operation Temperature: 0C ~ 40C
Storage Temperature: -40C ~ 70C

The Efest PRO C4 Charger is a simple and cost-efficient charger designed by Efest. The Efest PRO C4 Charger is a four bay charger powered by a AC wall plug and can charge four batteries at the same time. When charging one or two batteries at the same time, the charging current will adjust intelligently to 1A. When charging three or four batteries at the same time, the charging current will adjust intelligently to 0.5A. The LED indicator light is red when your battery is charging and turns green when the battery is fully charged. The Efest PRO C4 Charger can charge different types of 3.6V/3.7V lithium batteries commonly used in electronic cigarettes, flashlights, electric tools, and more.

Please note, due to size limitations, you may only charge up to (2) 26500 or 26650 batteries at the same time.

Features and Specs:

Compatible with: 10440, 14500, 14650, 16340, 16650, 17650, 17670, 18350, 18490, 18500, 18650, 20700, 21700, 22650, 26500, 26650
Battery Life LED Indicator Light
Four Bay 1A Charger
Non-Slip Mat
AC Input Power: AC 100~240V 50/60Hz
DC Output Power: DC 12V 1A
DC Input Power: DC 12V 1A
1A CC Current: 1000mA (+/-10%)
Auto Cut-Off Voltage: 4.20 (+/-0.05V)
CV Cut-Off Current: <100mA
Standby Current: <20mA
Activation Current (Battery Voltage <2.90V): 10mA~50mA
Auto Recharge Voltage: 4.10 (+/-0.10V)
Operation Temperature: 0C ~ 40C
Storage Temperature: -40C ~ 70C