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The HD-8991B is a specialized battery charger designed specifically for 3.7V li-ion cylindrical rechargeable batteries such as 18650, 16340, 26650, and more. It can charge up to 2 batteries at the same time, or you can use either slot to charge just 1 battery. The charger has a quick charge feature with an input of 5V/2A and an output of 4.2V/900mA x1 or 500mA x2. It takes only 7 hours to fully recharge 2pcs 3000mAh batteries simultaneously, and each charging slot works independently, so you can charge 1/2/3/4 pcs batteries at a time.
The HD-8991B charger has 5 layers of protection IC built-in, which includes over-voltage, over-current, short-circuit, high-temperature, and surge protection. It also has an MCU control Smart Charging feature that ensures safe and efficient charging of your batteries.
The charger has a charging LED indicator that shows a red light when the battery is being charged, a full charging LED indicator that shows a green light when the battery is fully charged, and an error LED indicator that shows a red LED flicker if there is a problem with the battery.
Technical Specifications:
Input: AC 100-240V 47/63Hz
Output: 4.2V DC 1200mA
Charging Slots: 2 battery slots
Charge Modes: Quick Charge / Independent Slot Charging
Charging Current: 4.2V/900mA x1 or 500mA x2
Charging Time: 7 hours for 2pcs 3000mAh batteries simultaneously
Protection Features: Over-voltage / Over-current / Short-circuit / High-temperature / Surge protection
LED Indicators: Red Charging LED / Green Full Charging LED / Red LED flicker Error Indicator
MCU Control: Smart Charging
What's in the Box:
1 x HD-8991B Battery Charger Tester with LCD Display
1 x AC Adapter
