18650 Battery Charger, 2 Bay Universal Charger LCD Display for Rechargeable 3.7V

The Gleedideneny 2-Bay Universal Battery Charger is a multi-chemistry charging station built for users managing rechargeable cylindrical cells. Designed to handle varying voltages and sizes, it solves the hassle of keeping different dedicated chargers for household rechargeables and specialized lithium cells. With independent micro-computer management for each slot, it offers a single, organized desktop solution for keeping your everyday power cells ready for use.

A standout element is the high-definition LCD screen. It delivers detailed information on each slot, tracking the detected battery type, real-time voltage, charge percentage, charging current, time elapsed, and charging history. The system automatically identifies standard 1.2V Ni-MH and 3.7V Li-ion cells. For specialized chemistries like 3.2V LiFePO4 and 3.8V IMR cells, a short press of the dedicated channel button within five seconds of insertion manually sets the correct charging mode.

Current output is adjustable across three levels (500mA, 1000mA, and 2000mA) by long-pressing the channel button. When you need faster turnaround on a single lithium cell, slot two supports a dedicated 2000mA maximum rate. Built-in safety features handle over-charging, over-discharging, reverse polarity, and short circuits, while also identifying broken cells to prevent unsafe charging cycles.

Keep in mind that this unit cannot charge 1.5V batteries, and the high-speed 2000mA setting is restricted strictly to slot two. Operating rules require indoor use only, and users must disconnect the unit from power and remove charged cells promptly after a cycle completes. You must also select currents that do not exceed the recommended limit for your specific battery type.

Verdict: The Gleedideneny 2-Bay Charger is a dependable, versatile option for anyone working with multiple rechargeable cell sizes like 18650s, 26650s, or standard Ni-MH AA/AAA batteries. Its clear status screen and selectable charging currents make it a practical daily power station for multi-cell households.

• Input Power: AC 110-240V 50/60Hz (cable included) / DC 12V 1A
• Output Current (Li-ion/IMR/LiFePO4): 2000mA*1 (slot #2 only), 1000mA*2, 500mA*2
• Output Current (Ni-MH/Ni-Cd): 500mA*2
• Supported Battery Chemistries: Ni-MH/Ni-Cd (1.2V), Li-Fe (3.2V), Li-ion (3.7V), Li-ion IMR (3.8V)
• Supported Sizes: 26650, 20700, 18650, 18490, 18350, 17670, 17500, 16340 (RCR123), 14500, 10440, AA, AAA, SC, C
• Display: Multi-functional HD LCD

A great fit if you:

• Own a mix of lithium-ion cells like 18650s and standard Ni-MH AA or AAA batteries.
• Want live feedback on charging percentage, battery voltage, time, and current.
• Need the option to charge a single lithium battery rapidly at 2000mA.
• Value safety features that detect defective cells and prevent reverse polarity.

Consider something else if you:

• Need to charge disposable or rechargeable 1.5V batteries.
• Require more than two charging bays running simultaneously.
• Plan to use your charger outdoors.

Can this unit charge standard 1.5V batteries?
No, it cannot charge 1.5V batteries. It is designed for 1.2V Ni-MH/Ni-Cd, 3.2V LiFePO4, and 3.7V/3.8V Li-ion cells.

How do I change the charging current?
You can adjust the current between 500mA, 1000mA, and 2000mA by long-pressing the corresponding slot button. Note that 2000mA is only available in slot two for compatible lithium cells.

What information does the LCD screen provide?
The high-definition display shows battery type, voltage, charging percentage, charging history, elapsed charging time, and charging current.

How do you set the charger for 3.2V LiFePO4 or 3.8V IMR cells?
After inserting the battery with the power connected, short press the channel button within five seconds to manually cycle to the correct chemistry mode.