VOLTCRAFT VC-BC-2100 Universal Round Cell Charger for NiMH/NiCd and Li-Ion Batteries (AA, AAA, AAAA, C, 10440, 14500, 18650, 21700, 26650, 26700 and more) VC-17666030

In a workshop where cordless tools and high-drain devices are daily companions, keeping rechargeable batteries in top condition is essential. The VOLTCRAFT VC-BC-2100 handles that task across four independent slots, accepting a wide range of cylindrical cells from compact AAA to large 26700. Whether you are cycling NiMH cells for a camera flash or topping up Li-Ion batteries for a vape mod, this charger adapts to your workflow.

Key specifications

• Charger type: Universal round cell charger with 4 independent slots
• Compatible chemistries: NiMH, NiCd, and Li-Ion (3.7V)
• Supported NiMH/NiCd sizes: AAA (Micro), AA (Mignon), C (Baby)
• Supported Li-Ion sizes: 10440, 14500, 14650, 16340, 17335, 17500, 17670, 18350, 18500, 18650, 20650, 20700, 21700, 22500, 22650, 22700, 25500, 26500, 26650, 26700
• Max charging current: 3000 mA (1 slot), 2000 mA (2 slots), 1000 mA (4 slots)
• Selectable charging currents: 500mA, 1000mA, 1500mA, 2000mA, 2500mA, 3000mA
• Selectable discharge currents: 250mA, 500mA
• Charging modes: Charge, Discharge, Test (capacity check), Refresh (cycle)
• Display: LCD with backlight
• Input voltage: 12V DC (AC adapter included: 100-240V AC to 12V DC / 3A)
• USB output (power bank function): 5V / 2.1A
• Safety features: Short-circuit protection, reverse polarity protection, overcharge protection, temperature monitoring, defective cell detection
• Charging method: CC/CV for Li-Ion, -dV/dT for NiMH/NiCd
• Operating temperature: 0 to 40 °C

Why choose it

The VC-BC-2100 stands out with its independent slot control, allowing you to charge different battery types and sizes simultaneously. The selectable charging currents let you balance speed and battery longevity, while the discharge and test modes help you assess the true capacity of aging cells. The backlit LCD provides clear readouts of voltage, current, and capacity, and the built-in USB output turns the charger into a power bank for emergency phone charging.

Ideal use cases

• Charging and maintaining batteries for high-drain devices like flashlights, cameras, and toys
• Testing and refreshing older NiMH cells to restore performance
• Charging Li-Ion cells for vape mods, power tools, and DIY electronics projects
• Using as a power bank to charge a smartphone or tablet via the USB output

Good to know

The charger includes an AC adapter, so it is ready to use out of the box. It supports a wide range of Li-Ion sizes, including the popular 18650, 21700, and 26650, making it a versatile addition to any battery enthusiast's toolkit. The automatic detection of defective cells and temperature monitoring adds an extra layer of safety during charging.