The Model BS-18650-4 is a high-capacity, four-slot intelligent charger designed for simultaneous management of multiple 3.7V/4.2V Li-ion rechargeable batteries. Featuring a modern USB Type-C input, this unit offers four independent charging channels, providing maximum efficiency and safety for users with high-volume power requirements.
This quad-slot charger is the definitive power solution for professional equipment, large flashlight collections, and high-drain portable electronics.
Four-Slot Independent Management: Each of the four bays operates on an independent circuit, allowing you to mix and match batteries of various sizes, capacities, and charge levels simultaneously.
Universal Size Compatibility: The durable spring-loaded tension bars accommodate a vast array of Li-ion cells, including 18650, 10440, 14500, 16340, 16650, 14650, 18350, and 18500.
Modern USB Type-C Interface: Equipped with a Type-C input port for universal compatibility with modern high-speed wall chargers, power banks, and workstation USB ports.
Advanced Safety Circuitry: Integrated Battery Reverse Protection ensures the charger and batteries remain safe by automatically cutting power if a cell is inserted with inverted polarity.
Individual LED Status Indicators: Four dedicated LED displays provide real-time visual tracking of the charging progress for every individual battery bay.
Model: BS-18650-4.
Input Port: USB Type-C.
Output Voltage: 4.2V.
Charging Current: 1A Total.
Battery Chemistry: Lithium-ion (Li-ion).
Charging Slots: 4 Independent Slots.
Included Accessories: USB-A to USB Type-C charging cable.
Heavy-Duty Tactical Gear: Simultaneously charge full sets of 18650 batteries for high-lumen searchlights and outdoor equipment.
Professional Photography & Video: Keep multiple backup cells ready for camera gimbals, portable LED panels, and wireless monitors.
RC Hobbies & DIY Projects: Ideal for hobbyists who frequently use various Li-ion sizes for remote-controlled vehicles and custom electronics.
Household Power Hub: A centralized charging station for all family Li-ion-powered devices, from portable fans to electric toothbrushes.
Can I charge four different types of batteries at the same time? Yes. Since each slot is controlled by its own independent smart circuit, you can safely charge an 18650, a 14500, and a 16340 battery all at once without affecting the charge quality of any individual cell.
How long does it take to charge four batteries? Charging time depends on the capacity (mAh) of your batteries and the power source used. For the best experience with four batteries, it is recommended to connect the USB Type-C cable to a high-output 2.1A wall adapter.
Will it overcharge my batteries if I leave them in overnight? The smart circuitry is designed to manage the voltage precisely, stopping the flow once each battery reaches its peak 4.2V charge. The LED indicators will notify you once each individual slot has completed its cycle.
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