1-Slot Type-C Lithium Battery Charger (16340/14500/18650 Cells)

1-Slot Type-C Lithium Battery Charger Overview

The 1-Slot Type-C Lithium Battery Charger is a compact, reliable charging solution for individual cylindrical lithium-ion cells. Designed for hobbyists, DIY electronics builders, flashlight users, and everyday gadget owners, this charger supports 16340, 14500, and 18650 cells and delivers smart, safe charging through a USB Type-C input.

Why this Type-C lithium battery charger stands out

• Ultra-portable single-slot design for convenient on-the-go charging
• USB Type-C input for wide compatibility with modern power sources
• Intelligent charging management that auto-adjusts current to the battery type

Key Features

• Supported cells: 16340, 14500, and 18650 lithium-ion rechargeable batteries
• Single-slot charger – charges one battery at a time
• Independent charging system automatically adjusts current for safe charging (0.5A to 1A)
• USB Type-C input for universal and durable connectivity
• LED indicator light: Red = Charging, Green = Fully Charged
• Spring-loaded contacts for a secure battery fit
• Durable ABS housing that is lightweight and portable

Safety Protections

This charger includes multiple safety layers to protect both the user and the battery during charging:

• Overcharge protection – stops charging when the battery is full
• Over-discharge recovery – helps revive deeply discharged cells
• Short-circuit protection – prevents accidental damage
• Overheat protection – maintains safe charging temperature
• Reverse polarity protection – prevents damage if the battery is inserted incorrectly

Specifications

• Input voltage: 5V DC via USB Type-C
• Charging output: approximately 4.2V regulated
• Charging current: 0.5A to 1A (auto-adjusts)
• Supported cells: 16340, 14500, 18650 Li-ion
• Slot count: 1 (independent)
• LED status indicator: Red = Charging | Green = Full
• Body material: ABS plastic

Applications

Ideal for a wide range of devices and projects, including:

• Flashlights and LED torches
• DIY electronics and robotics projects
• RC cars, drones, and battery-powered toys
• Portable fans and small gadgets
• Power banks and battery packs
• Everyday rechargeable battery devices

How to Use

1. Connect a USB Type-C cable to a 5V DC power source such as a wall adapter, laptop, or power bank.
2. Insert the rechargeable cell into the slot with correct polarity; spring-loaded contacts will secure the battery.
3. Observe the LED: Red indicates charging, Green indicates fully charged. The charger will stop charging automatically when complete.
4. Remove the battery and disconnect the charger from the power source.

Why Choose This 1-Slot Charger

• Compact and lightweight for travel and field use
• Simple plug-and-charge operation for beginners and pros
• Universal compatibility with the most common Li-ion sizes
• Enhanced safety with smart protection circuits for reliable charging
• Cost-effective single-battery solution for users who only need occasional charging

Compatibility and Notes

This charger is compatible with the most common cylindrical Li-ion rechargeable cells listed above. It is not intended for non-rechargeable batteries or other chemistries. Always follow battery manufacturer guidelines and inspect cells for damage before charging.

Note

Images are for illustration purposes only.