Can I charge AA or AAA NiMH rechargeable batteries with this charger?

No, the CH2-PLUS is designed strictly for 3.6V and 3.7V Lithium-ion (Li-ion) batteries. Attempting to charge 1.2V NiMH batteries (like standard AA/AAA) will damage the batteries and pose a safety risk.

Does this charger support the larger 21700 and 26650 battery sizes?

Yes, the spring-loaded sliding contacts extend far enough to comfortably and securely fit large-capacity 21700 and 26650 lithium-ion cells.

What kind of power adapter do I need to use with this charger?

You should use a standard USB wall adapter capable of outputting at least DC 5V 2A to ensure both charging slots can operate at their maximum 1A speed simultaneously.

How do I know when my batteries are fully charged?

The LED indicator above each slot will glow Red while the battery is actively charging, and it will automatically turn Green when the battery is fully charged and the power is cut off.

Can I buy this 18650 battery charger today at your Hong Kong store?

Yes, the CH2-PLUS dual-slot charger is regularly stocked at our Sun Cheong Computer Co. Ltd. physical store in Sham Shui Po for immediate purchase and pickup.

CH2-PLUS Dual-Slot 18650/26650 Battery Charger

Name: CH2-PLUS Dual-Slot 18650/26650 Battery Charger | USB-C
Brand: Sun Cheong Computer Company Limited
SKU: 21PA000699
Price: 150.0 TWD
Availability: InStock
Rating: 5.0 (1 reviews)

Short Product Description

The CH2-PLUS Dual-Slot Li-ion Battery Charger is a smart, high-efficiency charging hub designed for a wide range of 3.6V/3.7V lithium-ion batteries, including popular 18650, 26650, and 21700 sizes. Featuring a modern USB-C input (5V 2A) and independent 1A charging channels, it ensures your flashlight, vape, and DIY project batteries are powered up safely and quickly. Equipped with a 6-point intelligent protection system to prevent overcharging, this compact charger is available in-stock at Sun Cheong Computer Co. Ltd. (新昌電腦有限公司) in Sham Shui Po for instant pickup.

Key Features

Dual Independent Slots: Charges two batteries simultaneously with a dedicated 1A output per channel for faster, more efficient charging.
Wide Compatibility: Adjustable sliders fit a massive range of 3.6V/3.7V Li-ion batteries, including 18650, 26650, 14500, and 21750.
Modern USB-C Input: Powered via a convenient USB-C port, making it compatible with modern wall chargers and power banks (50cm cable included).
6-Point Safety System: Built-in intelligent protections against overcharging, short-circuiting, over-current, over-voltage, over-power, and overheating.
Auto-Stop Technology: Automatically cuts off power when the battery is fully charged (indicated by a green LED), preventing battery degradation.

Full Product Description

Universal Li-ion Battery Compatibility

Stop buying separate chargers for every battery size you own. The CH2-PLUS features spring-loaded, adjustable sliding contacts that securely accommodate almost any 3.6V or 3.7V cylindrical lithium-ion battery. Whether you need to charge tiny 10440 batteries for your laser pointer, standard 18650 cells for your high-lumen flashlight, or massive 26650 and 21700 batteries for your custom power bank, this versatile dual-slot charger handles them all with ease.

Smart Independent Charging with USB-C

This charger utilizes a modern USB-C input port, allowing you to power it using your existing smartphone wall adapter, car charger, or portable power bank (DC 5V 2A required). The two charging channels operate completely independently, delivering a dedicated 1A of current to each slot. This means you can charge two completely different battery sizes simultaneously without them interfering with each other. The intuitive LED indicators glow red while charging and turn solid green the moment the battery reaches full capacity.

Pro Tip from Our Technicians

Always ensure you insert your lithium-ion batteries with the correct polarity (positive to positive, negative to negative). While the CH2-PLUS features built-in reverse polarity protection to prevent catastrophic failure, inserting a battery backward will simply prevent it from charging. Our Sham Shui Po battery specialists also recommend using a high-quality 5V 2A wall adapter; using an older 1A adapter will significantly slow down the charging process when both slots are occupied.

Technical Specifications

Model: CH2-PLUS
Product Type: Dual-Slot Li-ion Battery Charger
Input Power: DC 5V 2A (via USB-C port)
Output Current: 1A per channel (CH1: 1A, CH2: 1A)
Compatible Battery Chemistry: 3.6V / 3.7V Lithium-ion (Li-ion)
Compatible Battery Sizes: 10440, 14500, 14650, 16340 (RCR123), 17335, 17500, 17650, 17670, 18350, 18500, 18650, 18700, 20700, 21700, 21750, 22650, 25500, 26650
Dimensions: 12.2cm (L) x 5.8cm (W) x 3.0cm (H)
Package Includes: 1x CH2-PLUS Charger, 1x 50cm USB-C Charging Cable

Delivery Options

Local delivery within Hong Kong and in-store pickup.
Free shipping for orders of HK$400 or above; HK$35 shipping fee for orders below HK$400.
Shipped by SF Express, usually dispatched the same day for orders confirmed before 6:00 PM (Mon–Sat).
Estimated delivery time: 1–3 business days after dispatch (Hong Kong).
In-store pickup details (location and time) will be confirmed by email or phone message.
Delivery times are estimates and may be affected by weather or unforeseen circumstances.

FAQ Section

Can I charge AA or AAA NiMH rechargeable batteries with this charger?No, the CH2-PLUS is designed strictly for 3.6V and 3.7V Lithium-ion (Li-ion) batteries. Attempting to charge 1.2V NiMH batteries (like standard AA/AAA) will damage the batteries and pose a safety risk.
Does this charger support the larger 21700 and 26650 battery sizes?Yes, the spring-loaded sliding contacts extend far enough to comfortably and securely fit large-capacity 21700 and 26650 lithium-ion cells.
What kind of power adapter do I need to use with this charger?You should use a standard USB wall adapter capable of outputting at least DC 5V 2A to ensure both charging slots can operate at their maximum 1A speed simultaneously.
How do I know when my batteries are fully charged?The LED indicator above each slot will glow Red while the battery is actively charging, and it will automatically turn Green when the battery is fully charged and the power is cut off.
Can I buy this 18650 battery charger today at your Hong Kong store?Yes, the CH2-PLUS dual-slot charger is regularly stocked at our Sun Cheong Computer Co. Ltd. physical store in Sham Shui Po for immediate purchase and pickup.

Target Users / Applications

High-lumen tactical flashlight users who need to quickly recharge multiple 18650 or 26650 batteries for night shifts or camping trips.
DIY electronics hobbyists building custom 3.7V battery packs for robotics or portable power stations.
Vape enthusiasts requiring a safe, independent dual-slot charger for their high-drain 21700 lithium-ion cells.