SC2 Dual-Slot 3A Fast Li-ion Battery Charger
SC2 Dual-Slot 3A Fast Li-ion Battery Charger with QC3.0 Protocol and 0V Activation for 18650 21700 Batteries
Product Overview
Powerful 3A fast charger for 18650, 20700, 21700, 22650, 26650 Li-ion batteries (including protected types). Features QC3.0 support, 2A×2 / 3A×1 adaptive charging, 0V activation, and TC-CC-CV three-stage protection. Compact, travel-friendly design with smart Type-C port and LED indicators. Globally certified with worldwide insurance. Ideal for home, travel, and professional use.
Key Features
- Fast Charging: Supports up to 3A fast charging for quick battery recovery
- Compact Design: Extreme compact size fits easily into pockets or bags
- Compatibility: Charges protected 20700/21700 batteries for versatility
- Intelligent Charging: QC3.0 protocol ensures efficient power delivery
- LED Indicator: Easy-to-read LED light shows charging status
Technical Specifications
| Model |
SC2 |
| Input |
QC3.0 (9V=2A/5V=2A) |
| Constant Current |
2Ax2 / 3Ax1 Max |
| End of Charge Voltage |
4.2±0.05V |
| End of Charge Current |
≤150mA |
| Operating Temperature |
0-40°C |
| Size |
L105mm x W53mm x H27mm |
| Net Weight |
60g |
Battery Compatibility
![SC2 Charger battery compatibility chart showing supported battery types]()
About XTAR
Established in 2006, XTAR is a leading provider of high-quality lithium-ion batteries, smart chargers, and LED flashlights. Based in Shenzhen, we integrate R&D, production, and sales to deliver innovative power solutions. With over 20 years of expertise, XTAR is your trusted partner for reliable energy products, offering customized solutions for OEM and wholesale clients.
Company Timeline
2005
Launched PK flashlight, laying groundwork for battery and charging expertise
2009
Developed WP6 (6-slot charger) for diving flashlights, pioneering three-stage charging technology
2011
WP2II - First charger with 0V activation + USB output, reviving over-discharged lithium-ion batteries
2012
First charger with selectable charging current (0.5C) to extend battery lifespan
2014
VP2 - Market's first charger compatible with all lithium-ion battery voltages
2016
DRAGON VP4 Plus - First charger to precisely measure battery capacity & internal resistance
2019
Integrated charger with charging, capacity calibration, storage (3A fast charge per slot, auto/manual current adjustment)
2020
BC4 - First universal charger for AA/AAA 1.5V lithium & 1.2V NiMH batteries
2023
Pioneered CVSA (Curve-based Voltage Sensing) tech for more precise, safer NiMH battery charging
2024
VX4 - First charger for 1.5V lithium batteries, supporting 4 battery types with 4 intelligent charging protocols
Manufacturing
We operate our own factory with efficient production processes ensuring precise production cycles. Manufacturing under our original brand guarantees product consistency and provides convenient maintenance and after-sales service. XTAR integrates the brand values of safety, reliability, and innovation into every product.
![XTAR manufacturing facility and production process]()
Frequently Asked Questions
Can I have a sample order for Battery/Charger?
Yes, we welcome sample order to test and check quality. Mixed samples are acceptable.
What about the lead time?
Sample needs 1-2 days, mass production time needs 3-7 working days.
How do you ship the goods and how long does it take to arrive?
DHL, UPS, FedEx or TNT and others shipping method is available. Arriving time depends on the way you choose. Airline and sea shipping also optional. Warehouse in Texas, shipment is free in US.
Is it OK to print my logo on the product?
Yes. We have our own R&D Department and Factory. Both OEM and ODM are acceptable.
What industries do you provide supporting equipment for?
We can provide professional supporting services for many industries, such as electric toothbrushes, thermal imagers, infrared devices, thermal imaging scope, flashlights, toy cars, smart locks, and so on.
Where do you ship from?
We can ship from Shenzhen, China, and we also have overseas warehouses in the U.S., so we can also ship directly from the U.S.
