Product Description
The XTAR SC2 is a highly efficient and ultra-compact 2-slot smart battery charger specifically designed for 3.6V/3.7V lithium-ion batteries. Powered by a QC3.0 Type-C input, it supports an impressive 3A maximum single-slot charging current, enabling you to fully charge a 3500mAh 18650 battery in just 1.5 hours—three times faster than standard 1A chargers. Featuring an intelligent power adaptation system, the SC2 automatically detects the input power source (5V/9V/12V) and adjusts the output current for optimal efficiency. With a clear LED indicator system and comprehensive safety protections, the XTAR SC2 delivers a fast, safe, and portable charging experience for your high-drain devices.
Key Features
-
Ultra-Fast 3A Charging: Delivers a blazing 3A charging current for a single battery, drastically reducing charging time. Supports dual-slot 2A charging when charging two batteries simultaneously.
-
QC3.0 Type-C Input: Equipped with a universal Type-C port supporting QC3.0 protocols (5V/3A, 9V/2A, 12V/1.5A), allowing you to power the charger via wall adapters, laptops, power banks, or USB outlets.
-
Intelligent Power Adaptation: Built-in smart chip automatically recognizes the current of your power source and matches the optimal charging current for safe and efficient use.
-
Clear LED Status Indicators: The intuitive LED lights indicate precise charging status: 1/2/3 lights flashing for 1A/2A/3A current; Rolling lights flashing for active charging; 4 lights solid for fully charged or standby; 4 lights flashing simultaneously for reverse polarity protection.
-
Extensive Battery Compatibility: Specifically designed to accommodate 3.6V/3.7V Li-ion batteries, including sizes 18650, 18700, 20700, 21700, 22650, and 26650. Important: Supports charging protected 20700 and 21700 batteries securely.
-
Comprehensive Safety Protection: Built-in short circuit protection, overcharge protection, reverse polarity protection, overcurrent protection, and overvoltage protection. Certified with CE, RoHS, and FCC standards, and insured by China Pacific Insurance.
-
Portable & Lightweight: With a compact body measuring 105mm x 53mm x 27mm and weighing just 58g, it is ideal for EDC and travel use.
Product Parameters
-
Model: XTAR SC2
-
Input Power: QC3.0 Type-C (5V⎓3A / 9V⎓2A / 12V⎓1.5A)
-
Constant Charging Current: 2A x 2 (Dual slot) / 3A x 1 (Single slot)
-
Charging Cut-off Voltage: 4.20 ± 0.05V
-
Charging Cut-off Current: ≤150mA
-
Operating Temperature: 0 - 40°C
-
Product Dimensions: 105mm (L) x 53mm (W) x 27mm (H)
-
Net Weight: 58g
-
Supported Battery Types: 3.6V / 3.7V Li-ion (IMR/INR/ICR)
-
Supported Sizes: 18650, 18700, 20700, 21700, 22650, 26650 (Supports protected 20700 & 21700)
Applications
-
Fast charging for high-drain EDC tactical flashlights and searchlights.
-
Reliable portable charging solution for outdoor headlamps and camping lanterns.
-
Power maintenance for remote control (RC) hobbies, drones, and model aircraft.
-
Compact emergency backup charger for power banks and DIY battery packs.
Frequently Asked Questions (FAQ)
Q1: What is included in the package?
A1: The package includes 1x XTAR SC2 Smart Charger, 1x Type-C Charging Cable, and 1x User Manual. (Batteries are sold separately).
Q2: Can the SC2 charge protected 21700 batteries?
A2: Yes. The XTAR SC2 features an extended slot design that comfortably accommodates protected 20700 and 21700 batteries, unlike many other compact chargers.
Q3: How do I achieve the 3A fast charging speed?
A3: To achieve the maximum 3A charging speed, use a single battery in one slot and ensure your power adapter supports QC3.0 (9V/2A or 12V/1.5A). The SC2 will automatically detect the input power and adjust to 3A.
Q4: What do the LED lights indicate?
A4: 1/2/3 blinking lights indicate the charging current is 1A/2A/3A. Rolling lights indicate the battery is charging. 4 solid lights mean it is fully charged. 4 flashing lights at once means the battery is inserted backwards (reverse polarity protection activated).
Q5: Is the SC2 safe to use overnight?
A5: Absolutely. The SC2 includes multiple safety protections including overcharge protection. Once the battery reaches the precise 4.20V cut-off voltage, charging will stop automatically to prevent overcharging.
