Product Description
This bundle combines the lightweight and portable XTAR MC4S 4-slot smart charger with high-performance XTAR 18650 3500mAh 10A protected lithium-ion rechargeable batteries. (Available in 1-Pack or 2-Pack options). The included 18650 battery delivers a massive 3500mAh true capacity, a 3.6V nominal voltage, and a robust 10A maximum continuous discharge current. It features a built-in protection board and button-top terminal for enhanced safety and broad device compatibility. The XTAR MC4S charger features four independent charging circuits, a universal Type-C input, smart battery type recognition, and 0V activation to revive over-discharged batteries. Weighing only 95g, this kit provides a highly portable, reliable, and powerful power solution for your high-drain electronics. (Note: MC4S is perfectly compatible with these standard 18650 protected cells; however, it does NOT support protected 20700 and 21700 batteries).
Key Features
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Complete High-Performance Power Kit: Includes one XTAR MC4S 4-slot charger (with USB cable) and one or two XTAR 18650 3500mAh 10A protected button-top batteries based on your selection.
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High-Capacity & High-Drain Battery Specs: Features 3500mAh true capacity, a 3.6V nominal voltage, a 2.5V discharge cut-off, and a 10A max continuous discharge. Built-in protection board and ultra-low internal resistance (≤45 mΩ) ensure safety and stable output. Supports 800+ recharge cycles for long-term reliability.
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4 Fully Independent Charging Slots: Each slot features independent circuit control, allowing you to safely mix charge Li-ion and Ni-MH/Ni-CD batteries without interference.
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Smart Battery Identification: Automatically recognizes battery types and applies the optimal charging strategy: TC-CC-CV (Trickle-CC-CV) for Li-ion batteries and precise 0ΔV / -ΔV detection for Ni-MH batteries.
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Intuitive LED Indicator Lights: Red light indicates charging or activation; Green light means fully charged, empty slot, or poor contact; Flashing red/green indicates reversed polarity (please correct immediately).
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0V Activation Technology: Built-in 0V activation feature safely revives and recovers over-discharged lithium batteries, breathing new life into dead cells.
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Type-C Input & Ultra-Portable Design: Modern Type-C port allows for easy power connection via wall adapters, laptops, or car chargers. The charger weighs just 95g and measures L100 x W97 x H26.5mm, making it perfect for travel and outdoor use.
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Comprehensive Safety Protections: Built-in overcurrent, overcharge, overvoltage, and short-circuit protections. Automatically stops charging when the battery is full.
Product Parameters
Charger (XTAR MC4S):
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Model: XTAR MC4S
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Input Power: DC 5V 2.1A (Type-C)
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Constant Charging Current: 1A x 2 / 0.5A x 4
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Charging Cut-off Voltage: 4.20 ± 0.05V (Li-ion)
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Charging Cut-off Current: ≤70mA
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Operating Temperature: 0 - 40°C
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Dimensions: L100 x W97 x H26.5 mm
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Net Weight: 95g
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Supported Battery Types: 3.6V / 3.7V Li-ion (IMR/INR/ICR), 1.2V Ni-MH / Ni-CD
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Supported Sizes: 10440, 14500, 14650, 16340, 17500, 17670, 18350, 18490, 18500, 18650, 18700, 20700, 21700, 22650, 25500, 26650 (Refer to physical slot limitations). Note: This charger does NOT support protected 20700 and 21700 batteries.
Battery (XTAR 18650 3500mAh):
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Brand: XTAR
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Model: 18650 Rechargeable Li-ion Battery
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Nominal Capacity: 3500mAh
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Nominal Voltage: 3.6V
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Discharge Cut-off Voltage: 2.5V
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Max Continuous Discharge Current: 10A
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Internal Resistance: ≤45 mΩ
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Cycle Life: 800+ cycles
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Protection Board: Built-in (Protected)
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Positive Terminal: Button Top
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Dimensions: Φ18.4±0.3 x H69±0.5 mm
Applications
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Reliable and powerful power supply for high-lumen EDC tactical flashlights and searchlights.
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Safe high-drain power source for 10A-rated electronic cigarettes and mods.
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Portable charging and maintenance solution for outdoor headlamps, camping gear, and survival kits.
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Efficient power management for RC drones, model aircraft, and hobby electronics.
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Convenient mixed charging for both 3.6V Li-ion and 1.2V Ni-MH household batteries.
Frequently Asked Questions (FAQ)
Q1: What is included in this bundle?
A1: The bundle includes one XTAR MC4S 4-slot smart charger, one USB-A to USB-C charging cable, one user manual, and either 1 or 2 units of the XTAR 18650 3500mAh 10A protected button-top batteries based on your selected variant.
Q2: Can this charger charge the protected 18650 batteries included in the kit?
A2: Yes. The XTAR MC4S perfectly accommodates standard protected 18650 batteries like the ones in this kit. However, it does NOT support protected 20700 and 21700 batteries, so please do not use those.
Q3: What does the flashing Red and Green LED lights mean?
A3: When the LED lights flash between red and green, it indicates the battery has been inserted with reversed polarity. Please immediately remove the battery and insert it in the correct orientation.
Q4: What is the maximum charging current of the MC4S?
A4: The MC4S supports a maximum charging current of 1A for 2 slots simultaneously, or 0.5A for all 4 slots simultaneously.
Q5: Can I charge a Li-ion and a Ni-MH battery at the same time?
A5: Yes. The MC4S features 4 completely independent charging circuits. You can safely charge a 3.6V Li-ion battery and a 1.2V Ni-MH battery in different slots simultaneously.
