Product Description
This bundle combines the flagship XTAR VC8 8-slot professional-grade 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 VC8 charger offers eight independent charging circuits, dual high-definition VA LCD screens, and a powerful 3A fast charging mode. It goes far beyond basic charging with professional features: Capacity Grading (charge-discharge-charge to test true mAh), Internal Resistance (IR) testing, and an intelligent Storage mode to maintain optimal 3.7V long-term voltage. This kit provides the ultimate professional power management and battery health diagnostic solution for heavy-duty users and enthusiasts.
Key Features
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Complete Professional Power Kit: Includes one XTAR VC8 8-slot smart 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 Battery Specifications: Features 3500mAh true capacity, a 3.6V nominal voltage, a 4.2V charging cut-off, and a 10A max continuous discharge. Built-in protection PCB prevents overcharge and short circuits. Ultra-low internal resistance (≤45 mΩ) and supports over 800 charge cycles for long-lasting performance.
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8 Fully Independent Charging Slots: Each slot features independent circuit control, allowing you to charge any combination of batteries without mutual interference. Supports both Li-ion and Ni-MH/Ni-CD batteries simultaneously.
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3A Ultra-Fast Charging: Equipped with a QC3.0 Type-C input (5V/9V), providing a maximum 3A charging current when a single battery is placed in slot CH1 or CH8, drastically reducing downtime.
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Dual VA LCD Screens & Advanced Diagnostics: High-contrast dual screens display real-time voltage, current, capacity (mAh), and internal resistance (mΩ). The Capacity Grading mode (supported in CH1-CH4) runs a full cycle to reveal true battery health, while the IR test effectively filters out aged or degraded cells.
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Intelligent Storage Mode & 0V Activation: Automatically charges or discharges batteries to the optimal long-term storage voltage of 3.7V for Li-ion batteries to prevent capacity loss. The 0V activation feature safely revives over-discharged batteries.
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Adjustable Charging Currents: Offers four manual current gears: 250mA, 500mA (8 slots), 1000mA (4 slots), and 2000mA (Slots CH1/CH8), allowing users to select the ideal speed for batteries of different capacities.
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Comprehensive Safety Protections: Built-in over-voltage, over-current, short-circuit, reverse polarity, and over-charge protection, paired with an intelligent temperature control system for safe, stable, long-term usage.
Product Parameters
Charger (XTAR VC8):
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Model: XTAR VC8
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Input Power: QC3.0 Type-C (5V⎓2A / 9V⎓2A)
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Adjustable Charging Current: 3A x 1 / 2A x 2 / 1A x 4 / 0.5A x 8 / 0.25A x 8
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Charging Cut-off Voltage: 4.20 ± 0.05V (Li-ion) / 1.45 ± 0.1V (Ni-MH)
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Charging Cut-off Current: ≤120mA
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Operating Temperature: 0 - 40°C
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Dimensions: L194mm x W134mm x H34mm
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Net Weight: 350g
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Supported Li-ion Sizes: 10440, 14500, 14650, 16340, 17500, 17670, 18350, 18490, 18500, 18650, 18700, 20700, 21700, 22650, 25500, 26650 (Supports protected 20700 & 21700)
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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Professional capacity grading, testing, and health diagnostics for high-drain 18650 batteries used in tactical flashlights and EDC gear.
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Advanced battery testing, sorting, and long-term storage preparation for RC drones and model aircraft enthusiasts.
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An all-in-one testing station for DIY power bank builders to screen and match 18650 cells.
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Professional energy management for outdoor survival kits and emergency backup power systems.
Frequently Asked Questions (FAQ)
Q1: What is included in this bundle?
A1: The bundle includes one XTAR VC8 8-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: How do I achieve the maximum 3A fast charging speed with the VC8?
A2: To achieve the maximum 3A fast charging speed, you must use a QC3.0 (9V/2A) power adapter and charge a single battery exclusively in slot CH1 or CH8. The charger will automatically detect the input and output 3A.
Q3: How does the "Capacity Grading" mode work for this 18650 battery?
A3: Capacity Grading mode (supported in CH1 to CH4) runs a complete charge-discharge-charge cycle on the battery. This accurately measures the true mAh capacity of the 3500mAh cell, allowing you to easily identify if it has aged or if it's a counterfeit cell.
Q4: What is the purpose of the "Storage Mode"?
A4: If you do not plan to use this 3.6V 18650 battery for an extended period, the Storage Mode will automatically charge or discharge it to the optimal long-term storage voltage of 3.7V. This significantly slows down capacity degradation and maximizes the battery's overall lifespan.
Q5: Can I charge Ni-MH batteries alongside this Li-ion battery in the VC8?
A5: Yes. The XTAR VC8 features 8 completely independent charging circuits. You can safely place a 3.6V Li-ion battery in one slot and a 1.2V Ni-MH battery in any other slot simultaneously without interference.
