Product Description
This bundle combines the versatile XTAR VC4 4-slot smart charger with high-performance XTAR 18650 3500mAh 10A lithium-ion rechargeable batteries. (Available in 1-Pack or 2-Pack options). The included 18650 battery delivers 3500mAh true capacity, a 3.6V nominal voltage, a robust 10A maximum continuous discharge current, a built-in protection board, and a button-top terminal. The XTAR VC4 charger features an innovative LCD gauge-style screen, original 0V activation to revive over-discharged cells, independent four-slot mixed charging, and comprehensive safety alerts. This kit offers a complete, safe, and practical power management solution for your daily high-drain electronic devices.
Key Features
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Complete Power Kit: Includes one XTAR VC4 4-slot smart charger (with cable and pouch) and one or two XTAR 18650 3500mAh 10A protected button-top batteries based on your selection.
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High-Performance Battery Specs: Features 3500mAh true capacity, 3.6V nominal voltage, 2.5V discharge cut-off, and 10A max continuous discharge. Built-in protection board prevents overcharge, over-discharge, and short circuits.
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Innovative LCD Gauge Screen: The VC4 charger displays real-time battery voltage, charging current, capacity (mAh), and slot information, making the charging status highly intuitive.
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Original 0V Activation Technology: Safely revives over-discharged lithium batteries that have dropped to extremely low voltage, restoring them to a usable state.
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Independent 4-Slot Mixed Charging: Each slot operates independently, allowing you to simultaneously charge 3.6V/3.7V Li-ion and 1.2V Ni-MH/Ni-CD batteries without interference.
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Smart Safety Warnings & Auto Stop: The screen clearly displays "Full" (fully charged), "null" (damaged battery), or "Err" (reverse polarity). The charger automatically stops charging when the battery is full.
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Efficient Charging Algorithm: Uses a lifespan-optimized three-stage charging process (Trickle-CC-CV) for Li-ion batteries to ensure healthy and safe charging.
Product Parameters
Charger (XTAR VC4):
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Input Power: DC 5.0V 2.1A (USB power supply)
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Charging Current Options: 0.5A (500±50mA) / 1.0A (1000±80mA)
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Charging Cut-off Voltage: 4.20V ± 0.05V (Li-ion) / 1.45V ± 0.1V (Ni-MH)
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Operating Temperature: 0 - 40°C
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Dimensions: L149 x W115 x H35 mm
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Net Weight: 210g
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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 Li-ion Sizes: 10440, 14500, 14650, 16340, 17335, 17500, 17670, 18350, 18490, 18500, 18650, 18700, 20700, 21700, 22650, 25500, 26650, 32650
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Supported Ni-MH/Ni-CD Sizes: AAAA, AAA, AA, A, SC, C, D
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Important Note: This charger is compatible with standard protected 18650 batteries like the ones included, but it does not support protected 20700 or 21700 batteries.
Battery (XTAR 18650 3500mAh):
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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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Storage Temperature: -20°C~60°C (Best storage ≤25°C)
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Dimensions: Φ18.4±0.3 x H69±0.5 mm
Applications
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Reliable power supply and charging for high-performance EDC tactical flashlights and headlamps.
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Daily charging and battery health maintenance for remote control toys and drones.
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Convenient power management for standard devices using AA/AAA Ni-MH batteries alongside 18650 cells.
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Emergency backup power solutions for portable radios and outdoor survival gear.
Frequently Asked Questions (FAQ)
Q1: What is included in this bundle?
A1: The bundle includes one XTAR VC4 4-slot charger, one USB charging cable, one storage pouch, a user manual, and either 1 or 2 units of the XTAR 18650 3500mAh 10A protected button-top batteries based on your variant selection.
Q2: What is the maximum charging current of the VC4 charger?
A2: The XTAR VC4 offers two adjustable charging currents: 0.5A and 1.0A. It supports up to a 1.0A charging current per slot when charging four batteries simultaneously.
Q3: Can I charge Li-ion and Ni-MH batteries at the same time?
A3: Yes. The VC4 features independent 4-slot circuitry, allowing you to safely mix 3.6V/3.7V Li-ion batteries and 1.2V Ni-MH batteries in different slots.
Q4: How does the "0V Activation" feature work on the charger?
A4: If your lithium battery has been over-discharged to an extremely low voltage (near 0V), the VC4 will apply a safe, low current to gently reactivate the battery's protection circuit, often successfully restoring it to a chargeable and usable state.
Q5: How do I know when the battery is fully charged?
A5: When the battery is fully charged, the LCD screen will clearly display the word "Full". The charger will automatically stop the charging current to ensure safety and prevent overcharging.
