{"product_id":"xtar-rechargeable3-7v-3500mah-button-top-battery-with-3a-charger-18650-batteries-for-headlamps-flashlight-camera-small-fan-outdoor-garden-lights","title":"XTAR VC8 8-Bay Smart Charger with 18650 3500mAh 10A Battery Bundle | Professional 3A Fast Charging \u0026 Battery Capacity Tester Kit","description":"\u003ch2\u003e\u003cspan class=\"\"\u003eProduct Description\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eThis 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.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan class=\"\"\u003eKey Features\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eComplete 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.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eHigh-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.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003e8 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.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003e3A 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.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eDual VA LCD Screens \u0026amp; 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.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eIntelligent Storage Mode \u0026amp; 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.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eAdjustable 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.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eComprehensive 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.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan class=\"\"\u003eProduct Parameters\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eCharger (XTAR VC8):\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eModel: XTAR VC8\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eInput Power: QC3.0 Type-C (5V⎓2A \/ 9V⎓2A)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eAdjustable Charging Current: 3A x 1 \/ 2A x 2 \/ 1A x 4 \/ 0.5A x 8 \/ 0.25A x 8\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eCharging Cut-off Voltage: 4.20 ± 0.05V (Li-ion) \/ 1.45 ± 0.1V (Ni-MH)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eCharging Cut-off Current: ≤120mA\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eOperating Temperature: 0 - 40°C\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eDimensions: L194mm x W134mm x H34mm\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eNet Weight: 350g\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eSupported Li-ion Sizes: 10440, 14500, 14650, 16340, 17500, 17670, 18350, 18490, 18500, 18650, 18700, 20700, 21700, 22650, 25500, 26650 (Supports protected 20700 \u0026amp; 21700)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eBattery (XTAR 18650 3500mAh):\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eBrand: XTAR\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eModel: 18650 Rechargeable Li-ion Battery\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eNominal Capacity: 3500mAh\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eNominal Voltage: 3.6V\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eDischarge Cut-off Voltage: 2.5V\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eMax Continuous Discharge Current: 10A\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eInternal Resistance: ≤45 mΩ\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eCycle Life: 800+ cycles\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eProtection Board: Built-in (Protected)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003ePositive Terminal: Button Top\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eDimensions: Φ18.4±0.3 x H69±0.5 mm\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan class=\"\"\u003eApplications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eProfessional capacity grading, testing, and health diagnostics for high-drain 18650 batteries used in tactical flashlights and EDC gear.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan style=\"background-color: transparent; color: inherit; font-size: inherit; letter-spacing: inherit; text-decoration-line: underline;\"\u003eAdvanced battery testing, sorting, and long-term storage preparation for RC drones and model aircraft enthusiasts.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eAn all-in-one testing station for DIY power bank builders to screen and match 18650 cells.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eProfessional energy management for outdoor survival kits and emergency backup power systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan class=\"\"\u003eFrequently Asked Questions (FAQ)\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eQ1: What is included in this bundle?\u003c\/span\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA1: 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.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eQ2: How do I achieve the maximum 3A fast charging speed with the VC8?\u003c\/span\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA2: 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.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eQ3: How does the \"Capacity Grading\" mode work for this 18650 battery?\u003c\/span\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA3: 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.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eQ4: What is the purpose of the \"Storage Mode\"?\u003c\/span\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA4: 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.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eQ5: Can I charge Ni-MH batteries alongside this Li-ion battery in the VC8?\u003c\/span\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA5: 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.\u003c\/span\u003e\u003c\/p\u003e","brand":"XTAR","offers":[{"title":"1 Pack Button Top 18650 Battery+Charger","offer_id":51454135894262,"sku":"OAS290","price":82.98,"currency_code":"USD","in_stock":true},{"title":"2 Packs Button Top 18650 Battery+Charger","offer_id":51454135927030,"sku":"OAS291","price":97.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/2753\/6886\/files\/xtar-3a-charger-3500mah-18650-bundle-main-1_9fdf5da5-934e-4c01-960c-ab90c3863651.webp?v=1786965542","url":"https:\/\/oneandes.com\/products\/xtar-rechargeable3-7v-3500mah-button-top-battery-with-3a-charger-18650-batteries-for-headlamps-flashlight-camera-small-fan-outdoor-garden-lights","provider":"OneAndes","version":"1.0","type":"link"}