{"product_id":"18650-21700-battery-chargerlcd-intelligent-18650-battery-charger-for-20700-26650-16340-rcr123-ni-mh-ni-cd-a-aa-aaa-rechargeable-batteriesrechargeable-battery","title":"XTAR VC4 4-Bay Smart Battery Charger | LCD Gauge Display for 3.6V\/3.7V Li-ion 18650 21700 \u0026 1.2V Ni-MH AA AAA Batteries","description":"\u003ch2\u003e\u003cspan class=\"\"\u003eProduct Description\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eThe XTAR VC4 is a versatile and reliable 4-slot smart battery charger designed for both lithium-ion and nickel-metal hydride batteries. Featuring an innovative LCD gauge-style screen, it provides real-time, precise monitoring of charging status, battery voltage, charging current, and capacity. The charger supports independent four-slot charging, allowing you to mix Li-ion and Ni-MH batteries simultaneously. Equipped with XTAR's original 0V activation technology, it can revive over-discharged batteries. With robust safety protections like reverse polarity detection and automatic shut-off upon full charge, the VC4 offers a worry-free charging experience for your daily electronic devices.\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=\"\"\u003eInnovative LCD Gauge Screen: Displays key real-time data including battery voltage, charging current gear, battery capacity (mAh), slot number, and battery type at a glance.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eIntelligent 0V Activation: XTAR's original 0V activation feature safely revives batteries that have been over-discharged to low voltage, restoring them to a usable state.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eIndependent Four-Slot Design: Each slot operates independently, supporting mixed charging of 3.6V\/3.7V Li-ion and 1.2V Ni-MH\/Ni-CD batteries without interference.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eClear Safety Warnings \u0026amp; Auto Stop: The LCD screen clearly displays intuitive warnings: \"Full\" when fully charged, \"null\" if the battery is damaged, and \"Err\" if the battery is reversed. Charging automatically stops when fully charged.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eExtensive Battery Compatibility: Supports 3.6V\/3.7V Li-ion batteries (10440 to 32650) and 1.2V Ni-MH\/Ni-CD batteries (AAAA to D size). Note: It does not support protected 20700 and 21700 batteries.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eComfortable User Experience: Features a simple one-button operation to view charging status. Long press the button for 1.5 seconds to turn off the screen backlight for low-light environments.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eThree-Stage Charging Algorithm: Utilizes a lifespan-optimized charging process (Trickle-CC-CV) for Li-ion batteries and a smart pulse charging process for Ni-MH batteries to ensure efficient and safe charging.\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\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eProduct Model: XTAR VC4\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eInput Power: DC 5.0V 2.1A (USB power supply)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eCharging Current Options: 0.5A (500±50mA) \/ 1.0A (1000±80mA)\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: 4.20V ± 0.05V (Li-ion) \/ 1.45V ± 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=\"\"\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: L149 x W115 x H35 mm\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eNet Weight: 210g\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eSupported Battery Types: 3.6V \/ 3.7V Li-ion (IMR\/INR\/ICR), 1.2V Ni-MH \/ Ni-CD\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, 17335, 17500, 17670, 18350, 18490, 18500, 18650, 18700, 20700, 21700, 22650, 25500, 26650, 32650\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eSupported Ni-MH\/Ni-CD Sizes: AAAA, AAA, AA, A, SC, C, D\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cem\u003e\u003cspan class=\"\"\u003eImportant Note: Cannot charge protected 20700 and 21700 batteries.\u003c\/span\u003e\u003c\/em\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=\"\"\u003eDaily charging and maintenance of 3.6V\/3.7V 18650 batteries for EDC flashlights and headlamps.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eSafe power replenishment for standard AA and AAA Ni-MH batteries used in remote controls, wireless mice, and digital cameras.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eMixed battery charging for hobbyists managing both Lithium and Ni-MH power sources.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eReviving and testing old or over-discharged batteries for emergency kits and outdoor gear.\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 the maximum charging current of the XTAR VC4 charger?\u003c\/span\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA1: The XTAR VC4 offers two selectable charging current options: 0.5A (500mA) and 1.0A (1000mA). It supports up to 1A per slot when charging four batteries simultaneously.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eQ2: What do the error messages on the LCD screen mean?\u003c\/span\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA2: The VC4 provides clear safety feedback via the LCD screen. \"Full\" means the battery is completely charged; \"null\" indicates the battery is damaged or cannot hold a charge; \"Err\" indicates you have inserted the battery with reversed polarity, which triggers automatic protection to stop charging immediately.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eQ3: Can I charge a Li-ion battery and a Ni-MH battery at the same time?\u003c\/span\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA3: Yes. The VC4 features a completely independent 4-slot design. You can safely mix Li-ion batteries and Ni-MH\/Ni-CD batteries in any slot without impacting charging performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eQ4: Does the VC4 support charging protected 21700 batteries?\u003c\/span\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA4: No. According to the manufacturer's design, the XTAR VC4 does not support protected 20700 and 21700 batteries. Please be sure to check your battery specifications before use.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eQ5: How does the 0V activation function work?\u003c\/span\u003e\n\u003cbr\u003e\u003cspan class=\"\"\u003eA5: If your lithium battery has been over-discharged to an extremely low voltage (near 0V) and cannot be charged by standard chargers, the VC4's 0V activation feature will attempt to apply a safe, low current to revive and reactivate the battery's internal protection circuit, often restoring it to a usable state.\u003c\/span\u003e\u003c\/p\u003e","brand":"XTAR","offers":[{"title":"Default Title","offer_id":51454131372278,"sku":"OAS249","price":26.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/2753\/6886\/files\/xtar-vc4-lcd-universal-charger-main_441b842e-7ccf-4b6c-8c85-d9db977de4b2.webp?v=1786965444","url":"https:\/\/oneandes.com\/products\/18650-21700-battery-chargerlcd-intelligent-18650-battery-charger-for-20700-26650-16340-rcr123-ni-mh-ni-cd-a-aa-aaa-rechargeable-batteriesrechargeable-battery","provider":"OneAndes","version":"1.0","type":"link"}