{"product_id":"xtar-dragon-vp4l-plus-battery-charger-tester","title":"XTAR DRAGON VP4L Plus 4-Slot Smart Battery Charger \u0026 Tester - LCD Display with Internal Resistance Test, 11.1V 3S Battery Pack Charging \u0026 Capacity Testing for Li-ion, IMR, NiMH \u0026 NiCd (Complete Pro Kit)","description":"\u003ch3\u003e\u003cspan class=\"\"\u003e【Product Description】\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eMeet the “Personal Doctor” for your batteries.\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eXTAR DRAGON VP4L Plus 4-Slot Smart Battery Charger \u0026amp; Tester\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eis a professional-grade powerhouse that transcends ordinary charging. It combines a\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003ehigh-definition LCD display, precision internal resistance testing, capacity grading, and advanced battery pack charging\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003einto one sophisticated unit, making it the ultimate tool for enthusiasts, RC hobbyists, and professional technicians.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eEquipped with a pair of\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eprecision test probes\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e, the VP4L Plus works like a digital multimeter, allowing you to instantly test the\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003einternal resistance (mΩ) and voltage\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eof any cylindrical Li-ion, IMR, NiMH, or NiCd battery. A lower internal resistance means healthier, higher-discharge capacity. It also features a\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eTEST mode\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003e(Charge → Discharge → Charge) that accurately grades your battery's true capacity, and a\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eREFRESH mode\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003edesigned to eliminate NiMH\/NiCd memory effects.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan class=\"\"\u003eBeyond single cells, the DRAGON VP4L Plus uniquely supports\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003e11.1V 3S battery packs\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003evia a built-in 4-Pin socket, making it an indispensable tool for drones, RC vehicles, and DIY power tools. It supports charging 0V activation, auto-stop at full charge, and up to\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003e2.0A charging current\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eper slot.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003e Complete Pro Kit Included:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eCharger, User Manual, 3A Car Adapter, Precision Test Probes, 12V\/3A Power Adapter, and a Premium Storage Bag. Everything you need for professional battery maintenance, right out of the box!\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan class=\"\"\u003e【Key Features】\u003c\/span\u003e\u003c\/h3\u003e\n\u003col start=\"1\"\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eBuilt-In Internal Resistance Tester (Multimeter Function)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e: Comes with precision test probes. Test the real resistance (mΩ) and voltage of batteries to instantly assess battery health and performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003e11.1V 3S Battery Pack Charging\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e: Featuring a dedicated 4-Pin balancing port, this charger can safely and evenly charge 3S battery packs (standard 1A charging current), perfect for RC vehicles and DIY electronics.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eProfessional LCD Display \u0026amp; Record Function\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e: High-definition screen shows real-time current, voltage, capacity percentage, and battery type. The Record function stores up to 64 test results for easy comparison.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eTEST Mode (Capacity Grading)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e: Automatically runs a Charge → Discharge → Charge cycle to measure accurate real capacity (mAh), helping you identify fake, old, or degraded cells.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eREFRESH Mode (Battery Revival)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e: Uses discharge-charge cycling to effectively eliminate the memory effect in NiMH\/NiCd batteries, restoring their full usable capacity and extending their lifespan.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003e0V Activation \u0026amp; Adjustable Current\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e: Automatically revives over-discharged (0V) batteries. Choose from\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003e0.5A \/ 1.0A \/ 2.0A\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003ecurrents to suit different battery sizes.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eComplete Pro Kit\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e: Includes a 12V\/3A AC adapter, 3A car charger, precision probes, and a premium carrying bag, ready for use at home or on the road.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eComprehensive Safety Protection\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e: Intelligent temperature control, 20-hour auto shut-off, reverse polarity protection, and precise cut-off to prevent overcharging.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003e\u003cspan class=\"\"\u003e【Parameters \u0026amp; Specifications】\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eBrand\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e: XTAR\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eModel\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e: DRAGON VP4L Plus\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eInput\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e: DC 12V 3A (Power Adapter or Car Adapter included)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eAdjustable Current (Constant)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003e: 0.5A (500±50mA) \/ 1.0A (1000±80mA) \/ 2.0A (2000±120mA)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eCharge Cut-off Voltage\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e: 4.20V ±0.05V \/ 1.45V ±0.1V\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eActivation Current\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e: 100mA\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eTrickle Charging Current\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e: 50±10mA \/ 100±20mA \/ 200±20mA\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eAuto Recharge Voltage\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e: 3.90V ±0.15V\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003e0V Activation Range\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e: 0.2-0V\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eOperating Temp\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e: 0℃ ~ 40℃\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eDimensions\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e: 158mm × 147mm × 40mm\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eWeight\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e: 365g (Without batteries \u0026amp; adapter)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eCompatible Chemistries\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e: 3.6V\/3.7V Li-ion (IMR\/INR\/ICR), 1.2V NiMH\/NiCd, 11.1V 3S Battery Packs\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eCompatible Sizes\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e: 10440, 14500, 14650, 16340, 17335, 17500, 17670, 18350, 18490, 18500, 18650, 18700, 20700 (with\/without protection), 21700, 22650, 25500, 26650, 32650, plus AAAA\/AAA\/AA\/A\/SC\/C\/D NiMH\/NiCd.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003ePackage Content\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e: Charger, User Manual, 3A Car Adapter, Test Probes, 12V\/3A Adapter, Storage Bag.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan class=\"\"\u003e【Applications】\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eRC Hobbyists\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e: Charging and balancing 3S LiPo\/Li-ion packs for drones and RC cars.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eBattery Enthusiasts \u0026amp; Testers\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e: Measuring internal resistance to grade 18650\/21700 cells for custom battery packs.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eTechnicians \u0026amp; Repair Shops\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e: Quickly testing the health of rechargeable batteries for flashlights, vape mods, and power tools.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eHousehold Maintenance\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e: Reviving and refreshing old NiMH AA\/AAA batteries in remote controls and emergency lights.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan class=\"\"\u003e【Frequently Asked Questions (FAQ)】\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eQ1: What is the purpose of the test probes?\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan class=\"\"\u003eA1: The probes work like a digital multimeter. You can touch them to the positive and negative ends of a battery to instantly test its precise\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003einternal resistance (mΩ) and voltage\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e. This helps you determine if a battery is healthy, aging, or a poor-quality counterfeit.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eQ2: Can I use this charger to charge my RC car's 3S battery?\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan class=\"\"\u003eA2: Yes! The DRAGON VP4L Plus features a built-in 4-Pin balancing socket. It can safely charge a standard\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003e11.1V 3S battery pack\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003ewith a fixed 1A current, ensuring all three cells are balanced and fully charged.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eQ3: What does TEST mode do?\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan class=\"\"\u003eA3: It activates a precise “Charge → Discharge → Charge” cycle. By measuring the total discharge capacity, the charger tells you the\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003etrue mAh capacity\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eof your battery, allowing you to compare it to the label and see if you’ve been sold a fake or a degraded cell.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eQ4: Can it revive dead batteries?\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan class=\"\"\u003eA4: Yes. The charger features\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003e0V Activation\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003etechnology. If a battery has been over-discharged to 0V, the VP4L Plus will detect it and apply a small 100mA activation current to try and bring it back to life. If the battery has physical damage, it will alert you with a red indicator.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eQ5: What is the difference between TEST and REFRESH mode?\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan class=\"\"\u003eA5:\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eTEST\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eis mainly for Li-ion batteries to measure true capacity.\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong\u003e\u003cspan class=\"\"\u003eREFRESH\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eis designed for NiMH\/NiCd batteries to perform a deeper discharge-recharge cycle, which eliminates “memory effect” and restores their maximum usable capacity.\u003c\/span\u003e\u003c\/p\u003e","brand":"XTAR","offers":[{"title":"Default Title","offer_id":51496522481910,"sku":"OAS1370","price":148.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/2753\/6886\/files\/xtar-dragon-vp4l-plus-battery-charger-tester-main.webp?v=1787300678","url":"https:\/\/oneandes.com\/products\/xtar-dragon-vp4l-plus-battery-charger-tester","provider":"OneAndes","version":"1.0","type":"link"}