{"product_id":"usb-charger-tester-voltage-current-battery-capacity-detector","title":"USB Charger Tester – Voltage, Current \u0026 Battery Capacity Meter","description":"\n\u003ch2\u003eUSB Charger Tester – Multifunctional Voltage, Current \u0026amp; Battery Capacity Detector\u003c\/h2\u003e\n\u003cp\u003eKnow exactly what your USB charger or power bank is delivering. This compact \u003cstrong\u003eUSB Charger Tester\u003c\/strong\u003e gives you real-time readings of voltage, current, and battery capacity in one easy-to-read display — perfect for tech enthusiasts, DIYers, and anyone who wants to verify their charging setup is performing as expected.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMultifunctional Measurement:\u003c\/strong\u003e Monitors voltage, current, and battery\/power bank capacity simultaneously.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Operating Range:\u003c\/strong\u003e Input\/output voltage range of 3V–9V; reliable across operating temperatures from -40°C to +85°C.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Portable:\u003c\/strong\u003e Plugs directly into any USB port — no extra cables or adapters needed.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInstant Readings:\u003c\/strong\u003e Real-time digital display for quick and accurate diagnostics of USB chargers, power banks, and mobile devices.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComputer Compatible:\u003c\/strong\u003e Works with computers, laptops, car chargers, wall adapters, and more.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo High-Concern Chemicals:\u003c\/strong\u003e Contains no high-concern chemical substances for safer everyday use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupply Voltage:\u003c\/strong\u003e Input\/Output 3–9V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDissipation Power:\u003c\/strong\u003e 9V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -40°C to +85°C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e New\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1 unit\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Made in Mainland China\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWho Is This For?\u003c\/h3\u003e\n\u003cp\u003eWhether you're testing a new charger, checking whether your power bank holds its rated capacity, or diagnosing a slow-charging issue with your phone, this USB tester gives you the data you need at a glance. It's a must-have tool for anyone who relies on USB-powered devices every day.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/electromagnetic-induction-tester-coil-motherboard-fault-detector\"\u003eElectromagnetic Induction Tester – Coil \u0026amp; Circuit Fault Detector\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/air-compressor-pressure-gauge-0-10-0-12-0-25-bar-hydraulic-diy\"\u003eAir Compressor Pressure Gauge 0-10\/0-12\/0-25 Bar | DIY Tool\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/clip-on-car-fan-led-display-199-speeds-usb-type-c\"\u003eClip-On Car Fan LED Display 199 Speeds | USB \u0026amp; Type-C\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/hand-power-tools\" target=\"_blank\" rel=\"noopener\"\u003eOSHA guidance on hand and power tools\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What does this USB charger tester measure?\u003c\/h4\u003e\n\u003cp\u003eA: This multifunctional USB charger tester measures voltage, current (amperage), and battery\/power bank capacity in real time. It helps you verify whether your USB charger or power bank is outputting the correct values and performing as rated.\u003c\/p\u003e\n\u003ch4\u003eQ: What devices is this USB tester compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: The USB charger tester is compatible with a wide range of USB-powered devices and power sources, including wall chargers, computer USB ports, car chargers, and power banks. It supports an input\/output voltage range of 3V to 9V.\u003c\/p\u003e\n\u003ch4\u003eQ: Do I need any tools or cables to use this tester?\u003c\/h4\u003e\n\u003cp\u003eA: No additional tools or cables are required. Simply plug the USB charger tester directly into your USB port or charger, connect your device, and the display will show live voltage and current readings immediately.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What does this USB charger tester measure?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This multifunctional USB charger tester measures voltage, current (amperage), and battery\/power bank capacity in real time. 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