USB Charger Tester Doctor – Voltage Current Meter & Battery Capacity Analyzer
Precision-engineered ABS shell with reinforced PC interior for durability and accurate readings. Features a bright LCD display for real-time voltage (0-30V) and current (0-5A) monitoring. Ultra-compact design fits effortlessly into pockets or toolkits. Ideal for testing mobile power banks, car chargers, USB cables, and troubleshooting faulty adapters. Advanced multi-protocol chip supports fast charging detection (QC/PD). Measures battery capacity (0-9999mAh) with ±1% accuracy for professional-grade diagnostics. Perfect for engineers, travelers, and tech enthusiasts seeking reliable, portable power diagnostics. Bulk pricing available for resellers and workshops. Global wholesale supplier – unbeatable prices, direct factory sourcing, and bulk discounts on all essentials.