Peacefair PZEM-010 USB Battery Tester – Precision & Portability for Power Enthusiasts

Accurate 4-Wire Internal Resistance Measurement
Professional-grade testing with Kelvin clip technology ensures precise readings for 18650, 21700, and other rechargeable batteries, eliminating contact resistance errors.
Rechargeable USB-C Power & LCD Clarity
Features a built-in 500mAh battery with USB-C charging and a crisp LCD screen for on-the-go testing in workshops, labs, or field repairs.
Durable ABS Shell & Compact Design
High-impact ABS housing with reinforced solder joints withstands daily use. Pocket-sized for easy storage in toolkits or backpacks.
Multi-Scene Battery Health Check
Ideal for DIY builders, vape shops, solar power maintenance, and e-bike battery diagnostics. Quickly identifies weak cells in series/parallel setups.
Direct Voltage/Resistance Display
No complex calibration—instantly reads 0-5V voltages and 0-999mΩ resistance. Essential for battery recycling or quality control in bulk procurement.
Global Wholesale Advantage
Lowest bulk pricing for distributors, backed by full-category sourcing and fast logistics. Stock up for resale or team use with confidence.