The FNIRSI HRM-10 is a portable, high-precision tester engineered for accurate measurement of voltage and internal resistance in 18650 lithium, lithium-ion, and LiFePO₄ batteries. Built for professionals and hobbyists, this product simplifies battery diagnostics, sorting, and data analysis in a compact handheld design.

Key Features

• Compact & Portable — Weighing only 225g with a slim form factor (158.7 × 80.5 × 28.4mm), this tester is suitable for workshop and field use.
• Wide Voltage Measurement Range — Supports 0V to ±100V (DC) with multiple gears including automatic, 1V, 10V, and 100V modes.
• Automatic Sorting Mode — Automatically filters and classifies batteries to quickly distinguish good and bad cells.
• High-Precision Internal Resistance Testing — Measures 0 to 200Ω with ±0.5% accuracy, making it suitable for professional battery health evaluation.
• Data Recording & Export — Stores historic measurements and allows exporting, enabling detailed tracking and performance analysis.
• Rechargeable via Type-C — Powered by a 1000mAh internal lithium battery and charged through a 5V/1A USB Type-C interface.

Included

• FNIRSI HRM-10 Tester ×1
• Type-C Data Cable ×1
• Clip test line
• User Manual ×1
• Tester clamp (only in full set)
• Tester probe (only in full set)

Technical Specifications

• Voltage Measuring Range: 0 — ±100V DC
• Voltage Gears: Automatic / 1V / 10V / 100V
• Resistance Measuring Range: 0 — 200Ω
• Resistance Gears: Automatic / 20mΩ / 200mΩ / 2Ω / 20Ω / 200Ω
• Accuracy: ±0.5%
• Test Signal Frequency: AC 1kHz
• Recharge Interface: USB Type-C (5V/1A)
• Built-In Battery: 1000mAh lithium battery
• Weight: 225g
• Dimensions: 158.7 × 80.5 × 28.4mm