Upgrade your testing setup with the FNIRSI HRM-10 Premium Kit – a professional-grade internal resistance and voltage tester built for serious DIYers, repair techs, and battery resellers.

This premium version includes everything you need to test Li-ion, LiFePO4, and lead-acid batteries with precision, including a custom clamp holder for 18650, 21700, and 26650 cells, alligator clip leads, and a rugged carrying case.

🔧 Key Features:

• Milliohm-Level Accuracy: Reads internal resistance from 0.01mΩ to 200Ω with ±1% precision.

• Wide Voltage Range: 0–100V DC for nearly any battery type.

• All-In-One Kit: Includes clamp for 18650/21700/26650, alligator test leads, and protective case.

• Smart Detection: Auto-senses voltage and resistance of battery under test.

• Clear LCD Display: Dual-line backlit screen for easy readout in any environment.

• USB-C Rechargeable: Built-in battery, no need for disposables.

💼 Premium Kit Includes:

• ✅ 1× FNIRSI HRM-10 Unit

• ✅ 1× USB-C Charging Cable

• ✅ 1× Clamp Holder for 18650 / 21700 / 26650

• ✅ 1× Pair of Alligator Clip Test Leads

• ✅ 1× Zippered Carry Case

• ✅ 1× Instruction Manual

🔋 Works With:

• 18650 / 21700 / 26650 Li-ion

• LiFePO4

• SLA / Lead-acid 12V Batteries

• Power Tool Packs

• DIY Battery Builds

📊 Technical Specs