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FNIRSI HRM-10 Voltage Internal Resistance Battery Tester, Meter for Various Types, Car AAA AA, 100V 200Ω, Digital Analyzer for Household Automotive

FNIRSI HRM-10 Voltage Internal Resistance Battery Tester, Meter for Various Types, Car AAA AA, 100V 200Ω, Digital Analyzer for Household Automotive

Q: Why can the measurement of internal resistance be a good or bad sign for a battery?

The battery will be damaged during use, the capacity will decrease and the internal resistance will increase. The lower the internal resistance of the battery, the better the performance and the higher the load capacity.

Q: Does the battery need to be fully charged for measurement?

The internal resistance of a battery is usually different when it is fully charged and when it is low. When the battery is fully charged, the internal resistance is usually lower. When the battery is low, the internal resistance is usually higher.

Q: Why are the measurements unstable?

There is poor contact between the test clip and the battery, or there is a strong background noise.

Q: Why is the measured internal resistance higher than the battery internal resistance?

The internal resistance of a large capacity battery is very low. The internal resistance of the battery electrode or wire is often higher than the internal resistance of the battery.The clamp needs to be in the correct position to get accurate data.

Product ID: 675024022

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Details

Brand
FNIRSI
Power Source
Battery
Style
Black
Colour
Black
Item Weight
0.48 Ounces

⚡100V max voltage range

📊8 sets historical data storage

🔋200Ω resistance measurement

Frequently Bought Together

FNIRSI HRM-10 Voltage Internal Resistance Battery Tester，Battery Voltage Meter for Types of Batteries, Car Battery Tester, AAA AA Battery, 100V 200Ω, Digital Battery Analyzer for Household Automotive

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Description

🔋 Power up your precision — never get caught with a dead battery again!

DUAL CHECK POWER - Simultaneously measures voltage & internal resistance for instant battery health insights.
VIVID HD DISPLAY - TFT color screen delivers crystal-clear, easy-to-read results—no more guessing.
PRECISION PERFECTED - Kelvin four-wire connection eliminates contact errors for ultra-accurate readings.
DATA DRIVEN DECISIONS - Stores and exports up to 8 historical test records to track battery performance over time.
VERSATILE BATTERY GURU - Compatible with car, AAA, AA, and household batteries—one tester to rule them all.

The FNIRSI HRM-10 is a sleek, handheld digital battery tester designed for professionals and enthusiasts alike. It measures both voltage (up to 100V) and internal resistance (up to 200Ω) using a high-accuracy Kelvin four-wire method. Featuring a vibrant TFT HD color display, it supports multiple battery types including automotive and household cells, stores up to 8 historical test results, and exports data for detailed analysis—empowering you to maintain peak battery performance with confidence.

Specifications

Brand	FNIRSI
Power Source	Battery Powered
Style	Black
Colour	Black
Item Weight	0.48 Ounces
Min. Operating Voltage	100 Volts
Measurement Type	Ohmmeter, Voltmeter
Manufacturer	FNIRSI
Number of Memory Sticks	1
Item Weight	13.6 g
Package Dimensions	20.8 x 12.09 x 7.29 cm; 13.61 g
Item part number	001
Included Components	Date cable and kelvin clip test line
Are batteries included?	No

Have a Question? See What Others Asked

Why can the measurement of internal resistance be a good or bad sign for a battery?

Does the battery need to be fully charged for measurement?

Why are the measurements unstable?

Why is the measured internal resistance higher than the battery internal resistance?

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