{"product_id":"fnirsi-hrm-10-battery-tester-voltage-internal-resistance-meter-for-car-household-batteries-1","title":"FNIRSI HRM-10 Battery Tester – Voltage \u0026 Internal Resistance Meter for Car \u0026 Household Batteries","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe FNIRSI HRM-10 is a compact handheld tester that reads voltage and internal resistance simultaneously. In everyday use, this dual readout helps you understand whether a battery is still performing well or nearing the end of its life. The results appear on a bright TFT color display, turning numbers into an intuitive snapshot you can act on. With thoughtful design and practical features, the HRM-10 is built for DIYers, car owners, and household technicians who value clarity and speed in their testing workflow.\u003c\/p\u003e\n\n\u003ch3\u003eKey capabilities\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSimultaneous voltage and internal resistance readouts\u003c\/li\u003e\n  \u003cli\u003eKelvin four-wire method reduces lead resistance and improves accuracy\u003c\/li\u003e\n  \u003cli\u003eManual range adjustments for different battery types\u003c\/li\u003e\n  \u003cli\u003eHistorical records and data export for review\u003c\/li\u003e\n  \u003cli\u003eEight-battery batch view for quick comparisons\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy dual-parameter testing matters\u003c\/h3\u003e\n\u003cp\u003eVoltage alone can mask aging effects, while resistance hints at internal changes. Together, they offer a more nuanced signal: a battery may show acceptable voltage but rising resistance, suggesting reduced capacity or higher internal heat under load. This combination helps you decide whether to replace, recharge, or reseat a battery, reducing downtime and supporting routine maintenance planning.\u003c\/p\u003e\n\n\u003ch3\u003eAccuracy and reliability\u003c\/h3\u003e\n\u003cp\u003eTo ensure trustworthy readings, the HRM-10 uses Kelvin four-wire connections to minimize contact resistance in the test path. You can also manually select the voltage and resistance ranges to tailor the test to each battery, from tiny cells to larger automotive units.\u003c\/p\u003e\n\n\u003ch3\u003eDisplay and ease of use\u003c\/h3\u003e\n\u003cp\u003eThe TFT HD color display presents numbers with clear typography and color cues, making it easier to interpret results in environments with variable lighting. The compact handheld form fits into a glove pocket or tool kit for on-site checks.\u003c\/p\u003e\n\n\u003ch3\u003ePractical use cases\u003c\/h3\u003e\n\u003cp\u003eUse it when swapping batteries in a device, after starting a car, or while organizing a batch of spare cells. The HRM-10 stores historical measurements and can export tables for your records, training manuals, or audit trails.\u003c\/p\u003e\n\n\u003ch3\u003eSafety and handling\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eVoltage range up to 100 V DC\u003c\/li\u003e\n  \u003cli\u003eResistance range up to 200 Ω\u003c\/li\u003e\n  \u003cli\u003eDo not apply AC voltage under any circumstances\u003c\/li\u003e\n  \u003cli\u003eDo not exceed the DC 100 V limit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eNote: this device is a diagnostic tool for electrical testing and should be used within its specified limits. It is not a medical device, and results reflect electrical characteristics of batteries rather than health claims.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What batteries can the FNIRSI HRM-10 test?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It supports a wide range of batteries, including household AA\/AAA and automotive varieties.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I export and review past test results?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, historical records can be stored and exported for review.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"FNIRSI","offers":[{"title":"Default Title","offer_id":42480873799765,"sku":"B0D6FPBGCX","price":61.85,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/3270\/4597\/files\/fnirsi-hrm-10-voltage-internal-resistance-tester.jpg?v=1778338672","url":"https:\/\/plentytorque.co.uk\/products\/fnirsi-hrm-10-battery-tester-voltage-internal-resistance-meter-for-car-household-batteries-1","provider":"PlentyTorque","version":"1.0","type":"link"}