{"product_id":"kaiheng-battery-load-tester-6v-12v-100a-50a-fixed-load-with-voltmeter-copper-clips","title":"KAIHENG Battery Load Tester 6V\/12V - 100A\/50A Fixed Load with Voltmeter \u0026 Copper Clips","description":"\u003cstrong\u003eKAIHENG Battery Load Tester is a handheld diagnostic tool that applies a controlled load to 6V and 12V batteries so you can quickly determine battery and charging-system health.\u003c\/strong\u003e\n\nWhether you maintain family cars, work on fleet vehicles, or own an RV or boat, this compact tester combines a voltmeter and fixed-load circuit to simulate starter draw and reveal weak batteries before they strand you. It delivers a reliable 100 A fixed load for 12V batteries and 50 A for 6V systems, while the clear readout and color-coded copper clips make testing straightforward for DIYers and pros alike.\n\n\u003ch3\u003eHow does this tester check battery condition?\u003c\/h3\u003e\n\u003cp\u003eThe KAIHENG tester places a controlled, time-limited load across the battery to mimic the starter motor’s demand, then shows whether voltage holds under stress. That pressurized check is more revealing than a simple open-circuit voltage reading because it exposes batteries that fail under load.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eApplies 100 A load for 12V and 50 A load for 6V batteries\u003c\/li\u003e\n  \u003cli\u003eHold load up to 10 seconds to simulate starting current\u003c\/li\u003e\n  \u003cli\u003eVoltage accuracy of ±0.2 V for reliable pass\/fail interpretation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan I use this on different vehicles and battery sizes?\u003c\/h3\u003e\n\u003cp\u003eYes — the unit is designed for common 6V and 12V lead-acid batteries used in cars, motorcycles, ATVs, boats, and RVs. The heavy-duty copper clips and insulated handle make it usable in garages, driveways, or at the roadside.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSuitable for cars, trucks, SUVs, motorcycles, ATVs, boats and RVs\u003c\/li\u003e\n  \u003cli\u003eCopper clip connectors with red\/black grips ensure correct polarity\u003c\/li\u003e\n  \u003cli\u003ePortable, simple hookup without additional adapters\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat safety and durability features does it include?\u003c\/h3\u003e\n\u003cp\u003eThe KAIHENG tester is built for repeated garage use with insulated grips and a molded carry handle to protect hands while moving the tool. The copper clips provide solid electrical contact and the fixed-test duration reduces risk of prolonged discharge.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eInsulated top handle for secure carrying and operation\u003c\/li\u003e\n  \u003cli\u003eRed positive and black negative rubber grips to prevent misconnection\u003c\/li\u003e\n  \u003cli\u003eDesigned to avoid extended draw — typical load held up to 10 seconds\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the voltmeter and readout help diagnose the charging system?\u003c\/h3\u003e\n\u003cp\u003eThe integrated voltmeter reports battery voltage both at rest and under applied load, enabling quick checks of alternator output and starter draw behavior. Use it to compare no-load voltage to loaded voltage to spot weak batteries or charging issues.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eShows static and load voltage for clear diagnosis\u003c\/li\u003e\n  \u003cli\u003eHelps identify charging problems when voltage is low under load\u003c\/li\u003e\n  \u003cli\u003eAccurate to ±0.2 V for consistent troubleshooting results\u003c\/li\u003e\n\u003c\/ul\u003e\n\nWho is this for:\n\nThis tool is aimed at vehicle owners, home mechanics, fleet managers and small repair shops that need an affordable, portable way to test 6V and 12V batteries and basic charging-system function. If you want to preemptively verify starting reliability, perform routine maintenance checks, or diagnose whether a battery or alternator is at fault, the KAIHENG Battery Load Tester gives a fast, hands-on answer without complex setup. Its rugged clips, clear results and compact form make it a useful addition to any roadside kit, garage bench or service vehicle toolbox.\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this tester work on both 6V and 12V batteries?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It supports 6V batteries at 50 A load and 12V batteries at 100 A load for accurate condition checks.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How long should I hold the load during a test?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Hold the load for up to 10 seconds to simulate starter draw and observe voltage under stress.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"KAIHENG","offers":[{"title":"Default Title","offer_id":48085809627294,"sku":"B0BK7WLBV8","price":45.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/kaiheng-front-panel_991c1559-4531-4b30-bec5-582289e82abe.jpg?v=1785877612","url":"https:\/\/northtrailauto.ca\/products\/kaiheng-battery-load-tester-6v-12v-100a-50a-fixed-load-with-voltmeter-copper-clips","provider":"North Trail Auto","version":"1.0","type":"link"}