{"product_id":"kaiheng-battery-load-tester-6-12v-digital-voltmeter-with-100a-50a-fixed-load-and-alligator-clips","title":"KAIHENG Battery Load Tester – 6\/12V Digital Voltmeter with 100A\/50A Fixed Load and Alligator Clips","description":"\u003cp\u003e\u003cstrong\u003eThe KAIHENG Battery Load Tester is a handheld diagnostic tool that runs a controlled load and voltage check to reveal a vehicle battery’s health and charging-system performance.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf you need a quick, reliable way to determine whether a battery, starter draw or alternator is functioning correctly, this compact tester performs fixed-current load tests across common voltages and displays accurate voltage readings. Designed for home mechanics and professional garages alike, it simplifies battery health checks for cars, trucks, motorcycles, RVs and marine craft without complicated setup.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the load test show if a battery is still good?\u003c\/h3\u003e\n\n\u003cp\u003eThe tester applies a steady, known load to the battery for a short period to simulate the electrical demand of a starter motor. Voltage under load is measured and compared to expected ranges; a steep voltage drop or failure to recover indicates a weakened or failing battery.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFixed 100 A load for 12 V batteries and 50 A for 6 V batteries for consistent comparisons\u003c\/li\u003e\n  \u003cli\u003eHold-the-load switch lets you apply the load up to 10 seconds to observe voltage behavior\u003c\/li\u003e\n  \u003cli\u003eVoltage accuracy around ±0.2 V for repeatable readings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat vehicles and batteries can I test with this unit?\u003c\/h3\u003e\n\n\u003cp\u003eThis KAIHENG tester covers a wide range of common vehicle electrical systems and battery types used in everyday transportation and recreation. It’s suitable for automotive, light truck, motorcycle and small marine batteries that use 6 V or 12 V systems, plus other applications that fit within the specified load and voltage range.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e6 V and 12 V lead-acid style batteries for motorcycles, lawn equipment and small engines\u003c\/li\u003e\n  \u003cli\u003e12 V automotive batteries for cars, pickups, SUVs and light trucks\u003c\/li\u003e\n  \u003cli\u003eMarine and RV batteries used in auxiliary and starting circuits\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I operate the tester safely and interpret results?\u003c\/h3\u003e\n\n\u003cp\u003eOperation is straightforward: attach the copper-alligator clips to the battery terminals, select the appropriate voltage\/load behavior, then press the load switch to run the test while watching the digital voltmeter. Safety features and a ventilated housing reduce heat buildup; use short test intervals and follow basic battery safety practices.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRed clip to positive terminal and black clip to negative to avoid reverse polarity\u003c\/li\u003e\n  \u003cli\u003eUse insulated carry handle and rubber grips on clips to reduce shock risk\u003c\/li\u003e\n  \u003cli\u003eLimit load application to the recommended 10-second period to prevent overheating\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan this tester help diagnose alternator or charging-system problems?\u003c\/h3\u003e\n\n\u003cp\u003eYes — by checking battery voltage at rest, under load and while the engine runs, you can detect charging irregularities and common alternator issues. If the voltage does not rise to the expected charging range while the engine is running, or if voltage falls excessively under load, further alternator or regulator testing is warranted.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompare voltage at rest versus voltage with engine running to assess charging\u003c\/li\u003e\n  \u003cli\u003eObserve voltage recovery after load removal to spot weak charging or battery internal resistance\u003c\/li\u003e\n  \u003cli\u003eCombine with starter-draw observations to narrow down starter versus battery issues\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The KAIHENG Battery Load Tester is aimed at DIYers, home mechanics and small workshops that need a dependable, portable way to evaluate battery condition and basic charging-system performance. It’s also useful for fleet managers, boating enthusiasts and motorcycle owners who want fast diagnostics without costly shop visits. The unit’s simple controls, clear voltmeter readout, insulated grips and ventilated housing make routine battery checks faster and safer, offering repeatable results for decision-making about replacement or further electrical diagnostics.\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 voltages and load currents does this tester support?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It supports 6 V and 12 V batteries with a fixed 100 A load for 12 V and 50 A for 6 V, plus voltage readings accurate to about ±0.2 V.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How long should I apply the load during a test?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Apply the load for up to 10 seconds as recommended to simulate starter draw without overheating the unit.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"KAIHENG","offers":[{"title":"Default Title","offer_id":55167360958807,"sku":"B0BK7X2GSK","price":42.9,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/kaiheng-front-panel-and-display.jpg?v=1790384769","url":"https:\/\/britishgarage.co.uk\/products\/kaiheng-battery-load-tester-6-12v-digital-voltmeter-with-100a-50a-fixed-load-and-alligator-clips","provider":"British Garage","version":"1.0","type":"link"}