{"product_id":"topdiag-bt300-battery-load-tester-12v-24v-20-2000-cca-car-battery-alternator-tester","title":"TopDiag BT300 Battery Load Tester – 12V\/24V, 20-2000 CCA, Car Battery \u0026 Alternator Tester","description":"\u003cp\u003eMeet the TopDiag BT300 Battery Load Tester, a compact diagnostic tool designed for 12V and 24V vehicle systems. It quickly assesses battery health, charging status, and starting condition, helping you decide if a battery, alternator, or wiring may need attention. The BT300 is built for both professionals and DIYers, delivering clear results that support informed maintenance decisions without promising guarantees.\u003c\/p\u003e\n\u003cp\u003eIt supports a broad range of battery standards including CCA, JIS, GB, SAE, MCA, CA, DIN, IEC, EN and BCI. Note that the BT300 is not compatible with 6V batteries and is not suitable for lithium cells, ensuring you select the right tool for the job.\u003c\/p\u003e\n\u003ch3\u003eKey capabilities at a glance\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eUniversal 12V and 24V testing covers most automotive starter and auxiliary batteries\u003c\/li\u003e\n  \u003cli\u003eTests common battery types such as lead-acid, AGM, AGM spiral, and gel types\u003c\/li\u003e\n  \u003cli\u003eProvides deterministic data for battery health (SOH), charge status (SOC), CCA, and impedance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn real world scenarios, you can use BT300 for quick roadside checks, pre-service planning, or garage diagnostics. The device guides you to select the correct battery type or CCA value, and results appear in about 10 seconds when used with proper inputs.\u003c\/p\u003e\n\u003ch3\u003eCranking and charging diagnostics\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eCranking test reveals starting system readiness and battery status during engine start\u003c\/li\u003e\n  \u003cli\u003eCharging test shows how the alternator performs while the engine runs\u003c\/li\u003e\n  \u003cli\u003eSoftware update via USB keeps the BT300 current with new features and improved compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe BT300 is compatible with a wide range of 12V and 24V vehicles, including cars, trucks, buses, diesel engines, motorcycles, boats, RVs, and more. A clear backlit LCD and simple one-button operation make the tool approachable for professionals and hobbyists alike.\u003c\/p\u003e\n\u003ch3\u003ePower, language and updates\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eThe BT300 is powered by the vehicle battery during use and is not rechargeable on its own\u003c\/li\u003e\n  \u003cli\u003eUSB is reserved for firmware\/software updates only, not charging\u003c\/li\u003e\n  \u003cli\u003eSoftware supports multiple languages and can be updated to access the latest features\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWith thoughtful design and practical diagnostics, the BT300 helps you plan maintenance with confidence, selecting realistic scenarios based on your vehicle type and battery configuration. It is a capable partner for everyday vehicle care without overpromising results.\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 devices can BT300 test?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: BT300 supports 12V\/24V vehicles and tests battery health, charge status, CCA, and impedance, plus starting and charging conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How is the BT300 powered and updated?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The unit runs when connected to the vehicle battery; USB is for software updates only, not charging.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"TopDiag","offers":[{"title":"Default Title","offer_id":42470718865493,"sku":"B0D95HHKYV","price":43.22,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/3270\/4597\/files\/topdiag-bt300-front-panel-display.jpg?v=1778145742","url":"https:\/\/plentytorque.co.uk\/products\/topdiag-bt300-battery-load-tester-12v-24v-20-2000-cca-car-battery-alternator-tester","provider":"PlentyTorque","version":"1.0","type":"link"}