{"product_id":"obdresource-car-battery-tester-br502-6v-12v-24v-digital-analyzer-100-2000-cca-soh-soc","title":"OBDResource Car Battery Tester BR502 — 6V\/12V\/24V Digital Analyzer, 100–2000 CCA \u0026 SOH\/SOC","description":"\u003cp\u003e\u003cstrong\u003eThe OBDResource BR502 is a handheld digital battery tester that quickly evaluates 6V, 12V and 24V batteries (100–2000 CCA) by measuring voltage, internal resistance, SOC and SOH to deliver fast, reliable pass\/fail guidance.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWhether you're a DIY vehicle owner, fleet manager, or marine enthusiast, the BR502 provides a compact, easy-to-use way to check battery condition before a no-start event. The unit supports common battery chemistries—flooded lead-acid, AGM flat plate, AGM spiral and gel—so you can test batteries found in cars, trucks, motorcycles, boats and SUVs. It produces results in seconds on a clear 1.8-inch display and includes safety features like reverse-polarity protection for confident operation.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the BR502 determine if a battery needs service or replacement?\u003c\/h3\u003e\n\u003cp\u003eThe BR502 analyzes battery health by combining voltage reading, cold cranking amps (CCA) test and internal resistance to estimate State of Health (SOH) and State of Charge (SOC). The device compares measured values to CCA benchmarks and returns an easy-to-understand status: Good, Normal or Poor.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMeasures 100–2000 CCA to assess starting capacity\u003c\/li\u003e\n  \u003cli\u003eReports internal resistance to reveal cell deterioration\u003c\/li\u003e\n  \u003cli\u003eDisplays SOC and SOH percentages to inform charging or replacement\u003c\/li\u003e\n  \u003cli\u003eProvides immediate replace\/charge suggestions on screen\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan I use this tester on different vehicle types and battery chemistries?\u003c\/h3\u003e\n\u003cp\u003eYes—the BR502 is designed for broad compatibility. It supports 6V, 12V and 24V systems and common lead-acid battery types used across passenger cars, light trucks, motorcycles and marine craft. This versatility makes it useful for personal vehicles and small fleets.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWorks with flooded, AGM flat plate, AGM spiral and gel batteries\u003c\/li\u003e\n  \u003cli\u003eCompatible with cars, pickups, SUVs, motorcycles, boats and more\u003c\/li\u003e\n  \u003cli\u003eTests batteries in-vehicle or after removal, even if heavily discharged\u003c\/li\u003e\n  \u003cli\u003eSuitable for 6V, 12V and 24V electrical systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow fast and accurate are the test results?\u003c\/h3\u003e\n\u003cp\u003eThe BR502 delivers results in about two seconds thanks to an onboard intelligent microprocessor, with a stated accuracy rate up to 99.6% against CCA standards. Fast readings let you diagnose multiple batteries quickly during routine maintenance or pre-trip checks.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eResults display on a 1.8-inch HD screen within two seconds\u003c\/li\u003e\n  \u003cli\u003eHigh-precision CCA-based assessment for reliable diagnostics\u003c\/li\u003e\n  \u003cli\u003eClear Good \/ Normal \/ Poor outcome to simplify decisions\u003c\/li\u003e\n  \u003cli\u003eRapid testing reduces downtime for fleet or workshop tasks\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs the BR502 easy and safe to use for beginners?\u003c\/h3\u003e\n\u003cp\u003eYes—the tester is plug-and-play: clamp the color-coded clips to the battery terminals and the unit will run its test automatically. Safety features prevent damage from accidental reverse connection and help protect both the tester and the battery during use.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSimple clamp connection works in or out of the vehicle\u003c\/li\u003e\n  \u003cli\u003eReverse polarity protection disables the tester if clips are swapped\u003c\/li\u003e\n  \u003cli\u003eScreen flicker warning indicates poor clip contact to improve reliability\u003c\/li\u003e\n  \u003cli\u003eNo complex setup required—designed for first-time users\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: The OBDResource BR502 is suited to car owners who want fast, readable battery checks at home, motorcyclists and boat owners who need portable diagnostics, and small-fleet operators or technicians who require dependable CCA-based testing without bulky bench equipment. If you want clear guidance on charging versus replacement and the ability to test a wide range of 6V–24V batteries quickly and safely, the BR502 offers a compact, accurate solution.\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 battery voltages and CCA range does the BR502 support?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It supports 6V, 12V and 24V batteries and tests 100–2000 CCA.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I test a battery while it is still in the vehicle?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the BR502 works in-vehicle or out of vehicle and can test even deeply discharged batteries.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"OBDResource","offers":[{"title":"Default Title","offer_id":55164025143639,"sku":"B0928X5HSY","price":31.74,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/obdresource-br502-front-panel.jpg?v=1790348952","url":"https:\/\/britishgarage.co.uk\/products\/obdresource-car-battery-tester-br502-6v-12v-24v-digital-analyzer-100-2000-cca-soh-soc","provider":"British Garage","version":"1.0","type":"link"}