{"product_id":"ts120-optimate-test-cranking-alternator","title":"OptiMate TEST – Cranking \u0026 Alternator - TS-121","description":"\u003cp dir=\"ltr\"\u003e\u003cspan\u003e\u003cstrong\u003eThe OptiMate TEST – Cranking \u0026amp; Alternator \u003c\/strong\u003eis a compact on-vehicle tester engineered to evaluate 12 V lead-acid (AGM, GEL, STD) and 12.8 V LiFePO₄ starter batteries. It checks battery \u003cstrong\u003estate of charge, engine-cranking performance, and alternator\/charging-system output\u003c\/strong\u003e — giving you a full health snapshot of the battery and charging system with a single tool.\u003c\/span\u003e\u003ca href=\"https:\/\/optimate1.com\/product\/optimate-test-cranking-alternator\/?utm_source=chatgpt.com\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eFeatures \u0026amp; Benefits\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\n\u003cspan\u003e\u003cstrong\u003eSupports 12 V AGM, GEL\u003c\/strong\u003e \u003cstrong\u003eand standard lead-acid, and 12.8 V LiFePO₄\u003c\/strong\u003e starter batteries.\u003c\/span\u003e\u003ca href=\"https:\/\/optimate1.com\/product\/optimate-test-cranking-alternator\/?utm_source=chatgpt.com\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\n\u003cstrong\u003eFast, all-in-one tes\u003c\/strong\u003e\u003cspan\u003e\u003cstrong\u003et\u003c\/strong\u003e: connect the clips, read battery charge, start engine — within ~15 seconds it displays cranking voltage and charging voltage simultaneously.\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\n\u003cspan\u003e\u003cstrong\u003eWide voltage measurement range\u003c\/strong\u003e:\u003c\/span\u003e\u003cspan\u003e shows cranking voltages down to 6 V and charging voltages up to 15 V — ideal for spotting weak batteries or overcharging conditions.\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\n\u003cstrong\u003eDurable design\u003c\/strong\u003e\u003cspan\u003e: 100cm cable SPT-2W 16 AWG, no fuse required\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\n\u003cstrong\u003eLow-temperature rated\u003c\/strong\u003e\u003cspan\u003e — remains flexible down to \u003c\/span\u003e\u003cstrong\u003e–40 °C\u003c\/strong\u003e\u003cspan\u003e, performing reliably even in freezing conditions\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\n\u003cstrong\u003eFully enclosed electronics\u003c\/strong\u003e\u003cspan\u003e with clear LED indicators (green\/red for state of charge; displays lowest cranking volts and running charge voltage) for quick, reliable results.\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\n\u003cstrong\u003eSimple to use\u003c\/strong\u003e\u003cspan\u003e: connects via included battery clips or to an installed SAE battery lead; fully automatic operation.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003e\u003cstrong\u003eCheck the battery’s state of charge\u003c\/strong\u003e — a low battery will reduce engine-cranking performance.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003e\u003cstrong\u003eStart the engine\u003c\/strong\u003e — the OptiMate TEST automatically records and displays the lowest cranking voltage for 20 seconds.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eWith the engine running, \u003cstrong\u003everify the charging voltage\u003c\/strong\u003e supplied by the alternator and regulated by the voltage regulator.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003e(Low charging voltage results in reduced battery performance. Conversely, excessively high charging voltage promotes excessive gassing and can ultimately damage a lead-acid battery. For LiFePO₄ starter batteries, over-voltage charging is critically harmful and can lead to immediate failure.)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cmeta charset=\"utf-8\"\u003eWhat is in the box:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" style=\"font-weight: bold;\"\u003e\u003cstrong\u003e1 x \u003cmeta charset=\"utf-8\"\u003eThe OptiMate TEST – Cranking \u0026amp; Alternator\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eWarranty\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cb id=\"docs-internal-guid-dcfd06eb-7fff-4167-0026-f2a8e8fb52ee\"\u003e\u003cspan\u003e3-year limited replacement warranty\u003c\/span\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TecMate USA","offers":[{"title":"Default Title","offer_id":53350981665081,"sku":"TS-121","price":49.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0998\/1801\/2985\/files\/TS120-121-2.jpg?v=1780340435","url":"https:\/\/tecmate-us.com\/products\/ts120-optimate-test-cranking-alternator","provider":"TecMate USA","version":"1.0","type":"link"}