{"product_id":"foxwell-bt705-battery-charging-system-tester-12v-24v-cca-soh-alternator-check-2-8-screen","title":"FOXWELL BT705 Battery \u0026 Charging System Tester 12V\/24V — CCA, SOH \u0026 Alternator Check, 2.8\" Screen","description":"\u003cp\u003e\u003cstrong\u003eThe FOXWELL BT705 is a handheld battery and charging system tester that delivers guided, lab‑grade checks for 12V and 24V lead‑acid batteries, alternators and starter cranking performance.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe BT705 combines clear on‑screen prompts with rugged hardware to give DIY mechanics, fleet technicians and shop operators reliable battery condition data without needing to decode raw numbers. It evaluates cold cranking amps (CCA), voltage, internal resistance and state of health (SOH), runs starter cranking tests during engine start, and verifies charging system output. Built for repeatable use, the unit supports Flooded, AGM, GEL and EFB batteries across 100–2000 CCA and both 12V and 24V systems.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the BT705 tell me if a battery needs service?\u003c\/h3\u003e\n\u003cp\u003eThe BT705 runs a sequence of measurements and summarizes results as clear action states like GOOD, RECHARGE or REPLACE, so you don’t have to interpret every metric yourself. It accounts for temperature and CCA rating to give contextually correct advice.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMeasures CCA, voltage and internal resistance to calculate SOH\u003c\/li\u003e\n  \u003cli\u003eTemperature‑compensated testing for accurate cold‑weather results\u003c\/li\u003e\n  \u003cli\u003eSimple verdicts displayed on the 2.8‑inch screen\u003c\/li\u003e\n  \u003cli\u003eCompatible with common lead‑acid chemistries and a broad CCA range\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan I test the starter and alternator without help?\u003c\/h3\u003e\n\u003cp\u003eYes — the BT705’s long 5.9 ft cable enables one‑person testing from the driver’s seat while starting the engine. The tester records cranking voltage and cranking time during startup, and it verifies charging output while the engine runs.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRecorded cranking voltage and duration during engine start\u003c\/li\u003e\n  \u003cli\u003eCharging system check to detect weak alternators or wiring issues\u003c\/li\u003e\n  \u003cli\u003eLong cable lets you view results while operating the vehicle alone\u003c\/li\u003e\n  \u003cli\u003eGuided prompts walk you through each step to avoid mistakes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs the BT705 durable and suitable for daily shop use?\u003c\/h3\u003e\n\u003cp\u003eThe BT705 is designed for repeated professional use with a protective housing, robust clamps and an included hard carrying case. The build quality and storage solution keep the tester ready for garages, fleets and heavy personal use.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRugged protective casing resists workshop wear\u003c\/li\u003e\n  \u003cli\u003eDurable battery clamps for consistent contact\u003c\/li\u003e\n  \u003cli\u003eHard carrying case organizes accessories and prevents damage\u003c\/li\u003e\n  \u003cli\u003eEasy‑to‑read display built for frequent handling\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich vehicles and battery types will it handle?\u003c\/h3\u003e\n\u003cp\u003eThe BT705 works with 12V and 24V electrical systems and covers batteries from small cars to medium commercial vehicles. It supports Flooded, AGM, GEL and EFB lead‑acid batteries and a wide CCA window, making it versatile for mixed fleets and household garages.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e12V and 24V systems tested with the same unit\u003c\/li\u003e\n  \u003cli\u003eCompatible with common lead‑acid chemistries including start‑stop EFB\u003c\/li\u003e\n  \u003cli\u003eCCA range of 100–2000 CCA accommodates cars, trucks and RVs\u003c\/li\u003e\n  \u003cli\u003eUseful for passenger cars, pickups, trucks, boats and fleet vehicles\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: The FOXWELL BT705 suits home mechanics who want trustworthy battery validation before installing a new battery, technicians or small shops that need repeatable diagnostics, and fleet managers who must screen many batteries quickly. If you need guided results, accurate CCA and SOH readings, starter cranking data, and a device built to survive workshop conditions, the BT705 is a practical, all‑round battery and charging system tester.\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: Does the BT705 test both 12V and 24V batteries?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The BT705 supports both 12V and 24V systems and covers batteries with 100–2000 CCA.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I run starter and alternator checks by myself?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The 5.9 ft cable and guided prompts let one person record cranking and charging tests safely.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"FOXWELL","offers":[{"title":"Default Title","offer_id":55171153264983,"sku":"B01ANF1D7U","price":144.38,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/foxwell-bt705-front-display.jpg?v=1790439353","url":"https:\/\/britishgarage.co.uk\/products\/foxwell-bt705-battery-charging-system-tester-12v-24v-cca-soh-alternator-check-2-8-screen","provider":"British Garage","version":"1.0","type":"link"}