{"product_id":"foxwell-bt705plus-car-truck-battery-tester-12v-24v-2-8-color-lcd-5-9-ft-cables-fast-accurate-diagnostics","title":"FOXWELL BT705Plus Car \u0026 Truck Battery Tester 12V\/24V – 2.8\" Color LCD, 5.9 ft Cables, Fast Accurate Diagnostics","description":"\u003cp\u003e\u003cstrong\u003eThe FOXWELL BT705Plus is an all-in-one 12V\/24V battery, cranking and alternator tester that delivers fast, accurate diagnostics for flooded, AGM, spiral and GEL lead-acid batteries.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eDesigned for professionals and DIYers alike, the BT705Plus combines a faster processor, refined algorithms and a high-contrast 2.8\" color LCD to give trustworthy results up to 30% quicker than its predecessor. Use it to check state-of-health (SOH), state-of-charge (SOC), cranking performance, cold-start risks and charging ripple — all from long 5.9 ft cables so you can perform tests while seated in the cab. The unit supports 12V and 24V systems found on cars, trucks, RVs, boats and tractors, and it’s compatible with most lead-acid battery types (not for lithium batteries).\u003c\/p\u003e\n\n\u003ch3\u003eHow does the BT705Plus identify a weak battery?\u003c\/h3\u003e\n\u003cp\u003eThe BT705Plus measures SOH and SOC and runs a controlled load test to reveal internal weakness that simple voltage checks miss. Its upgraded processor and algorithms improve detection on low-voltage or nearly dead batteries, reducing false passes.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSOH and SOC readouts show battery wear and charge level\u003c\/li\u003e\n  \u003cli\u003eLoad test simulates real-world starting demand to reveal capacity loss\u003c\/li\u003e\n  \u003cli\u003eAccepts rated CCA input for accurate comparisons to manufacturer specs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan this device diagnose alternator and charging problems?\u003c\/h3\u003e\n\u003cp\u003eYes — the BT705Plus runs charging system tests and measures ripple to detect alternator faults and poor regulator performance. It reports charging voltage and ripple so you can spot erratic output that causes dim lights or battery drain.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCharging voltage readout for steady output verification\u003c\/li\u003e\n  \u003cli\u003eCharging ripple measurement to detect bad diodes or regulators\u003c\/li\u003e\n  \u003cli\u003eWorks in-vehicle with accessories off and ignition OFF for accurate results\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is it to use in a shop or on the roadside?\u003c\/h3\u003e\n\u003cp\u003eVery straightforward — the bright 2.8\" color LCD shows five diagnostic indicators at a glance and the long 5.9 ft cables let one person perform tests from inside the vehicle. High-conductivity clamps ensure solid contact and reliable measurements with minimal setup.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eLarge color display readable indoors or outdoors\u003c\/li\u003e\n  \u003cli\u003eExtra-long cables let you sit in the driver’s seat to test cranking and charging\u003c\/li\u003e\n  \u003cli\u003eClear pass\/fail-style indicators speed decision-making\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat batteries and vehicles are supported?\u003c\/h3\u003e\n\u003cp\u003eThe BT705Plus supports common lead-acid battery types for both 12V and 24V electrical systems — making it suitable for passenger cars, light and heavy trucks, RVs, marine craft and agricultural machines. It is not compatible with lithium battery chemistries.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible types: Flooded, AGM, Spiral, GEL (not lithium)\u003c\/li\u003e\n  \u003cli\u003eSystems: 12V and 24V vehicles including cars, trucks, RVs, boats, tractors\u003c\/li\u003e\n  \u003cli\u003eRequires entering the battery’s rated CCA from the battery label for load tests\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: The FOXWELL BT705Plus suits mechanics, fleet managers, roadside technicians and informed vehicle owners who need reliable, repeatable battery and charging diagnostics without carrying multiple meters. If you want faster, more accurate testing than a basic voltmeter and a compact, portable tool that handles both cranking and charging checks, the BT705Plus is designed to fit into shops, service vans and home garages. Always follow the device’s in-vehicle testing instructions: switch off accessories, set ignition to OFF, and close doors for accurate readings. The kit ships with the BT705Plus unit, storage box and accessories for repeat testing and tracking results in routine maintenance workflows.\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 BT705Plus work on 24V truck batteries?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, it supports both 12V and 24V systems and common lead-acid battery types (not lithium).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do I need to enter battery CCA for tests?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, enter the battery's rated CCA from its label so load test results compare to manufacturer specs.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"FOXWELL","offers":[{"title":"Default Title","offer_id":48080798974110,"sku":"B0D59V9DFN","price":274.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/foxwell-bt705plus-front-panel.jpg?v=1785787973","url":"https:\/\/northtrailauto.ca\/products\/foxwell-bt705plus-car-truck-battery-tester-12v-24v-2-8-color-lcd-5-9-ft-cables-fast-accurate-diagnostics","provider":"North Trail Auto","version":"1.0","type":"link"}