{"product_id":"12v-car-battery-alternator-tester-led","title":"12V Car Battery and Alternator Tester, 6 LED Battery Checker for Charge Level and Charging System","description":"\u003cp\u003eA simple 12V battery and alternator tester with 6 LED lights. It shows how charged the battery is, checks whether the alternator is charging, and shows when a battery charger has finished.\u003c\/p\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFor 12V batteries only, per the supplier. Not for 24V systems.\u003c\/li\u003e\n\u003cli\u003ePer the supplier, it works with the 12V battery in gas cars and in hybrid cars.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery check:\u003c\/strong\u003e the LEDs show the battery's charge level.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlternator check:\u003c\/strong\u003e shows whether the charging circuit is working while the engine runs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCharger check:\u003c\/strong\u003e a green light shows when charging is complete.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-charge and overload check:\u003c\/strong\u003e also checks before charging and shows overload, per the supplier.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBattery voltage: 12V only\u003c\/li\u003e\n\u003cli\u003eIndicators: 6 LEDs (2 red, 3 green, 1 yellow)\u003c\/li\u003e\n\u003cli\u003eMax voltage and current: 13.9V, 15A (supplier rating)\u003c\/li\u003e\n\u003cli\u003eWire: copper, 0.06 mm², 9.8 in (25 cm) long\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1 x 12V battery tester\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eHow to Use\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003eBattery check: connect the tester and read the battery's charge level on the LEDs.\u003c\/li\u003e\n\u003cli\u003eAlternator check: start the engine and bring it to about 2,000 rpm. If a green light is lit, the charging circuit is OK.\u003c\/li\u003e\n\u003cli\u003eCharger check: while the battery is on a charger, a green light means charging is complete.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eGood to Know\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eThe supplier does not say how the tester connects to the battery or the car, so check the photos before ordering.\u003c\/li\u003e\n\u003cli\u003eResults show as colored LED lights, not as numbers on a screen.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"description-images\"\u003e\n\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S6b7da2cbf4644e628d634f856475510aP.jpg\"\u003e\n\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S28f48e04eb474169872a5e84f0e9e2d6g.jpg\"\u003e\n\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S19c259b5c17a40ff8887b66cc04bf10eu.jpg\"\u003e\n\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sd4495a69decd4f5b822e692b3702e8ccd.jpg\"\u003e\n\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S08d06c013a3a4ae7879616c28fe40c54t.jpg\"\u003e\n\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S0a93606409be4f6caad23f0ece21a2e1X.jpg\"\u003e\n\u003c\/div\u003e","brand":"BT Merch Co","offers":[{"title":"Default Title","offer_id":56249585860980,"sku":"14:771#12V","price":13.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1012\/5672\/4852\/files\/S08d06c013a3a4ae7879616c28fe40c54t.webp?v=1791205230","url":"https:\/\/btmerch.co\/products\/12v-car-battery-alternator-tester-led","provider":"BT Merch Co","version":"1.0","type":"link"}