{"product_id":"4-0ah-battery","title":"4.0AH Lithium IonBattery","description":"\u003cdiv class=\"answer_container\" role=\"region\"\u003e\n\u003cdiv id=\"cht_root.5510\" class=\"cht_root\"\u003e\n\u003cdiv class=\"cht_txt_cont\"\u003e\n\u003cdiv class=\"cht_txt_obs\"\u003e\n\u003cdiv class=\"cht_ans_root\"\u003e\n\u003cdiv class=\"cht_templ\"\u003e\n\u003cdiv class=\"cht_text\"\u003e\n\u003cdiv class=\"cht_mdroot\"\u003e\n\u003ch1 class=\"frg-ins1\"\u003eHow Long a 4.0 Ah Battery Lasts\u003c\/h1\u003e\n\u003cp\u003e\u003cspan\u003eA \u003cstrong\u003e4.0 Ah (Ampere-hour)\u003c\/strong\u003e battery can theoretically supply \u003cstrong\u003e4 amps for 1 hour\u003c\/strong\u003e or \u003cstrong\u003e1 amp for 4 hours\u003c\/strong\u003e before it’s fully discharged . However, \u003cstrong class=\"frg-ins2\"\u003ereal-world runtime depends on the device’s power draw, voltage, and operating conditions\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 class=\"frg-ins3\"\u003eCalculating Runtime\u003c\/h2\u003e\n\u003cp\u003e\u003cspan class=\"frg-ins4\"\u003eThe basic formula is:\u003cbr\u003e\u003cstrong\u003eRuntime (hours) = Battery Capacity (Ah) ÷ Device Current Draw (A)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"frg-ins5\"\u003eFor example:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eIf a tool draws \u003cstrong\u003e2 A\u003c\/strong\u003e at light load: 4 Ah ÷ 2 A = \u003cstrong class=\"frg-ins6\"\u003e2 hours\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eIf it draws \u003cstrong\u003e8 A\u003c\/strong\u003e under heavy load: 4 Ah ÷ 8 A = \u003cstrong class=\"frg-ins7\"\u003e0.5 hours\u003c\/strong\u003e (30 minutes)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"ROWA","offers":[{"title":"Default Title","offer_id":47648957857963,"sku":null,"price":14.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/5019\/5883\/files\/4.0ah.jpg?v=1786999959","url":"https:\/\/rowatools.com\/products\/4-0ah-battery","provider":"ROWA","version":"1.0","type":"link"}