{"product_id":"newqingnian-battery-pack","title":"EC1 \/EM5 \/EM6  Battery Pack – B Hidden Down-Tube 36V\/48V Li-ion","description":"\u003clink rel=\"preconnect\" href=\"https:\/\/fonts.googleapis.com\"\u003e\u003clink href=\"https:\/\/fonts.googleapis.com\/css2?family=Inter:wght@400;600\u0026amp;family=Montserrat:wght@700\u0026amp;display=swap\" rel=\"stylesheet\"\u003e\n\u003cdiv style=\"font-family:'Inter', sans-serif;color:#334155;line-height:1.7;max-width:900px;margin:0 auto;padding:20px;background:#fff;\"\u003e\n  \u003cdiv style=\"margin-bottom:24px;\"\u003e\n    \u003cspan style=\"font-family:'Inter', sans-serif;font-weight:600;font-size:11px;color:#767676;text-transform:uppercase;letter-spacing:2px;\"\u003eE-Bike \/ Battery Pack\u003c\/span\u003e\n    \u003ch2 style=\"font-family:'Montserrat', sans-serif;font-weight:700;font-size:32px;text-transform:uppercase;color:#000;margin:8px 0 16px 0;letter-spacing:-.5px;\"\u003eEC1 \/ EM5 \/ EM6 Battery Pack — Hidden Down-Tube\u003c\/h2\u003e\n    \u003cp style=\"font-family:'Inter', sans-serif;font-size:14.5px;color:#444;max-width:800px;margin:0 0 24px 0;\"\u003eA fully hidden down-tube battery pack designed to fit the \u003cstrong\u003eEC1, EM5, and EM6\u003c\/strong\u003e e-bike frames. Built by NewQingNian with up to 40 Samsung 21700 Li-ion cells for ~720 Wh, it integrates inside the down-tube with no external brackets for a clean look and balanced handling. A down-taken system with double lock allows quick removal for charging while adding theft protection, and CE \/ UN38.3 certification keeps it compliant for safe transport. Choose 36 V 20 Ah for endurance or 48 V 15 Ah for power.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"border-top:1px solid #e5e7eb;border-bottom:1px solid #e5e7eb;padding:24px 0;margin-bottom:32px;\"\u003e\n    \u003ch4 style=\"font-family:'Montserrat', sans-serif;font-weight:700;font-size:14px;text-transform:uppercase;letter-spacing:1px;margin:0 0 16px 0;color:#000\"\u003eKey Features\u003c\/h4\u003e\n    \u003cul style=\"list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:12px;\"\u003e\n      \u003cli style=\"font-family:'Inter', sans-serif;font-size:13.5px;color:#333;position:relative;padding-left:20px;\"\u003e\n\u003cspan style=\"position:absolute;left:0;color:#e11d48;font-weight:bold;\"\u003e▪\u003c\/span\u003e \u003cstrong\u003eFits EC1 \/ EM5 \/ EM6 Frames\u003c\/strong\u003e — designed to sit inside the down-tube with no external brackets.\u003c\/li\u003e\n      \u003cli style=\"font-family:'Inter', sans-serif;font-size:13.5px;color:#333;position:relative;padding-left:20px;\"\u003e\n\u003cspan style=\"position:absolute;left:0;color:#e11d48;font-weight:bold;\"\u003e▪\u003c\/span\u003e \u003cstrong\u003eSamsung 21700 Li-ion Cells\u003c\/strong\u003e — up to 40 cells (10S4P for 36 V \/ 13S3P for 48 V) for high energy density and long cycle life.\u003c\/li\u003e\n      \u003cli style=\"font-family:'Inter', sans-serif;font-size:13.5px;color:#333;position:relative;padding-left:20px;\"\u003e\n\u003cspan style=\"position:absolute;left:0;color:#e11d48;font-weight:bold;\"\u003e▪\u003c\/span\u003e \u003cstrong\u003eDual Voltage Options\u003c\/strong\u003e — 36 V 20 Ah (~720 Wh) for endurance or 48 V 15 Ah (~720 Wh) for power and climbing.\u003c\/li\u003e\n      \u003cli style=\"font-family:'Inter', sans-serif;font-size:13.5px;color:#333;position:relative;padding-left:20px;\"\u003e\n\u003cspan style=\"position:absolute;left:0;color:#e11d48;font-weight:bold;\"\u003e▪\u003c\/span\u003e \u003cstrong\u003eFully Hidden Mounting\u003c\/strong\u003e — maintains the bike's clean look and balanced handling.\u003c\/li\u003e\n      \u003cli style=\"font-family:'Inter', sans-serif;font-size:13.5px;color:#333;position:relative;padding-left:20px;\"\u003e\n\u003cspan style=\"position:absolute;left:0;color:#e11d48;font-weight:bold;\"\u003e▪\u003c\/span\u003e \u003cstrong\u003eDown-Taken System \u0026amp; Double Lock\u003c\/strong\u003e — quick removal for charging or maintenance with enhanced theft protection.\u003c\/li\u003e\n      \u003cli style=\"font-family:'Inter', sans-serif;font-size:13.5px;color:#333;position:relative;padding-left:20px;\"\u003e\n\u003cspan style=\"position:absolute;left:0;color:#e11d48;font-weight:bold;\"\u003e▪\u003c\/span\u003e \u003cstrong\u003eCE \u0026amp; UN38.3 Certified\u003c\/strong\u003e — certified for international electrical safety and safe battery transport.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\n\n  \u003cdiv style=\"margin-bottom:40px;\"\u003e\n    \u003ch4 style=\"font-family:'Montserrat', sans-serif;font-weight:700;font-size:14px;text-transform:uppercase;letter-spacing:1px;margin:0 0 16px 0;color:#000\"\u003eSpecifications\u003c\/h4\u003e\n    \u003cdiv style=\"border-top:1px solid #000;\"\u003e\u003ctable style=\"width:100%;border-collapse:collapse;font-size:13px;text-align:left;\"\u003e\u003ctbody\u003e\n      \u003ctr style=\"border-bottom:1px solid #e5e7eb;\"\u003e\n\u003ctd style=\"padding:14px 0;font-family:'Inter', sans-serif;font-weight:600;color:#000;width:30%;text-transform:uppercase;letter-spacing:.5px;vertical-align:top;\"\u003eBrand\u003c\/td\u003e\n\u003ctd style=\"padding:14px 0 14px 20px;font-family:'Inter', sans-serif;color:#444;width:70%;vertical-align:top;\"\u003eNewQingNian\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"border-bottom:1px solid #e5e7eb;\"\u003e\n\u003ctd style=\"padding:14px 0;font-family:'Inter', sans-serif;font-weight:600;color:#000;width:30%;text-transform:uppercase;letter-spacing:.5px;vertical-align:top;\"\u003eCompatibility\u003c\/td\u003e\n\u003ctd style=\"padding:14px 0 14px 20px;font-family:'Inter', sans-serif;color:#444;width:70%;vertical-align:top;\"\u003eEC1 \/ EM5 \/ EM6 e-bike frames\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"border-bottom:1px solid #e5e7eb;\"\u003e\n\u003ctd style=\"padding:14px 0;font-family:'Inter', sans-serif;font-weight:600;color:#000;width:30%;text-transform:uppercase;letter-spacing:.5px;vertical-align:top;\"\u003eMounting Type\u003c\/td\u003e\n\u003ctd style=\"padding:14px 0 14px 20px;font-family:'Inter', sans-serif;color:#444;width:70%;vertical-align:top;\"\u003eFully hidden in the frame down-tube\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"border-bottom:1px solid #e5e7eb;\"\u003e\n\u003ctd style=\"padding:14px 0;font-family:'Inter', sans-serif;font-weight:600;color:#000;width:30%;text-transform:uppercase;letter-spacing:.5px;vertical-align:top;\"\u003eRemoval \u0026amp; Locking\u003c\/td\u003e\n\u003ctd style=\"padding:14px 0 14px 20px;font-family:'Inter', sans-serif;color:#444;width:70%;vertical-align:top;\"\u003eDown-taken system with double lock\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"border-bottom:1px solid #e5e7eb;\"\u003e\n\u003ctd style=\"padding:14px 0;font-family:'Inter', sans-serif;font-weight:600;color:#000;width:30%;text-transform:uppercase;letter-spacing:.5px;vertical-align:top;\"\u003eBattery Cells\u003c\/td\u003e\n\u003ctd style=\"padding:14px 0 14px 20px;font-family:'Inter', sans-serif;color:#444;width:70%;vertical-align:top;\"\u003eSamsung 21700 Li-ion, up to 40 cells (10S4P for 36 V \/ 13S3P for 48 V)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"border-bottom:1px solid #e5e7eb;\"\u003e\n\u003ctd style=\"padding:14px 0;font-family:'Inter', sans-serif;font-weight:600;color:#000;width:30%;text-transform:uppercase;letter-spacing:.5px;vertical-align:top;\"\u003eChemistry\u003c\/td\u003e\n\u003ctd style=\"padding:14px 0 14px 20px;font-family:'Inter', sans-serif;color:#444;width:70%;vertical-align:top;\"\u003eLithium-ion (Li-ion)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"border-bottom:1px solid #e5e7eb;\"\u003e\n\u003ctd style=\"padding:14px 0;font-family:'Inter', sans-serif;font-weight:600;color:#000;width:30%;text-transform:uppercase;letter-spacing:.5px;vertical-align:top;\"\u003eEndurance Option\u003c\/td\u003e\n\u003ctd style=\"padding:14px 0 14px 20px;font-family:'Inter', sans-serif;color:#444;width:70%;vertical-align:top;\"\u003e36 V 20 Ah (27.5–42 V) — ~720 Wh\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"border-bottom:1px solid #e5e7eb;\"\u003e\n\u003ctd style=\"padding:14px 0;font-family:'Inter', sans-serif;font-weight:600;color:#000;width:30%;text-transform:uppercase;letter-spacing:.5px;vertical-align:top;\"\u003ePower Option\u003c\/td\u003e\n\u003ctd style=\"padding:14px 0 14px 20px;font-family:'Inter', sans-serif;color:#444;width:70%;vertical-align:top;\"\u003e48 V 15 Ah (36–54.6 V) — ~720 Wh\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"border-bottom:1px solid #e5e7eb;\"\u003e\n\u003ctd style=\"padding:14px 0;font-family:'Inter', sans-serif;font-weight:600;color:#000;width:30%;text-transform:uppercase;letter-spacing:.5px;vertical-align:top;\"\u003eCharging Time\u003c\/td\u003e\n\u003ctd style=\"padding:14px 0 14px 20px;font-family:'Inter', sans-serif;color:#444;width:70%;vertical-align:top;\"\u003e36V 20Ah: 6–7 h  ·  48V 15Ah: 5–6 h (3A, DC 2.1 mm connector)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"border-bottom:1px solid #e5e7eb;\"\u003e\n\u003ctd style=\"padding:14px 0;font-family:'Inter', sans-serif;font-weight:600;color:#000;width:30%;text-transform:uppercase;letter-spacing:.5px;vertical-align:top;\"\u003eCertifications\u003c\/td\u003e\n\u003ctd style=\"padding:14px 0 14px 20px;font-family:'Inter', sans-serif;color:#444;width:70%;vertical-align:top;\"\u003eCE, UN38.3\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr style=\"border-bottom:1px solid #e5e7eb;\"\u003e\n\u003ctd style=\"padding:14px 0;font-family:'Inter', sans-serif;font-weight:600;color:#000;width:30%;text-transform:uppercase;letter-spacing:.5px;vertical-align:top;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"padding:14px 0 14px 20px;font-family:'Inter', sans-serif;color:#444;width:70%;vertical-align:top;\"\u003eApprox. 3.9 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv style=\"background:#fafafa;border:1px solid #e5e7eb;border-radius:8px;padding:24px;margin-bottom:32px;\"\u003e\n    \u003ch4 style=\"font-family:'Montserrat', sans-serif;font-weight:700;font-size:13px;text-transform:uppercase;letter-spacing:1px;margin:0 0 12px 0;color:#000;\"\u003eWhat's in the Box\u003c\/h4\u003e\n    \u003cul style=\"margin:0;padding-left:20px;font-family:'Inter', sans-serif;font-size:13px;color:#444;line-height:1.8;\"\u003e\n      \u003cli\u003eEC1 \/ EM5 \/ EM6 hidden down-tube battery pack\u003c\/li\u003e\n      \u003cli\u003eCharger (3A, DC 2.1 mm connector)\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n  \u003cp style=\"font-family:'Inter', sans-serif;font-size:11px;color:#888;text-align:center;margin:40px 0 0 0;\"\u003eWe reserve the right to make changes to product information at any time without prior notice, including specifications, models, colors, and materials.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Twitter Bikes","offers":[{"title":"Endurance (36V)","offer_id":50594193277067,"sku":"45038447198369","price":849.99,"currency_code":"USD","in_stock":true},{"title":"Power (48V)","offer_id":50594198552715,"sku":"45038447231137","price":849.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/9822\/9899\/files\/1c0ea613-7588-4971-8c9b-b676647b7e74-Photoroom_3a5ec4e8-2f3e-45bd-8cb3-0b0c5e6d42db.png?v=1791071508","url":"https:\/\/omenira.com\/products\/newqingnian-battery-pack","provider":"Omenira","version":"1.0","type":"link"}