{"product_id":"em8-battery-pack-qingnian-b-hidden-down-tube-36v-48v-li-ion","title":"EM8 Battery Pack – B Hidden Down-Tube 36V\/48V Li-ion","description":"\u003cp data-start=\"0\" data-end=\"400\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e: QingNian\u003cbr data-start=\"35\" data-end=\"38\"\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e: EM8\u003cbr data-start=\"56\" data-end=\"59\"\u003e\u003cstrong\u003eMounting Type\u003c\/strong\u003e: Fully hidden in the frame down-tube\u003cbr data-start=\"109\" data-end=\"112\"\u003e\u003cstrong\u003eRemoval \u0026amp; Locking\u003c\/strong\u003e: Down-taken system with double lock\u003cbr data-start=\"165\" data-end=\"168\"\u003e\u003cstrong\u003eBattery Cells\u003c\/strong\u003e: CN18650 Li-ion, up to 52 cells\u003cbr data-start=\"213\" data-end=\"216\"\u003e\u003cstrong\u003eVoltage \u0026amp; Capacity Range\u003c\/strong\u003e:\u003cbr data-start=\"241\" data-end=\"244\"\u003e• 36 V 16 Ah (27.5 – 42 V)\u003cbr data-start=\"270\" data-end=\"273\"\u003e• 48 V 13 Ah (36 – 54.6 V)\u003cbr data-start=\"299\" data-end=\"302\"\u003e\u003cstrong\u003eCharging Time\u003c\/strong\u003e: 5 – 6 h (3 A, DC 2.1 mm connector)\u003cbr data-start=\"351\" data-end=\"354\"\u003e\u003cstrong\u003eCertifications\u003c\/strong\u003e: CE, UN38.3\u003cbr data-start=\"380\" data-end=\"383\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e: ~3.4 kg\u003c\/p\u003e\n\u003ch2 data-start=\"407\" data-end=\"435\"\u003e\u003cstrong data-start=\"407\" data-end=\"433\"\u003eHelp me understand it:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-start=\"436\" data-end=\"1351\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-start=\"1262\" data-end=\"1351\" data-is-last-node=\"\"\u003e\n\u003cp data-start=\"1264\" data-end=\"1351\" data-is-last-node=\"\"\u003e\u003cstrong data-start=\"1264\" data-end=\"1283\"\u003eWeight ~3.4 kg:\u003c\/strong\u003e Lightweight design that doesn’t compromise handling or performance.\u003cbr\u003e______\u003cbr\u003e\u003cbr\u003e\u003cstrong data-end=\"1090\" data-start=\"1075\" style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 0.875rem;\"\u003ePros \u0026amp; Cons\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4 data-end=\"1121\" data-start=\"1092\"\u003e🔹 \u003cstrong data-end=\"1121\" data-start=\"1100\"\u003e36V 16Ah (576 Wh)\u003c\/strong\u003e\n\u003c\/h4\u003e\n\u003cp data-end=\"1132\" data-start=\"1123\"\u003e\u003cstrong data-end=\"1132\" data-start=\"1123\"\u003ePros:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"1402\" data-start=\"1133\"\u003e\n\u003cli data-end=\"1189\" data-start=\"1133\"\u003e\n\u003cp data-end=\"1189\" data-start=\"1135\"\u003eHigher \u003cstrong data-end=\"1157\" data-start=\"1142\"\u003eAh capacity\u003c\/strong\u003e = longer range at lower speeds.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1266\" data-start=\"1190\"\u003e\n\u003cp data-end=\"1266\" data-start=\"1192\"\u003eCompatible with \u003cstrong data-end=\"1230\" data-start=\"1208\"\u003elower power motors\u003c\/strong\u003e (250W–500W), increasing efficiency.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1344\" data-start=\"1267\"\u003e\n\u003cp data-end=\"1344\" data-start=\"1269\"\u003eLower \u003cstrong data-end=\"1299\" data-start=\"1275\"\u003estress on components\u003c\/strong\u003e, generally safer for prolonged battery life.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1402\" data-start=\"1345\"\u003e\n\u003cp data-end=\"1402\" data-start=\"1347\"\u003eOften \u003cstrong data-end=\"1383\" data-start=\"1353\"\u003eeasier to find spare parts\u003c\/strong\u003e in budget e-bikes.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"1413\" data-start=\"1404\"\u003e\u003cstrong data-end=\"1413\" data-start=\"1404\"\u003eCons:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"1582\" data-start=\"1414\"\u003e\n\u003cli data-end=\"1457\" data-start=\"1414\"\u003e\n\u003cp data-end=\"1457\" data-start=\"1416\"\u003eLess power output (watts = volts × amps).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1518\" data-start=\"1458\"\u003e\n\u003cp data-end=\"1518\" data-start=\"1460\"\u003eNot ideal for steep hills or \u003cstrong data-end=\"1517\" data-start=\"1489\"\u003eperformance-oriented use\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1582\" data-start=\"1519\"\u003e\n\u003cp data-end=\"1582\" data-start=\"1521\"\u003eSlightly lower total energy storage compared to the 48V pack.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 data-end=\"1613\" data-start=\"1584\"\u003e🔹 \u003cstrong data-end=\"1613\" data-start=\"1592\"\u003e48V 13Ah (624 Wh)\u003c\/strong\u003e\n\u003c\/h4\u003e\n\u003cp data-end=\"1624\" data-start=\"1615\"\u003e\u003cstrong data-end=\"1624\" data-start=\"1615\"\u003ePros:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"1889\" data-start=\"1625\"\u003e\n\u003cli data-end=\"1708\" data-start=\"1625\"\u003e\n\u003cp data-end=\"1708\" data-start=\"1627\"\u003eHigher \u003cstrong data-end=\"1655\" data-start=\"1634\"\u003epeak power output\u003c\/strong\u003e, better for \u003cstrong data-end=\"1707\" data-start=\"1668\"\u003eclimbing hills or high-speed riding\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1757\" data-start=\"1709\"\u003e\n\u003cp data-end=\"1757\" data-start=\"1711\"\u003eMore compatible with \u003cstrong data-end=\"1756\" data-start=\"1732\"\u003e500W to 1000W motors\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1844\" data-start=\"1758\"\u003e\n\u003cp data-end=\"1844\" data-start=\"1760\"\u003eSlightly higher \u003cstrong data-end=\"1794\" data-start=\"1776\"\u003eenergy storage\u003c\/strong\u003e = more power for acceleration or throttle bursts.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1889\" data-start=\"1845\"\u003e\n\u003cp data-end=\"1889\" data-start=\"1847\"\u003eIncreased \u003cstrong data-end=\"1888\" data-start=\"1857\"\u003eefficiency at higher speeds\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"1900\" data-start=\"1891\"\u003e\u003cstrong data-end=\"1900\" data-start=\"1891\"\u003eCons:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"2125\" data-start=\"1901\"\u003e\n\u003cli data-end=\"1977\" data-start=\"1901\"\u003e\n\u003cp data-end=\"1977\" data-start=\"1903\"\u003eSlightly lower Ah means shorter range if used at same power output as 36V.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2059\" data-start=\"1978\"\u003e\n\u003cp data-end=\"2059\" data-start=\"1980\"\u003eMay \u003cstrong data-end=\"2001\" data-start=\"1984\"\u003eincrease wear\u003c\/strong\u003e on components if paired with motors not designed for 48V.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2125\" data-start=\"2060\"\u003e\n\u003cp data-end=\"2125\" data-start=\"2062\"\u003e\u003cstrong data-end=\"2080\" data-start=\"2062\"\u003eMore expensive\u003c\/strong\u003e to replace due to higher voltage components.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cstrong data-end=\"2937\" data-start=\"2912\"\u003eExpert Advice Summary\u003c\/strong\u003e\n\u003cul data-end=\"3372\" data-start=\"2939\"\u003e\n\u003cli data-end=\"3151\" data-start=\"2939\"\u003e\n\u003cp data-end=\"2965\" data-start=\"2941\"\u003e\u003cstrong data-end=\"2961\" data-start=\"2941\"\u003eGo with 36V 16Ah\u003c\/strong\u003e if:\u003c\/p\u003e\n\u003cul data-end=\"3151\" data-start=\"2968\"\u003e\n\u003cli data-end=\"3066\" data-start=\"2968\"\u003e\n\u003cp data-end=\"3066\" data-start=\"2970\"\u003eYou prioritize \u003cstrong data-end=\"3001\" data-start=\"2985\"\u003elonger range\u003c\/strong\u003e, smoother rides, and a \u003cstrong data-end=\"3044\" data-start=\"3025\"\u003emore affordable\u003c\/strong\u003e, less powerful setup.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3151\" data-start=\"3069\"\u003e\n\u003cp data-end=\"3151\" data-start=\"3071\"\u003eYour motor is \u003cstrong data-end=\"3101\" data-start=\"3085\"\u003e500W or less\u003c\/strong\u003e and you're using pedal assist more than throttle.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3372\" data-start=\"3153\"\u003e\n\u003cp data-end=\"3178\" data-start=\"3155\"\u003e\u003cstrong data-end=\"3174\" data-start=\"3155\"\u003eChoose 48V 13Ah\u003c\/strong\u003e if:\u003c\/p\u003e\n\u003cul data-end=\"3372\" data-start=\"3181\"\u003e\n\u003cli data-end=\"3306\" data-start=\"3181\"\u003e\n\u003cp data-end=\"3306\" data-start=\"3183\"\u003eYou want \u003cstrong data-end=\"3217\" data-start=\"3192\"\u003estronger acceleration\u003c\/strong\u003e, better performance \u003cstrong data-end=\"3262\" data-start=\"3238\"\u003eon hills or off-road\u003c\/strong\u003e, and are using a \u003cstrong data-end=\"3305\" data-start=\"3280\"\u003emotor of 750W or more\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3372\" data-start=\"3309\"\u003e\n\u003cp data-end=\"3372\" data-start=\"3311\"\u003eYou ride at \u003cstrong data-end=\"3340\" data-start=\"3323\"\u003ehigher speeds\u003c\/strong\u003e or plan to carry heavier loads.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"436\" data-end=\"511\"\u003e\n\u003cp data-start=\"438\" data-end=\"511\"\u003e\u003cstrong data-start=\"438\" data-end=\"451\"\u003eQingNian:\u003c\/strong\u003e A specialized e-bike battery brand known for reliability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"512\" data-end=\"611\"\u003e\n\u003cp data-start=\"514\" data-end=\"611\"\u003e\u003cstrong data-start=\"514\" data-end=\"522\"\u003eEM8:\u003c\/strong\u003e Custom-designed to fit perfectly inside the EM8’s down-tube without external brackets.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"612\" data-end=\"726\"\u003e\n\u003cp data-start=\"614\" data-end=\"726\"\u003e\u003cstrong data-start=\"614\" data-end=\"640\"\u003eFully Hidden Mounting:\u003c\/strong\u003e Integrates seamlessly into the frame, preserving the bike’s aesthetics and balance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"727\" data-end=\"851\"\u003e\n\u003cp data-start=\"729\" data-end=\"851\"\u003e\u003cstrong data-start=\"729\" data-end=\"758\"\u003eDown-taken \u0026amp; Double Lock:\u003c\/strong\u003e Allows easy removal for charging or maintenance while providing enhanced theft protection.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"852\" data-end=\"963\"\u003e\n\u003cp data-start=\"854\" data-end=\"963\"\u003e\u003cstrong data-start=\"854\" data-end=\"884\"\u003eCN18650 Li-ion (52 cells):\u003c\/strong\u003e Combines high energy density with long cycle life for extended riding range.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"964\" data-end=\"1073\"\u003e\n\u003cp data-start=\"966\" data-end=\"1073\"\u003e\u003cstrong data-start=\"966\" data-end=\"994\"\u003e36 V 16 Ah \/ 48 V 13 Ah:\u003c\/strong\u003e Two capacity options to balance weight and range for different riding needs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1074\" data-end=\"1155\"\u003e\n\u003cp data-start=\"1076\" data-end=\"1155\"\u003e\u003cstrong data-start=\"1076\" data-end=\"1103\"\u003e5 – 6 h Charging (3 A):\u003c\/strong\u003e Fast recharge using a standard DC 2.1 mm charger.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1156\" data-end=\"1261\"\u003e\n\u003cp data-start=\"1158\" data-end=\"1261\"\u003e\u003cstrong data-start=\"1158\" data-end=\"1174\"\u003eCE \u0026amp; UN38.3:\u003c\/strong\u003e Certified to meet international electrical safety and battery transport regulations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e🔋 \u003cstrong\u003eBattery Comparison: 36V 16Ah vs 48V 13Ah\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003e36V 16Ah\u003c\/th\u003e\n\u003cth\u003e48V 13Ah\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e36 Volts\u003c\/td\u003e\n\u003ctd\u003e48 Volts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e27.5 – 42 V\u003c\/td\u003e\n\u003ctd\u003e36 – 54.6 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCapacity (Amp-hours)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16 Ah\u003c\/td\u003e\n\u003ctd\u003e13 Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Energy (Wh)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~576 Wh\u003c\/td\u003e\n\u003ctd\u003e~624 Wh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~3.4 kg\u003c\/td\u003e\n\u003ctd\u003e~3.4 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCharging Time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5–6 hours (3A)\u003c\/td\u003e\n\u003ctd\u003e5–6 hours (3A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCells Used\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCN18650 Li-ion, up to 52 cells\u003c\/td\u003e\n\u003ctd\u003eCN18650 Li-ion, up to 52 cells\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Twitter Bikes","offers":[{"title":"Endurance (36V)","offer_id":42745127075936,"sku":"45038448410785","price":3707.32,"currency_code":"NOK","in_stock":true},{"title":"Power (48V)","offer_id":42745141690464,"sku":"45038448443553","price":3707.32,"currency_code":"NOK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0667\/4658\/1088\/files\/1c0ea613-7588-4971-8c9b-b676647b7e74-Photoroom_ce0a3887-05b8-4baa-948a-c96c45620239.png?v=1778431678","url":"https:\/\/jabstore.com\/products\/em8-battery-pack-qingnian-b-hidden-down-tube-36v-48v-li-ion","provider":"BeltaifaJab","version":"1.0","type":"link"}