{"product_id":"newqingnian-battery-pack","title":"EC1 \/EM5 \/EM6  Battery Pack – B Hidden Down-Tube 36V\/48V Li-ion","description":"\u003cp data-end=\"784\" data-start=\"232\"\u003e\u003cstrong data-end=\"242\" data-start=\"232\"\u003eBrand:\u003c\/strong\u003e NewQingNian\u003cbr data-end=\"257\" data-start=\"254\"\u003e\u003cstrong data-end=\"275\" data-start=\"257\"\u003eCompatibility:\u003c\/strong\u003e EC1 \/ EM5 \/ EM6\u003cbr data-end=\"300\" data-start=\"297\"\u003e\u003cstrong data-end=\"318\" data-start=\"300\"\u003eMounting Type:\u003c\/strong\u003e Fully hidden in the frame down-tube\u003cbr data-end=\"357\" data-start=\"354\"\u003e\u003cstrong data-end=\"379\" data-start=\"357\"\u003eRemoval \u0026amp; Locking:\u003c\/strong\u003e Down-taken system with double lock\u003cbr data-end=\"417\" data-start=\"414\"\u003e\u003cstrong data-end=\"435\" data-start=\"417\"\u003eBattery Cells:\u003c\/strong\u003e Samsung 21700 Li-ion, up to 40 cells (10S4P for 36V \/ 13S3P for 48V)\u003cbr data-end=\"507\" data-start=\"504\"\u003e\u003cstrong data-end=\"536\" data-start=\"507\"\u003eVoltage \u0026amp; Capacity Range:\u003c\/strong\u003e\u003cbr data-end=\"539\" data-start=\"536\"\u003e• 36 V 20 Ah (27.5 – 42 V) – ~720 Wh\u003cbr data-end=\"578\" data-start=\"575\"\u003e• 48 V 15 Ah (36 – 54.6 V) – ~720 Wh\u003cbr data-end=\"617\" data-start=\"614\"\u003e\u003cstrong data-end=\"635\" data-start=\"617\"\u003eCharging Time:\u003c\/strong\u003e\u003cbr data-end=\"638\" data-start=\"635\"\u003e• 36V 20Ah: 6–7 h (3A, DC 2.1 mm connector)\u003cbr data-end=\"684\" data-start=\"681\"\u003e• 48V 15Ah: 5–6 h (3A, DC 2.1 mm connector)\u003cbr data-end=\"730\" data-start=\"727\"\u003e\u003cstrong data-end=\"749\" data-start=\"730\"\u003eCertifications:\u003c\/strong\u003e CE, UN38.3\u003cbr data-end=\"763\" data-start=\"760\"\u003e\u003cstrong data-end=\"774\" data-start=\"763\"\u003eWeight:\u003c\/strong\u003e ~3.9 kg\u003c\/p\u003e\n\u003cp data-end=\"819\" data-start=\"791\"\u003e\u003cstrong data-end=\"817\" data-start=\"791\"\u003eHelp me understand it:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"932\" data-start=\"821\"\u003eWeight ~3.9 kg: Balanced energy capacity with manageable weight for both urban commuting and off-road riding.\u003c\/p\u003e\n\u003ch2 data-end=\"957\" data-start=\"939\"\u003e\u003cstrong data-end=\"957\" data-start=\"942\"\u003ePros \u0026amp; Cons\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-end=\"986\" data-start=\"959\"\u003e🔹 \u003cstrong data-end=\"984\" data-start=\"962\"\u003e36V 20Ah (~720 Wh)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"999\" data-start=\"988\"\u003e\u003cstrong data-end=\"997\" data-start=\"988\"\u003ePros:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"1232\" data-start=\"1000\"\u003e\n\u003cli data-end=\"1057\" data-start=\"1000\"\u003e\n\u003cp data-end=\"1057\" data-start=\"1002\"\u003eHigher Ah capacity = longer range at moderate speeds.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1113\" data-start=\"1058\"\u003e\n\u003cp data-end=\"1113\" data-start=\"1060\"\u003eMore efficient with lower power motors (250W–500W).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1169\" data-start=\"1114\"\u003e\n\u003cp data-end=\"1169\" data-start=\"1116\"\u003eLower stress on components, extending battery life.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1232\" data-start=\"1170\"\u003e\n\u003cp data-end=\"1232\" data-start=\"1172\"\u003eIdeal for endurance-focused riders and pedal-assist usage.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"1245\" data-start=\"1234\"\u003e\u003cstrong data-end=\"1243\" data-start=\"1234\"\u003eCons:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"1356\" data-start=\"1246\"\u003e\n\u003cli data-end=\"1283\" data-start=\"1246\"\u003e\n\u003cp data-end=\"1283\" data-start=\"1248\"\u003eLower peak power compared to 48V.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1356\" data-start=\"1284\"\u003e\n\u003cp data-end=\"1356\" data-start=\"1286\"\u003eLess suitable for aggressive hill climbs or heavy load acceleration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"1390\" data-start=\"1363\"\u003e🔹 \u003cstrong data-end=\"1388\" data-start=\"1366\"\u003e48V 15Ah (~720 Wh)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"1403\" data-start=\"1392\"\u003e\u003cstrong data-end=\"1401\" data-start=\"1392\"\u003ePros:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"1659\" data-start=\"1404\"\u003e\n\u003cli data-end=\"1483\" data-start=\"1404\"\u003e\n\u003cp data-end=\"1483\" data-start=\"1406\"\u003eHigher peak power output = better for climbing hills and high-speed riding.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1530\" data-start=\"1484\"\u003e\n\u003cp data-end=\"1530\" data-start=\"1486\"\u003eWorks well with motors from 500W to 1000W.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1598\" data-start=\"1531\"\u003e\n\u003cp data-end=\"1598\" data-start=\"1533\"\u003eStronger acceleration and better performance under heavy loads.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1659\" data-start=\"1599\"\u003e\n\u003cp data-end=\"1659\" data-start=\"1601\"\u003eMore efficient at maintaining speed on long, fast rides.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"1672\" data-start=\"1661\"\u003e\u003cstrong data-end=\"1670\" data-start=\"1661\"\u003eCons:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"1875\" data-start=\"1673\"\u003e\n\u003cli data-end=\"1752\" data-start=\"1673\"\u003e\n\u003cp data-end=\"1752\" data-start=\"1675\"\u003eLower Ah means slightly shorter range at the same power consumption as 36V.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1807\" data-start=\"1753\"\u003e\n\u003cp data-end=\"1807\" data-start=\"1755\"\u003eCan increase wear on components not rated for 48V.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1875\" data-start=\"1808\"\u003e\n\u003cp data-end=\"1875\" data-start=\"1810\"\u003eSlightly more expensive to replace due to higher voltage parts.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-end=\"1912\" data-start=\"1882\"\u003e\u003cstrong data-end=\"1910\" data-start=\"1885\"\u003eExpert Advice Summary\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-end=\"1940\" data-start=\"1914\"\u003eGo with \u003cstrong data-end=\"1934\" data-start=\"1922\"\u003e36V 20Ah\u003c\/strong\u003e if:\u003c\/p\u003e\n\u003cul data-end=\"2088\" data-start=\"1941\"\u003e\n\u003cli data-end=\"2012\" data-start=\"1941\"\u003e\n\u003cp data-end=\"2012\" data-start=\"1943\"\u003eYou prioritize longer range, smoother rides, and energy efficiency.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2088\" data-start=\"2013\"\u003e\n\u003cp data-end=\"2088\" data-start=\"2015\"\u003eYour motor is 500W or less and you use pedal assist more than throttle.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"2115\" data-start=\"2090\"\u003eChoose \u003cstrong data-end=\"2109\" data-start=\"2097\"\u003e48V 15Ah\u003c\/strong\u003e if:\u003c\/p\u003e\n\u003cul data-end=\"2273\" data-start=\"2116\"\u003e\n\u003cli data-end=\"2213\" data-start=\"2116\"\u003e\n\u003cp data-end=\"2213\" data-start=\"2118\"\u003eYou want stronger acceleration, better climbing ability, and responsive off-road performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2273\" data-start=\"2214\"\u003e\n\u003cp data-end=\"2273\" data-start=\"2216\"\u003eYou ride at higher speeds or often carry heavier loads.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"2989\" data-start=\"2280\"\u003e\u003cstrong data-end=\"2296\" data-start=\"2280\"\u003eNewQingNian:\u003c\/strong\u003e A specialized e-bike battery brand known for reliable, high-performance packs.\u003cbr data-end=\"2378\" data-start=\"2375\"\u003e\u003cstrong data-end=\"2418\" data-start=\"2378\"\u003eEC1 \/ EM5new \/ EM6new Compatibility:\u003c\/strong\u003e Designed to fit perfectly inside the frame’s down-tube without external brackets.\u003cbr data-end=\"2503\" data-start=\"2500\"\u003e\u003cstrong data-end=\"2529\" data-start=\"2503\"\u003eFully Hidden Mounting:\u003c\/strong\u003e Maintains the bike’s clean look and balanced handling.\u003cbr data-end=\"2587\" data-start=\"2584\"\u003e\u003cstrong data-end=\"2616\" data-start=\"2587\"\u003eDown-taken \u0026amp; Double Lock:\u003c\/strong\u003e Quick removal for charging or maintenance with enhanced theft protection.\u003cbr data-end=\"2693\" data-start=\"2690\"\u003e\u003cstrong data-end=\"2729\" data-start=\"2693\"\u003eSamsung 21700 Li-ion (40 cells):\u003c\/strong\u003e High energy density and long cycle life for extended range.\u003cbr data-end=\"2792\" data-start=\"2789\"\u003e\u003cstrong data-end=\"2820\" data-start=\"2792\"\u003e36 V 20 Ah \/ 48 V 15 Ah:\u003c\/strong\u003e Two balanced capacity options to suit endurance or power-oriented riders.\u003cbr data-end=\"2897\" data-start=\"2894\"\u003e\u003cstrong data-end=\"2913\" data-start=\"2897\"\u003eCE \u0026amp; UN38.3:\u003c\/strong\u003e Certified for international electrical safety and safe battery transport.\u003c\/p\u003e\n\u003cp data-end=\"3045\" data-start=\"2996\"\u003e🔋 \u003cstrong data-end=\"3043\" data-start=\"2999\"\u003eBattery Comparison: 36V 20Ah vs 48V 15Ah\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"_tableContainer_16hzy_1\"\u003e\n\u003cdiv class=\"_tableWrapper_16hzy_14 group flex w-fit flex-col-reverse\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\" data-end=\"3764\" data-start=\"3046\"\u003e\n\u003cthead data-end=\"3124\" data-start=\"3046\"\u003e\n\u003ctr data-end=\"3124\" data-start=\"3046\"\u003e\n\u003cth data-col-size=\"sm\" data-end=\"3069\" data-start=\"3046\"\u003eSpecification\u003c\/th\u003e\n\u003cth data-col-size=\"sm\" data-end=\"3096\" data-start=\"3069\"\u003e36V 20Ah\u003c\/th\u003e\n\u003cth data-col-size=\"sm\" data-end=\"3124\" data-start=\"3096\"\u003e48V 15Ah\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-end=\"3764\" data-start=\"3204\"\u003e\n\u003ctr data-end=\"3282\" data-start=\"3204\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"3227\" data-start=\"3204\"\u003eNominal Voltage\u003c\/td\u003e\n\u003ctd data-end=\"3254\" data-start=\"3227\" data-col-size=\"sm\"\u003e36 Volts\u003c\/td\u003e\n\u003ctd data-end=\"3282\" data-start=\"3254\" data-col-size=\"sm\"\u003e48 Volts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"3361\" data-start=\"3283\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"3306\" data-start=\"3283\"\u003eVoltage Range\u003c\/td\u003e\n\u003ctd data-end=\"3333\" data-start=\"3306\" data-col-size=\"sm\"\u003e27.5 – 42 V\u003c\/td\u003e\n\u003ctd data-end=\"3361\" data-start=\"3333\" data-col-size=\"sm\"\u003e36 – 54.6 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"3440\" data-start=\"3362\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"3385\" data-start=\"3362\"\u003eCapacity (Ah)\u003c\/td\u003e\n\u003ctd data-end=\"3412\" data-start=\"3385\" data-col-size=\"sm\"\u003e20 Ah\u003c\/td\u003e\n\u003ctd data-end=\"3440\" data-start=\"3412\" data-col-size=\"sm\"\u003e15 Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"3519\" data-start=\"3441\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"3464\" data-start=\"3441\"\u003eTotal Energy (Wh)\u003c\/td\u003e\n\u003ctd data-end=\"3491\" data-start=\"3464\" data-col-size=\"sm\"\u003e~720 Wh\u003c\/td\u003e\n\u003ctd data-end=\"3519\" data-start=\"3491\" data-col-size=\"sm\"\u003e~720 Wh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"3598\" data-start=\"3520\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"3543\" data-start=\"3520\"\u003eWeight\u003c\/td\u003e\n\u003ctd data-end=\"3570\" data-start=\"3543\" data-col-size=\"sm\"\u003e~3.9 kg\u003c\/td\u003e\n\u003ctd data-end=\"3598\" data-start=\"3570\" data-col-size=\"sm\"\u003e~3.9 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"3677\" data-start=\"3599\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"3622\" data-start=\"3599\"\u003eCharging Time\u003c\/td\u003e\n\u003ctd data-end=\"3649\" data-start=\"3622\" data-col-size=\"sm\"\u003e6–7 hours (3A)\u003c\/td\u003e\n\u003ctd data-end=\"3677\" data-start=\"3649\" data-col-size=\"sm\"\u003e5–6 hours (3A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-end=\"3764\" data-start=\"3678\"\u003e\n\u003ctd data-col-size=\"sm\" data-end=\"3701\" data-start=\"3678\"\u003eCells Used\u003c\/td\u003e\n\u003ctd data-end=\"3732\" data-start=\"3701\" data-col-size=\"sm\"\u003eSamsung 21700 Li-ion (10S4P)\u003c\/td\u003e\n\u003ctd data-end=\"3764\" data-start=\"3732\" data-col-size=\"sm\"\u003eSamsung 21700 Li-ion (13S3P)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"_tableContainer_16hzy_1\"\u003e\u003cbr\u003e\u003c\/div\u003e","brand":"Twitter Bikes","offers":[{"title":"Endurance (36V)","offer_id":42745113018464,"sku":"45038447198369","price":3707.32,"currency_code":"NOK","in_stock":true},{"title":"Power (48V)","offer_id":42745113280608,"sku":"45038447231137","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_3a5ec4e8-2f3e-45bd-8cb3-0b0c5e6d42db.png?v=1778431531","url":"https:\/\/jabstore.com\/products\/newqingnian-battery-pack","provider":"BeltaifaJab","version":"1.0","type":"link"}