{"product_id":"aimjin-hailong-dp9-downtube-ebike-battery-36v-48v-52v","title":"48V Battery 36V Hailong battery","description":"\u003ch1\u003eaimjin Hailong DP-9 Downtube Lithium-Ion E-Bike Battery Pack (36V \/ 48V \/ 52V) – High-Capacity 18650 Cell Matrix with Integrated Smart BMS \u0026amp; USB Charging Port\u003c\/h1\u003e\n\u003cp\u003eUpgrade your electric bicycle's range and raw output with the \u003cb\u003eaimjin Hailong DP-9 Downtube Lithium-Ion Battery Pack\u003c\/b\u003e. Designed for maximum frame compatibility and clean aesthetic integration, the Hailong DP-9 casing mounts directly to standard water bottle boss mounts on your bike's downtube, offering exceptional weight distribution and easy key-locked removal.\u003c\/p\u003e\n\u003cp\u003eEngineered with high-density 18650 lithium-ion cells and protected by an advanced \u003cb\u003e30A Continuous \/ 60A Peak Smart BMS\u003c\/b\u003e, this battery delivers linear power flow across demanding hills and high-speed commutes. Featuring an \u003cb\u003eintegrated 5V USB output port\u003c\/b\u003e, the Hailong DP-9 also doubles as a mobile power bank to charge your smartphone, GPS, or bike lights while on the move.\u003c\/p\u003e\n\u003ch3\u003e⚠️ Technical Verification Note\u003c\/h3\u003e\n\u003cblockquote\u003e\n\u003cp\u003e\u003cb\u003eCAPACITY \u0026amp; MATRIX SPECIFICATION ADVISORY:\u003c\/b\u003e Standard Hailong DP-9 casings accommodate specific cell arrays (such as 10S3P, 10S4P, or 10S5P). Depending on the specific voltage selected (36V, 48V, or 52V) and cell chemistry, physical pack capacities typically range between 12Ah and 20Ah using premium 18650 cells. Please review controller amperage limits to select the proper voltage variant for your drive system.\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003ch3\u003e🚀 Key High-Performance Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eUniversal Downtube Hailong DP-9 Casing:\u003c\/b\u003e Measures \u003cb\u003e360mm x 90mm x 110mm\u003c\/b\u003e to fit cleanly inside most standard triangular frame geometry with bottle mount alignment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eMulti-Voltage Options (36V \/ 48V \/ 52V):\u003c\/b\u003e Select the exact voltage match for your motor controller system—36V for daily urban commuting, 48V for standard all-around performance, or 52V for maximum speed and reduced voltage sag.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eIntegrated 30A Continuous BMS Protection:\u003c\/b\u003e Built-in Smart Battery Management System continuously monitors cell balancing and protects against overcharge, over-discharge, overcurrent, thermal spikes, and short circuits.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eConvenient 5V USB Device Charging:\u003c\/b\u003e Built-in USB output port allows you to power external accessories directly from your main drive battery while riding.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eQuick-Release Key Lock Mount:\u003c\/b\u003e Includes a reinforced mounting bracket with a dual-key anti-theft locking mechanism for effortless extraction and charging indoors.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e📊 Technical Specifications Matrix \u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification Parameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eaimjin Hailong DP-9 Battery Specifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eBrand Designation\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eaimjin\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eCasing Style \u0026amp; Model\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eHailong DP-9 (Polyester Outer Shell)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eVoltage Configurations\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003e36V \/ 48V \/ 52V Nominal\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eCell Format\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eGrade A High-Density 18650 Lithium-Ion\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eMax Constant Discharge\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003e30A Continuous\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003ePeak Instantaneous Discharge\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003e60A Peak\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003ePhysical Dimensions\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003e360 mm x 90 mm x 110 mm\u003c\/b\u003e (14.1\" L x 3.5\" W x 4.3\" H)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003ePack Weight\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eApprox. 4,000 g (8.8 lbs)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eAuxiliary Output\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e5V USB Charging Port\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eCharge Temperature Range\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e-15°C to 65°C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eDischarge Temperature Range\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e-15°C to 65°C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eCycle Life Expectancy\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003e1,000+ Full Discharge Cycles\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eSafety Certification\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eCE Certified\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eHazardous Chemical Registry\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003ccode\u003eHigh-concerned chemical: None\u003c\/code\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv class=\"detailmodule_html\"\u003e\n\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sb2ce01edf08b41e184b07a4d25f54330T.jpg\"\u003e\u003c\/p\u003e\n\u003ch3\u003e⚙️ Installation \u0026amp; Operation Guidelines\u003c\/h3\u003e\n\u003col start=\"1\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eMounting the Rail:\u003c\/b\u003e Secure the Hailong base bracket to your downtube's bottle cage threads using the provided stainless steel hardware.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eLocking the Pack:\u003c\/b\u003e Align the DP-9 battery slots with the base rail, slide down into place until seated, and turn the key to lock the pack securely.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eCharging Routine:\u003c\/b\u003e Always connect the charger plug to the battery charging socket \u003ci\u003ebefore\u003c\/i\u003e plugging the charger into the AC wall outlet. Use a dedicated CC\/CV lithium charger matching your pack's voltage (e.g., 54.6V charger for 48V pack).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003e📦 Package Contents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e1 x aimjin Hailong DP-9 Downtube Lithium-Ion Battery Pack\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e1 x Lock-In Base Mounting Rail Interface\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e2 x Safety Keys\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e1 x Discharge Connector Cable\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eUpgrade your e-bike range today with reliable Hailong power. Select your voltage specification below, click Add to Cart, and enjoy fast, free shipping on your order!\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cbr\u003e\u003cbr\u003e36\/48\/52V  30Ah-50Ah Specification :\u003cbr\u003e\u003cbr\u003eBattery: built-in Samsung INR 18650\u003cbr\u003eMatrix mode: \u003cbr\u003e36\/48\/52V:30Ah=10S3P  40Ah=10S4P  50Ah=10S5P\u003cbr\u003eNormal Voltage: 36\/48\/52V\u003cbr\u003eRated Capacity:30Ah-50Ah\u003cbr\u003eBattery size:360*90*110mm\u003cbr\u003eMax Constant Discharge Current:30A\u003cbr\u003ePeak current:60A\u003cbr\u003eCharge voltage:54.6V\u003cbr\u003eDischarge cut-off voltage:25V-39V-40V\u003cbr\u003eWay of Charge: CC\/CV\u003cbr\u003eCycle Life:1000 times\u003cbr\u003eCharge Temperature:-15-65℃\u003cbr\u003eDischarge Temperature:-15-65℃\u003cbr\u003eProtection Function: Overcharge, Overdischarge, Overcurrent, Short circuit, Balance48V Battery 52V 36V ebike Battery Hailong Downtube BMS 18650 Cell rechargeable Lithium Battery USB for Electric bicycle\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv style=\"font-family: 'Open Sans', Roboto, Arial, Helvetica, sans-serif, SimSun; font-size: 14px; font-weight: 400; letter-spacing: normal; text-align: start; white-space: normal; color: rgb(34, 34, 34); margin: 0px; padding: 0px; box-sizing: border-box;\" align=\"start\"\u003e\n\u003cdiv style=\"margin: 0px; padding: 0px; max-height: 1200px; overflow: hidden; position: relative; box-sizing: border-box;\" class=\"extend--content--DlnAngg\"\u003e\n\u003cdiv style=\"margin: 0px; padding: 0px; box-sizing: border-box;\"\u003e\n\u003cdiv id=\"product-description\" style=\"margin: 0px; padding: 0px; max-width: 944px; overflow: hidden; position: relative; box-sizing: border-box;\" class=\"description--product-description--nxRv0lW\"\u003e\n\u003cdiv style=\"margin: 0px; padding: 0px; box-sizing: border-box;\" class=\"description--origin-part--SsZJoGC\"\u003e\n\u003cdiv style=\"margin: 0px; padding: 0px; box-sizing: content-box;\"\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sfc82b7980d9349de999cc8feb57c7b99P.jpg\" alt=\"aimjin Hailong DP-9 48V 52V 36V downtube lithium ebike battery with USB port  Hailong DP-9 ebike battery mounted on bicycle downtube with key lock system\" style=\"margin-bottom: 16px; float: none;\"\u003e\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\u003cdiv class=\"title--wrap--wDzGayX description--title--ZsqjrTd\" align=\"start\" style=\"text-align: start;\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Sa62401168efa421aa867dc821eda4bdds.jpg\" alt=\"aimjin Hailong DP-9 48V 52V 36V downtube lithium ebike battery with USB port  Hailong DP-9 ebike battery mounted on bicycle downtube with key lock system\" style=\"float: none;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S80e4311806a545e79f1df2cad5de6085r.jpg\" alt=\"aimjin Hailong DP-9 48V 52V 36V downtube lithium ebike battery with USB port  Hailong DP-9 ebike battery mounted on bicycle downtube with key lock system\" style=\"float: none;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S7d4b7ca513ff4a718ea59fb82aad1b24o.jpg\" alt=\"aimjin Hailong DP-9 48V 52V 36V downtube lithium ebike battery with USB port  Hailong DP-9 ebike battery mounted on bicycle downtube with key lock system\" style=\"float: none;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/See3775ee09e145218110ec9c29c52048D.jpg\" alt=\"aimjin Hailong DP-9 48V 52V 36V downtube lithium ebike battery with USB port  Hailong DP-9 ebike battery mounted on bicycle downtube with key lock system\" style=\"float: none;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/S2b9d4240c4bf4fca849994fc8b2904f8s.jpg\" alt=\"aimjin Hailong DP-9 48V 52V 36V downtube lithium ebike battery with USB port  Hailong DP-9 ebike battery mounted on bicycle downtube with key lock system\" style=\"float: none;\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Ebike Power Network","offers":[{"title":"Charger 36V 2A","offer_id":47511141580971,"sku":"14:200001951#Charger 36V 2A","price":36.17,"currency_code":"USD","in_stock":true},{"title":"36V 30Ah-Charger","offer_id":47511141613739,"sku":"14:175#36V 30Ah-Charger","price":339.49,"currency_code":"USD","in_stock":true},{"title":"36V 40Ah-Charger","offer_id":47511141679275,"sku":"14:496#36V 40Ah-Charger","price":351.37,"currency_code":"USD","in_stock":true},{"title":"36V 50Ah-Charger","offer_id":47511141646507,"sku":"14:691#36V 50Ah-Charger","price":362.27,"currency_code":"USD","in_stock":true},{"title":"48V 30Ah-Charger","offer_id":47511141417131,"sku":"14:100018786#48V 30Ah-Charger","price":343.45,"currency_code":"USD","in_stock":true},{"title":"48V 40Ah-Charger","offer_id":47511141384363,"sku":"14:1052#48V 40Ah-Charger","price":369.6,"currency_code":"USD","in_stock":true},{"title":"48V 50Ah-Charger","offer_id":47511141482667,"sku":"14:350852#48V 50Ah-Charger","price":397.74,"currency_code":"USD","in_stock":true},{"title":"52V 30Ah-Charger","offer_id":47511141449899,"sku":"14:350853#52V 30Ah-Charger","price":347.41,"currency_code":"USD","in_stock":true},{"title":"52V 40Ah-Charger","offer_id":47511141548203,"sku":"14:365458#52V 40Ah-Charger","price":373.57,"currency_code":"USD","in_stock":true},{"title":"52V 50Ah-Charger","offer_id":47511141515435,"sku":"14:200000195#52V 50Ah-Charger","price":501.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/2649\/7451\/files\/Sfc82b7980d9349de999cc8feb57c7b99P.webp?v=1785174452","url":"https:\/\/chargemyebike.com\/products\/aimjin-hailong-dp9-downtube-ebike-battery-36v-48v-52v","provider":"Ebike Power Network","version":"1.0","type":"link"}