{"title":"E-bike Dual Battery Balancer","description":"\u003c!-- =========================\nCOLLECTION PAGE CONTENT (Shopify HTML)\nCollection: E-Bike Dual Battery Balancer\nLanguage: English (US\/EU friendly)\nNotes: Replace bracket placeholders like [MODEL] \/ [LINK]\n========================= --\u003e\n\u003csection class=\"collection-intro\"\u003e\n\u003ch1\u003eE-Bike Dual Battery Balancers\u003c\/h1\u003e\n\u003cp\u003eYolin dual battery balancers are designed for compatible e-bike systems that need extended riding range through \u003cstrong\u003econtrolled battery switching\u003c\/strong\u003e. The system manages two batteries safely \u003cstrong\u003ewithout direct parallel connection\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eBuilt by an \u003cstrong\u003eoriginal e-bike electronics manufacturer\u003c\/strong\u003e—not a generic wiring accessory brand—our solutions focus on stability, predictable power behavior, and real-world serviceability.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003chr\u003e\n\u003csection class=\"compatibility-notice\"\u003e\n\u003ch2\u003eImportant Compatibility Notice\u003c\/h2\u003e\n\u003cp\u003eDual-battery systems are highly dependent on voltage, wiring, and controller configuration. Please review the checklist below before purchasing to avoid incorrect installation or mismatched components.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSame nominal voltage:\u003c\/strong\u003e both batteries must match (e.g., both 36V, both 48V, both 52V).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSame chemistry:\u003c\/strong\u003e battery chemistry must match (for example, lithium-ion to lithium-ion).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible connectors:\u003c\/strong\u003e verify connector type and pin layout.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eController support:\u003c\/strong\u003e your controller must support a dual-battery input setup.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eThis device does NOT increase motor power output.\u003c\/strong\u003e It manages \u003cstrong\u003ebattery usage\u003c\/strong\u003e—not motor performance.\u003c\/p\u003e\n\u003cp style=\"margin-top: 10px;\"\u003eNot sure if it fits your setup? Send us your \u003cstrong\u003ebattery voltage\u003c\/strong\u003e, \u003cstrong\u003econnector photos\u003c\/strong\u003e, and your \u003cstrong\u003econtroller model\u003c\/strong\u003e and we’ll help you confirm compatibility before you order.\u003cbr\u003e\u003c\/p\u003e\n\u003c\/section\u003e\n\u003chr\u003e\n\u003csection class=\"what-it-does\"\u003e\n\u003ch2\u003eWhat a Dual Battery Balancer Does\u003c\/h2\u003e\n\u003cp\u003eA dual battery balancer is designed to help your e-bike use two compatible batteries in a controlled way—supporting longer range while maintaining stable system behavior.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatically switches\u003c\/strong\u003e between two batteries (model dependent).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBalances load distribution\u003c\/strong\u003e to reduce excessive drain on one pack.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelps prevent uneven discharge\u003c\/strong\u003e during daily use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtends overall riding range\u003c\/strong\u003e by managing pack usage more efficiently.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection style=\"margin-top: 18px;\" class=\"what-it-does-not\"\u003e\n\u003ch2\u003eWhat It Does NOT Do\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eIt does \u003cstrong\u003enot\u003c\/strong\u003e boost speed.\u003c\/li\u003e\n\u003cli\u003eIt does \u003cstrong\u003enot\u003c\/strong\u003e increase controller output.\u003c\/li\u003e\n\u003cli\u003eIt does \u003cstrong\u003enot\u003c\/strong\u003e merge two batteries into one high-capacity pack.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor safety and compatibility, avoid attempting direct parallel wiring unless your battery manufacturer explicitly supports it.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003chr\u003e\n\u003csection class=\"product-types\"\u003e\n\u003ch2\u003eChoose the Right Type\u003c\/h2\u003e\n\u003cdiv class=\"product-type\"\u003e\n\u003ch3\u003eIntelligent Dual Battery Balancer\u003c\/h3\u003e\n\u003cp\u003eDesigned for riders and fleets who want automatic behavior with built-in monitoring.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic switching\u003c\/strong\u003e between battery packs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage monitoring\u003c\/strong\u003e (model dependent)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal isolation\u003c\/strong\u003e between packs to support safer integration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 18px;\" class=\"product-type\"\u003e\n\u003ch3\u003eManual Dual Battery Switch Module\u003c\/h3\u003e\n\u003cp\u003eDesigned for simpler setups where riders prefer direct control of switching behavior.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eRider-controlled switching\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimpler wiring structure\u003c\/strong\u003e (model dependent)\u003c\/li\u003e\n\u003cli\u003eGood option for service shops and retrofit projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003chr\u003e\n\u003csection class=\"technical-overview\"\u003e\n\u003ch2\u003eTechnical Overview\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesigned for same-voltage battery systems:\u003c\/strong\u003e 36V \/ 48V \/ 52V (depending on model)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMOS-based intelligent switching\u003c\/strong\u003e for stable power handling\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal isolation\u003c\/strong\u003e between packs to reduce cross-interference risk\u003c\/li\u003e\n\u003cli\u003eDesigned to integrate with \u003cstrong\u003ecompatible Yolin control systems\u003c\/strong\u003e (controller\/display dependent)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin-top: 10px;\"\u003e\u003cstrong\u003eReminder:\u003c\/strong\u003e Final vehicle wiring architecture and controller configuration are defined by your bike manufacturer. This page explains what the balancer is designed to do—not a complete diagnosis of every e-bike model.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003chr\u003e\n\u003csection class=\"installation-guidance\"\u003e\n\u003ch2\u003eInstallation Guidance\u003c\/h2\u003e\n\u003cp\u003eDual battery systems should be installed by qualified technicians. Improper wiring may damage your \u003cstrong\u003econtroller\u003c\/strong\u003e, \u003cstrong\u003ebattery BMS\u003c\/strong\u003e, or \u003cstrong\u003ewiring harness\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConfirm both batteries have the same nominal voltage before connection.\u003c\/li\u003e\n\u003cli\u003eDo not force connectors—verify alignment and pin layout.\u003c\/li\u003e\n\u003cli\u003eIf you see melted plugs, burning smell, or damaged wiring: stop and contact a service provider.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003chr\u003e\n\u003csection class=\"manufacturer-proof\"\u003e\n\u003ch2\u003eDesigned by an E-Bike Electronics Manufacturer\u003c\/h2\u003e\n\u003cp\u003eYolin designs and manufactures e-bike system components including displays, controllers, sensors, lighting, and power management accessories. Our dual battery solutions are engineered to fit within controlled electronic architectures—not as generic DIY battery combiners.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003chr\u003e\n\u003csection class=\"seo-footer\"\u003e\n\u003ch2\u003eDual Battery Balancer for E-Bikes (US\/EU Riders)\u003c\/h2\u003e\n\u003cp\u003eLooking for an \u003cstrong\u003ee-bike dual battery balancer\u003c\/strong\u003e or a \u003cstrong\u003edual battery switch\u003c\/strong\u003e to support longer range? Yolin offers controlled switching solutions designed for \u003cstrong\u003esame-voltage battery systems\u003c\/strong\u003e with clear compatibility guidance. Choose an intelligent balancer for automatic switching and monitoring, or a manual switch module for simplified rider control.\u003c\/p\u003e\n\u003cp\u003eTo reduce mismatch risk, verify battery voltage, chemistry, connector type, and controller support before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eYolin Dual Battery Balancers are SGS-certified and independently tested for thermal stability and electrical safety under IEC 62368-1 standards. Unlike generic modules that only advertise amp ratings, our balancers are proven safe for long-duration use: \u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e50A continuous current load with thermal stability: shell temp stabilizes at 50°C after 20 min, remains stable up to 360 min \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBuilt-in thermal protection: auto cutoff at 105°C ±5°C to prevent overheating \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eActive internal temperature monitoring – not just passive aluminum cooling \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCompatible with 36V\/48V\/60V systems and dual 48V\/52V battery setups\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003c!-- Anchor for product grid --\u003e\n\u003cdiv id=\"products\"\u003e\u003c\/div\u003e\n\u003c!-- =========================\nOPTIONAL: FAQ (Schema-friendly)\nKeep answers short and factual\n========================= --\u003e\n\u003csection class=\"faq\"\u003e\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003ch3\u003eCan I use a 48V and a 52V battery together?\u003c\/h3\u003e\n\u003cp\u003eNo. For safety and compatibility, both batteries should have the same nominal voltage.\u003c\/p\u003e\n\u003ch3\u003eDoes a dual battery balancer increase speed or power?\u003c\/h3\u003e\n\u003cp\u003eNo. It manages battery usage and switching behavior. It does not boost motor output.\u003c\/p\u003e\n\u003ch3\u003eIs this the same as wiring two batteries in parallel?\u003c\/h3\u003e\n\u003cp\u003eNo. A balancer\/switch system is designed to manage two packs without direct parallel connection.\u003c\/p\u003e\n\u003ch3\u003eWhat information should I send to confirm compatibility?\u003c\/h3\u003e\n\u003cp\u003eBattery voltage, battery connector photos, and your controller model (or controller label photo).\u003c\/p\u003e\n\u003c\/section\u003e","products":[{"product_id":"yolin-yl-dbe-30a-e-bike-dual-battery-balancer","title":"Yolin YL-DBE-30A E-bike Dual Battery Balancer","description":"\u003c!-- Product Description: Yolin DBE Dual Battery Balancer (20A \/ 30A) --\u003e\n\u003csection\u003e\n\u003cp data-start=\"340\" data-end=\"620\"\u003eThe \u003cstrong data-start=\"344\" data-end=\"386\"\u003eYolin YL-DBE-30A Dual Battery Balancer\u003c\/strong\u003e is designed for everyday e-bike systems that require extended riding range without complicated wiring. Rated for \u003cstrong data-start=\"500\" data-end=\"526\"\u003e30A continuous current\u003c\/strong\u003e, this model fits the majority of commuter e-bike setups using \u003cstrong data-start=\"589\" data-end=\"619\"\u003e36V or 48V battery systems\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"622\" data-end=\"827\"\u003eBy intelligently managing two batteries, the module helps distribute load between packs, reducing the chance of deep discharge on a single battery while maintaining stable power delivery to the controller. The YL-DBE-30A uses \u003cstrong data-start=\"849\" data-end=\"868\"\u003eXT60 connectors\u003c\/strong\u003e, making it easy to integrate with many common battery configurations.\u003c\/p\u003e\n\u003cp data-start=\"1113\" data-end=\"1280\"\u003eThis model is considered a \u003cstrong data-start=\"1140\" data-end=\"1173\"\u003epractical middle-range option\u003c\/strong\u003e for most riders who want the benefits of a dual-battery system without the need for high-current hardware.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eWhat This Dual Battery Balancer Does\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eManages two batteries in a compatible e-bike system (range extension)\u003c\/li\u003e\n\u003cli\u003eSupports controlled battery switching and load distribution\u003c\/li\u003e\n\u003cli\u003eHelps prevent one battery from draining excessively\u003c\/li\u003e\n\u003cli\u003eMaintains more stable battery usage for daily riding\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat It Does \u003cem\u003eNot\u003c\/em\u003e Do\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoes not\u003c\/strong\u003e increase motor power output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoes not\u003c\/strong\u003e increase top speed or remove speed limits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoes not\u003c\/strong\u003e merge two batteries into one high-capacity pack\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoes not\u003c\/strong\u003e make mismatched batteries “compatible”\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eImportant Compatibility Checklist\u003c\/h2\u003e\n\u003cdiv style=\"padding: 12px 14px; border: 1px solid #ffd9d9; border-radius: 10px; background: #fff6f6; margin: 14px 0;\"\u003e\n\u003cp style=\"margin: 0;\"\u003e\u003cstrong\u003eBefore purchasing, confirm the following:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul style=\"margin: 10px 0 0 18px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoth batteries must have the same nominal voltage\u003c\/strong\u003e (within 20–55V system range)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery chemistry must match\u003c\/strong\u003e (do not mix Li-ion with other chemistries)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector type must be XT60\u003c\/strong\u003e (or use proper adapter solutions safely)\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eYour controller\/system must support dual battery input\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eDo not use with damaged packs, swollen cells, or unknown battery condition\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cp\u003eDual battery systems are powerful—but only when the batteries and wiring are correctly matched. If anything is uncertain, contact us before ordering. \u003cspan\u003eThe connector shown in the product images is the standard version. We offer various wiring harness options to ensure compatibility with your specific eBike model and electrical system. If you require a different connector, please contact our customer service team after placing your order.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable border=\"1\" cellpadding=\"10\" cellspacing=\"0\" style=\"border-collapse: collapse; width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eSeries\u003c\/th\u003e\n\u003ctd\u003eYolin DBE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eVoltage Range\u003c\/th\u003e\n\u003ctd\u003e20–55V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eStatic Current\u003c\/th\u003e\n\u003ctd\u003e3mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eMax Current Options\u003c\/th\u003e\n\u003ctd\u003e30A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eConnector Type\u003c\/th\u003e\n\u003ctd\u003eXT60\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eApplication\u003c\/th\u003e\n\u003ctd\u003eDual battery e-bike range management (non-parallel switching)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection\u003e\u003c\/section\u003e\n\u003csection\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/section\u003e","brand":"Yolin","offers":[{"title":"20A","offer_id":51630040645764,"sku":null,"price":40.0,"currency_code":"USD","in_stock":true},{"title":"30A","offer_id":51630040678532,"sku":null,"price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0988\/3454\/6820\/files\/Yolin_YL-DBE-30A_E-bike_Dual_Battery_Balancer.jpg?v=1781230351"},{"product_id":"yolin-dbe-50a-e-bike-dual-battery-balancer","title":"Yolin YL-DBE-50A E-bike Dual Battery Balancer","description":"\u003csection\u003e\n\u003cp data-end=\"3510\" data-start=\"3313\"\u003eThe \u003cstrong data-end=\"3359\" data-start=\"3317\"\u003eYolin YL-DBEU-50A Dual Battery Manager\u003c\/strong\u003e combines \u003cstrong data-end=\"3439\" data-start=\"3369\"\u003ehigh-current capability with a more integrated installation design\u003c\/strong\u003e, making it suitable for advanced e-bike builds and high-power systems.\u003c\/p\u003e\n\u003cp data-end=\"3668\" data-start=\"3512\"\u003eWith a \u003cstrong data-end=\"3541\" data-start=\"3519\"\u003e50A current rating\u003c\/strong\u003e, this module supports demanding setups such as \u003cstrong data-end=\"3667\" data-start=\"3589\"\u003ecargo e-bikes, dual-motor builds, and high-capacity battery configurations\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-end=\"3794\" data-start=\"3670\"\u003eThe integrated DBEU design helps simplify system wiring while maintaining stable power management between two battery packs.\u003c\/p\u003e\n\u003cp data-end=\"3931\" data-start=\"3796\"\u003eBy managing battery usage intelligently, the system helps maintain \u003cstrong data-end=\"3930\" data-start=\"3863\"\u003econsistent power output while reducing uneven battery discharge\u003c\/strong\u003e. The DBEU-50A is ideal for riders and builders who need \u003cstrong data-end=\"4217\" data-start=\"4151\"\u003eboth high current capability and structured system integration\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eImportant Compatibility Checklist\u003c\/h2\u003e\n\u003cdiv style=\"padding: 12px 14px; border: 1px solid #ffd9d9; border-radius: 10px; background: #fff6f6; margin: 14px 0;\"\u003e\n\u003cp\u003e\u003cstrong\u003eBefore installing:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBoth batteries must have the same nominal voltage\u003c\/li\u003e\n\u003cli\u003eBattery chemistry must match\u003c\/li\u003e\n\u003cli\u003eXT90 connectors must be compatible with your system\u003c\/li\u003e\n\u003cli\u003eYour controller must support dual battery operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cp\u003eThis system manages battery usage only. It does not increase motor power output or remove speed limits.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe connector shown in the product images is the standard version. We offer various wiring harness options to ensure compatibility with your specific eBike model and electrical system. If you require a different connector, please contact our customer service team after placing your order.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable border=\"1\" cellpadding=\"10\" cellspacing=\"0\" style=\"border-collapse: collapse; width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eModel\u003c\/th\u003e\n\u003ctd\u003eYL-DBE-50A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eInput Voltage\u003c\/th\u003e\n\u003ctd\u003e20-55V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eStatic Current\u003c\/th\u003e\n\u003ctd\u003e3mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eMax Current\u003c\/th\u003e\n\u003ctd\u003e50A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eConnector Type\u003c\/th\u003e\n\u003ctd\u003eXT90\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eApplication\u003c\/th\u003e\n\u003ctd\u003eHigh-current dual battery e-bike systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection\u003e\u003c\/section\u003e\n\u003csection\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/section\u003e","brand":"Yolin","offers":[{"title":"Default Title","offer_id":51585602453636,"sku":null,"price":70.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0988\/3454\/6820\/files\/Yolin_YL-DBE-50A_eBike_Dual_Battery_Balancer_50A_current_for_electric_bike_battery_management.jpg?v=1781087972"},{"product_id":"yolin-dbeu-30a-dual-battery-manager","title":"Yolin DBEU-30A Dual Battery Balancer","description":"\u003csection\u003e\n\u003cp data-end=\"2546\" data-start=\"2349\"\u003eThe \u003cstrong data-end=\"2395\" data-start=\"2353\"\u003eYolin YL-DBEU-30A Dual Battery Balancer\u003c\/strong\u003e is designed for riders and builders who prefer a \u003cstrong data-end=\"2489\" data-start=\"2445\"\u003ecleaner and more integrated installation\u003c\/strong\u003e compared with traditional inline battery switch modules.\u003c\/p\u003e\n\u003cp data-end=\"2720\" data-start=\"2548\"\u003eRated for \u003cstrong data-end=\"2573\" data-start=\"2558\"\u003e30A current\u003c\/strong\u003e, the DBEU-30A works well with most commuter-class e-bike systems while offering a more organized wiring layout that simplifies system integration.\u003c\/p\u003e\n\u003cp data-end=\"2918\" data-start=\"2722\"\u003eThis design makes the DBEU series especially suitable for \u003cstrong data-end=\"2853\" data-start=\"2780\"\u003eOEM builds, professional installations, and custom e-bike conversions\u003c\/strong\u003e where cable management and installation stability are important. The DBEU-30A is often chosen by builders who prioritize \u003cstrong data-end=\"3205\" data-start=\"3158\"\u003einstallation structure and cable management\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-end=\"2918\" data-start=\"2722\"\u003e\u003cspan\u003eThe connector shown in the product images is the standard version. We offer various wiring harness options to ensure compatibility with your specific eBike model and electrical system. If you require a different connector, please contact our customer service team after placing your order.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eDBEU Series Options\u003c\/h2\u003e\n\u003ctable border=\"1\" cellpadding=\"10\" cellspacing=\"0\" style=\"border-collapse: collapse; width: 100%;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eMax Current\u003c\/th\u003e\n\u003cth\u003eConnector\u003c\/th\u003e\n\u003cth\u003eTypical Application\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eYL-DBEU-30A\u003c\/td\u003e\n\u003ctd\u003e30A\u003c\/td\u003e\n\u003ctd\u003eXT60\u003c\/td\u003e\n\u003ctd\u003eStandard commuter systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYL-DBEU-50A\u003c\/td\u003e\n\u003ctd\u003e50A\u003c\/td\u003e\n\u003ctd\u003eXT90\u003c\/td\u003e\n\u003ctd\u003eCargo \/ higher current systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable border=\"1\" cellpadding=\"10\" cellspacing=\"0\" style=\"border-collapse: collapse; width: 100%; height: 58.7814px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"height: 19.5938px;\" align=\"left\"\u003eInput Voltage\u003c\/th\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e20-55V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"height: 19.5938px;\" align=\"left\"\u003eStatic Current\u003c\/th\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e3mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"height: 19.5938px;\" align=\"left\"\u003eFunction\u003c\/th\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003eDual battery management (non-parallel switching)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eCompatibility Checklist\u003c\/h2\u003e\n\u003cdiv style=\"padding: 12px 14px; border: 1px solid #ffd9d9; border-radius: 10px; background: #fff6f6; margin: 14px 0;\"\u003e\n\u003cul\u003e\n\u003cli\u003eBoth batteries must have the same nominal voltage\u003c\/li\u003e\n\u003cli\u003eBattery chemistry must match\u003c\/li\u003e\n\u003cli\u003eConnector type must match your system\u003c\/li\u003e\n\u003cli\u003eYour controller must support dual battery setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e","brand":"Yolin","offers":[{"title":"Default Title","offer_id":51585831993476,"sku":null,"price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0988\/3454\/6820\/files\/Yolin_DBEU-30A_Dual_Battery_Balancer.jpg?v=1773481110"},{"product_id":"yolin-dbeu-50a-dual-battery-manager","title":"Yolin DBEU-50A Dual Battery Balancer","description":"\u003c!-- Product Description: Yolin YL-DBEU-50A Dual Battery Manager (XT90, 50A) --\u003e\n\u003csection\u003e\n\u003cp\u003e\u003cstrong\u003eYolin YL-DBEU-50A Dual Battery Balancer\u003c\/strong\u003e is built for higher-current e-bike systems that use \u003cstrong\u003etwo batteries to extend riding range\u003c\/strong\u003e—while keeping the packs \u003cstrong\u003eelectrically isolated (no direct parallel connection)\u003c\/strong\u003e. It’s designed for cargo bikes, heavy-load riding, and power-hungry builds where stable switching and stronger connector hardware matter.\u003c\/p\u003e\n\u003cdiv style=\"padding: 12px 14px; border: 1px solid #e5e5e5; border-radius: 10px; background: #fafafa; margin: 14px 0;\"\u003e\n\u003cp style=\"margin: 0;\"\u003e\u003cstrong\u003eHigh-current DBEU platform.\u003c\/strong\u003e The DBEU series is an upgraded dual-battery management line developed by an original e-bike electronics manufacturer—engineered for real-world systems, not generic wiring kits.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eWhere the DBEU-50A Fits Best\u003c\/h2\u003e\n\u003cp\u003eThe DBEU-50A is intended for systems that regularly pull higher current—such as acceleration under load, hill climbing, or cargo transport.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCargo e-bikes and utility builds\u003c\/li\u003e\n\u003cli\u003eHeavier riders, heavier loads, frequent starts\/stops\u003c\/li\u003e\n\u003cli\u003eHigher-current controllers (verify your controller label)\u003c\/li\u003e\n\u003cli\u003eTwo-battery setups where stable power delivery matters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eWhat a Dual Battery Manager Does\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eManages usage between two compatible batteries to extend total riding range\u003c\/li\u003e\n\u003cli\u003eSupports controlled switching and load distribution between packs\u003c\/li\u003e\n\u003cli\u003eHelps prevent one battery from draining excessively\u003c\/li\u003e\n\u003cli\u003eMaintains more stable operation for demanding use cases\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat It Does \u003cem\u003eNot\u003c\/em\u003e Do\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoes not\u003c\/strong\u003e increase motor power output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoes not\u003c\/strong\u003e increase top speed or remove speed limits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoes not\u003c\/strong\u003e combine two packs into one large battery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoes not\u003c\/strong\u003e make mismatched batteries safe to use together\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eDBEU-50A Key Difference: 50A + XT90\u003c\/h2\u003e\n\u003cp\u003eCompared with lower-current dual-battery devices, the DBEU-50A is built to support higher current demand and uses \u003cstrong\u003eXT90 connectors\u003c\/strong\u003e for higher-load applications.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Current:\u003c\/strong\u003e 50A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector:\u003c\/strong\u003e XT90\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesigned for:\u003c\/strong\u003e higher-current e-bike platforms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhysical size:\u003c\/strong\u003e larger housing vs. lower-current versions (to support higher-load components)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eImportant Compatibility Checklist\u003c\/h2\u003e\n\u003cdiv style=\"padding: 12px 14px; border: 1px solid #ffd9d9; border-radius: 10px; background: #fff6f6; margin: 14px 0;\"\u003e\n\u003cp style=\"margin: 0;\"\u003e\u003cstrong\u003eBefore purchasing, confirm:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul style=\"margin: 10px 0 0 18px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoth batteries have the same nominal voltage\u003c\/strong\u003e (system range: 20–55V)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery chemistry matches\u003c\/strong\u003e (do not mix different chemistries)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector type is XT90\u003c\/strong\u003e (or use correct, high-current-rated adapters)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYour controller supports dual-battery input\u003c\/strong\u003e \/ two-battery configuration\u003c\/li\u003e\n\u003cli\u003eDo not use with damaged, swollen, or unknown-condition packs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eSafety note:\u003c\/strong\u003e This product manages battery usage. It does not modify controller behavior or performance limits set by the bike manufacturer.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe connector shown in the product images is the standard version. We offer various wiring harness options to ensure compatibility with your specific eBike model and electrical system. If you require a different connector, please contact our customer service team after placing your order.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable border=\"1\" cellpadding=\"10\" cellspacing=\"0\" style=\"border-collapse: collapse; width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eModel\u003c\/th\u003e\n\u003ctd\u003eYL-DBEU-50A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eInput Voltage\u003c\/th\u003e\n\u003ctd\u003e20–55V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eStatic Current\u003c\/th\u003e\n\u003ctd\u003e3mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eMax Current\u003c\/th\u003e\n\u003ctd\u003e50A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eConnector Type\u003c\/th\u003e\n\u003ctd\u003eXT90\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eSystem Type\u003c\/th\u003e\n\u003ctd\u003eDual battery e-bike management (non-parallel switching)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eRecommended Use\u003c\/th\u003e\n\u003ctd\u003eCargo \/ high-current \/ heavy-load e-bike systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eInstallation Notes (High-Current Systems)\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePower the bike off completely and disconnect batteries before wiring.\u003c\/li\u003e\n\u003cli\u003eConfirm \u003cstrong\u003eXT90 polarity\u003c\/strong\u003e and connector condition before seating.\u003c\/li\u003e\n\u003cli\u003eRoute cables away from sharp edges, moving parts, and pinch points.\u003c\/li\u003e\n\u003cli\u003eFor high-power builds, professional installation is recommended.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eNeed Help Confirming Fit?\u003c\/h2\u003e\n\u003cp\u003eTo reduce wrong orders, contact us before purchase with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eYour battery voltage (example: 48V \/ 52V)\u003c\/li\u003e\n\u003cli\u003ePhotos of your XT90 connectors (battery side + controller side)\u003c\/li\u003e\n\u003cli\u003eController label (current rating) and bike brand\/model (if known)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWe’ll help confirm whether the \u003cstrong\u003eDBEU-50A\u003c\/strong\u003e is the right choice for your system.\u003c\/p\u003e\n\u003c\/section\u003e","brand":"Yolin","offers":[{"title":"Default Title","offer_id":51585880752260,"sku":null,"price":70.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0988\/3454\/6820\/files\/Yolin_DBEU-50A_Dual_Battery_Balancer.jpg?v=1773630466"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0988\/3454\/6820\/collections\/YolinYL-DBE-20AE-bikeDualBatteryBalancer.jpg?v=1779181980","url":"https:\/\/yolintech.com\/collections\/ebike-dual-battery-balancer.oembed","provider":"YolinTech","version":"1.0","type":"link"}