{"product_id":"electric-bicycle-waterproof-controller-bag-ebike-conversion-kit-parts-large-capacity-controller-bag-e-bike-controller-case","title":"Waterproof Electric Bicycle Controller Bag - Heavy-Duty Frame Mount Storage Case for E-Bike Conversion Kits (Size S \u0026 L)","description":"\u003cdiv style=\"font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; color: #202223; line-height: 1.6; max-width: 100%;\"\u003e\n\n  \u003cp style=\"font-size: 16px; margin-bottom: 20px;\"\u003e\n    Safeguard your electric bike's motor controller and sensitive wiring with the \u003cstrong\u003eWaterproof Electric Bicycle Controller Bag\u003c\/strong\u003e. Specifically engineered for e-bike conversion kit builds, custom electric bicycles, and commuter scooters, this rugged storage case shields your electronics from rain, road grit, dust, and vibration while keeping your frame wiring clean and organized.\n  \u003c\/p\u003e\n\n  \u003cp style=\"font-size: 16px; margin-bottom: 20px;\"\u003e\n    Crafted from high-density water-resistant nylon fabric, this case features a dedicated rubberized cable pass-through port, dual smooth-gliding zippers, reflective safety piping, and heavy-duty adjustable mounting straps. Available in two versatile sizes—\u003cstrong\u003eSize S (19 × 10 × 7 cm)\u003c\/strong\u003e for compact 250W–500W controllers and \u003cstrong\u003eSize L (28 × 12.5 × 7 cm)\u003c\/strong\u003e for high-power 750W–2000W controllers or extra tool storage.\n  \u003c\/p\u003e\n\n  \u003c!-- Product Demonstration Video --\u003e\n  \u003cdiv style=\"margin: 24px 0;\"\u003e\n    \u003ch3 style=\"font-size: 17px; font-weight: 600; color: #111; margin-bottom: 10px;\"\u003eProduct Overview \u0026amp; Features Demonstration\u003c\/h3\u003e\n    \u003cdiv style=\"position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; border-radius: 8px; background-color: #000; box-shadow: 0 2px 10px rgba(0,0,0,0.1);\"\u003e\n      \u003cvideo controls style=\"position: absolute; top: 0; left: 0; width: 100%; height: 100%; border-radius: 8px;\" preload=\"metadata\"\u003e\n        \u003csource src=\"https:\/\/video.aliexpress-media.com\/play\/u\/ae_sg_item\/3362903147\/p\/1\/e\/6\/t\/10301\/5000485370391.mp4?from=chrome\u0026amp;definition=h265\" type=\"video\/mp4\"\u003e\n        Your browser does not support the video tag.\n      \u003c\/source\u003e\u003c\/video\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cp style=\"text-align: center; margin: 20px 0;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/H8d72877358a648b791b47d826ef7a72fu.jpg\" alt=\"Waterproof Electric Bicycle Controller Bag Perspective View with Cable Exit Port\" style=\"max-width: 100%; height: auto; border-radius: 8px; box-shadow: 0 2px 10px rgba(0,0,0,0.06);\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\n  \u003ch2 style=\"font-size: 20px; font-weight: 700; color: #111; margin-top: 32px; margin-bottom: 12px; border-bottom: 2px solid #008060; padding-bottom: 6px;\"\u003eKey Features \u0026amp; Advantages\u003c\/h2\u003e\n  \u003cul style=\"padding-left: 20px; margin-bottom: 24px;\"\u003e\n    \u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eWeather-Resistant Rainproof Construction:\u003c\/strong\u003e Built with heavy-duty ballistic nylon fabric that sheds water, road spray, and splashes to keep moisture away from internal circuitry.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eDedicated Rubber Cable Exit Port:\u003c\/strong\u003e Cross-slit rubber grommet allows motor phase wires, battery leads, and display cables to pass through neatly while minimizing water ingress.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eTwo Optimized Sizes:\u003c\/strong\u003e Size Small is tailored for 6-MOSFET and 9-MOSFET controllers (250W–500W); Size Large accommodates larger 12-MOSFET and 15-MOSFET controllers (750W–2000W) or spare tools and mini batteries.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eSecure Tool-Free Mounting:\u003c\/strong\u003e Multiple wide hook-and-loop fastening straps fasten firmly around top tubes, down tubes, seat stays, or rear cargo racks to prevent rattling.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eHigh-Visibility Reflective Accent:\u003c\/strong\u003e Built-in silver reflective safety stripe enhances low-light visibility and nighttime commuter safety.\u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eCushioned Shock Absorption:\u003c\/strong\u003e Padded internal lining dampens rough road vibrations and impacts, extending controller lifespan.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cp style=\"text-align: center; margin: 20px 0;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Hbe79c9e8de1b40f0bad22d56b1dd2042I.jpg\" alt=\"Large Size Controller Bag Dimensions 28cm x 12.5cm x 7cm\" style=\"max-width: 100%; height: auto; border-radius: 8px; box-shadow: 0 2px 10px rgba(0,0,0,0.06);\" loading=\"lazy\"\u003e\u003c\/p\u003e\n  \u003cp style=\"text-align: center; margin: 20px 0;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Hcda0782f09eb4747ae4b402bcd802a23C.jpg\" alt=\"Small Size Controller Bag Dimensions 19cm x 10cm x 7cm\" style=\"max-width: 100%; height: auto; border-radius: 8px; box-shadow: 0 2px 10px rgba(0,0,0,0.06);\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\n  \u003ch2 style=\"font-size: 20px; font-weight: 700; color: #111; margin-top: 32px; margin-bottom: 12px; border-bottom: 2px solid #008060; padding-bottom: 6px;\"\u003eSize Selection \u0026amp; Compatibility Guide\u003c\/h2\u003e\n  \u003cp style=\"font-size: 15px; margin-bottom: 16px;\"\u003e\n    Measure your motor controller's outer dimensions (including wire exit clearance) before selecting your bag:\n  \u003c\/p\u003e\n  \u003cul style=\"padding-left: 20px; margin-bottom: 24px;\"\u003e\n    \u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eSize S (Small):\u003c\/strong\u003e Outer dimensions \u003cstrong\u003e19 cm (L) × 10 cm (W) × 7 cm (H)\u003c\/strong\u003e \/ 7.48\" × 3.94\" × 2.76\". Best suited for 250W, 350W, and compact 500W e-bike controllers (typically 12–17A \/ 6-MOSFET).\u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eSize L (Large):\u003c\/strong\u003e Outer dimensions \u003cstrong\u003e28 cm (L) × 12.5 cm (W) × 7 cm (H)\u003c\/strong\u003e \/ 11.02\" × 4.92\" × 2.76\". Best suited for 750W, 1000W, 1500W, and 2000W controllers (typically 22–40A \/ 9 to 15-MOSFET) or combined controller and wiring bundle storage.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cp style=\"text-align: center; margin: 20px 0;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Hbb39036746744e4783d2707c96bfd2478.jpg\" alt=\"Side Profile with Reflective Safety Stripe and Mounting Straps\" style=\"max-width: 100%; height: auto; border-radius: 8px; box-shadow: 0 2px 10px rgba(0,0,0,0.06);\" loading=\"lazy\"\u003e\u003c\/p\u003e\n\n  \u003ch2 style=\"font-size: 20px; font-weight: 700; color: #111; margin-top: 32px; margin-bottom: 12px; border-bottom: 2px solid #008060; padding-bottom: 6px;\"\u003eTechnical Specifications\u003c\/h2\u003e\n  \u003cdiv style=\"overflow-x: auto; margin-bottom: 24px;\"\u003e\n    \u003ctable style=\"width: 100%; border-collapse: collapse; text-align: left; font-size: 14px; border: 1px solid #e1e3e5;\"\u003e\n      \u003ctbody\u003e\n        \u003ctr style=\"background-color: #f7f8f9;\"\u003e\n          \u003cth style=\"padding: 10px 14px; border: 1px solid #e1e3e5; width: 35%;\"\u003eParameter\u003c\/th\u003e\n          \u003cth style=\"padding: 10px 14px; border: 1px solid #e1e3e5;\"\u003eSpecification\u003c\/th\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5; font-weight: 600;\"\u003eProduct Type\u003c\/td\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5;\"\u003eE-Bike Controller Storage Bag \/ Frame Case\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background-color: #fafbfc;\"\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5; font-weight: 600;\"\u003eMaterial\u003c\/td\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5;\"\u003eHeavy-Duty Water-Resistant Ballistic Nylon\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5; font-weight: 600;\"\u003eSmall Size Dimensions (S)\u003c\/td\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5;\"\u003e19 cm × 10 cm × 7 cm (7.48\" × 3.94\" × 2.76\")\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background-color: #fafbfc;\"\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5; font-weight: 600;\"\u003eLarge Size Dimensions (L)\u003c\/td\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5;\"\u003e28 cm × 12.5 cm × 7 cm (11.02\" × 4.92\" × 2.76\")\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5; font-weight: 600;\"\u003eColor \u0026amp; Trim\u003c\/td\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5;\"\u003eMatte Black with Red Contrast Piping\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background-color: #fafbfc;\"\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5; font-weight: 600;\"\u003eSafety Feature\u003c\/td\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5;\"\u003eIntegrated Silver Reflective Night Safety Strip\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5; font-weight: 600;\"\u003eMounting Method\u003c\/td\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5;\"\u003eAdjustable Hook-and-Loop Frame Fastening Straps\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background-color: #fafbfc;\"\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5; font-weight: 600;\"\u003eClosure\u003c\/td\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5;\"\u003eReinforced Dual Zipper with Cord Pulls\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5; font-weight: 600;\"\u003eCable Routing\u003c\/td\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5;\"\u003eWeather-Sealed Cross-Cut Rubber Exit Port\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background-color: #fafbfc;\"\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5; font-weight: 600;\"\u003eApplication\u003c\/td\u003e\n          \u003ctd style=\"padding: 10px 14px; border: 1px solid #e1e3e5;\"\u003eElectric Bicycles, Mountain Bikes, E-Scooters, Trikes\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003ch2 style=\"font-size: 20px; font-weight: 700; color: #111; margin-top: 32px; margin-bottom: 12px; border-bottom: 2px solid #008060; padding-bottom: 6px;\"\u003ePackage Contents Checklist\u003c\/h2\u003e\n  \u003cul style=\"padding-left: 20px; margin-bottom: 24px;\"\u003e\n    \u003cli style=\"margin-bottom: 8px;\"\u003e✔ \u003cstrong\u003e1× Waterproof Electric Bicycle Controller Bag:\u003c\/strong\u003e (Selected Size S or Size L).\u003c\/li\u003e\n    \u003cli style=\"margin-bottom: 8px;\"\u003e✔ \u003cstrong\u003eAttached Heavy-Duty Mounting Straps:\u003c\/strong\u003e Pre-sewn for easy frame fastening.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2 style=\"font-size: 20px; font-weight: 700; color: #111; margin-top: 32px; margin-bottom: 12px; border-bottom: 2px solid #008060; padding-bottom: 6px;\"\u003eFrequently Asked Questions (FAQ)\u003c\/h2\u003e\n  \u003cdiv style=\"margin-bottom: 24px;\"\u003e\n    \u003cp style=\"font-weight: 700; margin-bottom: 4px; color: #111;\"\u003eQ: How do I know which size (S or L) will fit my controller?\u003c\/p\u003e\n    \u003cp style=\"margin-bottom: 16px; color: #333;\"\u003eA: Measure your controller length, width, and height. Remember to allow about 2 to 3 cm of extra length for cable bends at the end. For controllers up to 15 cm long (typically 250W–500W \/ 6–9 MOSFET), choose \u003cstrong\u003eSize S\u003c\/strong\u003e. For controllers longer than 15 cm (typically 750W–2000W \/ 12–15 MOSFET), choose \u003cstrong\u003eSize L\u003c\/strong\u003e.\u003c\/p\u003e\n\n    \u003cp style=\"font-weight: 700; margin-bottom: 4px; color: #111;\"\u003eQ: Is this bag completely submersible or waterproof?\u003c\/p\u003e\n    \u003cp style=\"margin-bottom: 16px; color: #333;\"\u003eA: It is constructed from water-repellent nylon designed to protect against rain, splashing, and road spray during wet rides. It is not designed to be submerged underwater.\u003c\/p\u003e\n\n    \u003cp style=\"font-weight: 700; margin-bottom: 4px; color: #111;\"\u003eQ: Where can I mount this bag on my bicycle?\u003c\/p\u003e\n    \u003cp style=\"margin-bottom: 16px; color: #333;\"\u003eA: Thanks to adjustable hook-and-loop straps, it can be mounted on your top tube, down tube, seat tube, or underneath a rear cargo rack depending on your frame geometry.\u003c\/p\u003e\n\n    \u003cp style=\"font-weight: 700; margin-bottom: 4px; color: #111;\"\u003eQ: Will my controller overheat inside this bag?\u003c\/p\u003e\n    \u003cp style=\"margin-bottom: 16px; color: #333;\"\u003eA: For standard riding and commuting, heat dissipation is sufficient. If you are operating high-powered 1500W–2000W systems under continuous maximum throttle, ensure your controller has adequate breathing room or consider a metal controller bracket.\u003c\/p\u003e\n\n    \u003cp style=\"font-weight: 700; margin-bottom: 4px; color: #111;\"\u003eQ: What warranty and shipping terms apply?\u003c\/p\u003e\n    \u003cp style=\"margin-bottom: 16px; color: #333;\"\u003eA: All orders from E Smart Way include storewide free shipping, tracking numbers upon dispatch, and quality customer support.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003ch2 style=\"font-size: 20px; font-weight: 700; color: #111; margin-top: 32px; margin-bottom: 12px; border-bottom: 2px solid #008060; padding-bottom: 6px;\"\u003eInternational Shipping \u0026amp; Customs Notice\u003c\/h2\u003e\n  \u003cdiv style=\"background-color: #f9fafb; border: 1px solid #e1e3e5; border-radius: 8px; padding: 18px; margin-bottom: 20px;\"\u003e\n    \u003cp style=\"margin-bottom: 10px; font-size: 14px; color: #444;\"\u003e\n      \u003cstrong\u003eFree Worldwide Shipping:\u003c\/strong\u003e Every order is carefully inspected and packaged prior to shipping. Tracking numbers are uploaded promptly after dispatch.\n    \u003c\/p\u003e\n    \u003cp style=\"margin-bottom: 10px; font-size: 14px; color: #444;\"\u003e\n      \u003cstrong\u003eImport Duties \u0026amp; Taxes:\u003c\/strong\u003e Depending on local destination customs rules, international shipments may occasionally be subject to local VAT, customs clearance fees, or import duties levied by destination authorities. These fees remain the recipient's responsibility under standard international trade terms.\n    \u003c\/p\u003e\n    \u003cp style=\"margin-bottom: 0; font-size: 14px; color: #444;\"\u003e\n      \u003cstrong\u003eDelivery Contact:\u003c\/strong\u003e Please verify your phone number and shipping address during checkout so carriers can notify you promptly upon arrival.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Kunray","offers":[{"title":"L \/ China Mainland","offer_id":67651386343638,"sku":"1005002358743513-L-China Mainland","price":48.0,"currency_code":"USD","in_stock":true},{"title":"S \/ China Mainland","offer_id":67651386376406,"sku":"1005002358743513-S-China Mainland","price":38.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0252\/5878\/6893\/files\/H8d72877358a648b791b47d826ef7a72fu.webp?v=1792497828","url":"https:\/\/e-smartway.com\/products\/electric-bicycle-waterproof-controller-bag-ebike-conversion-kit-parts-large-capacity-controller-bag-e-bike-controller-case","provider":"E Smart Way ","version":"1.0","type":"link"}