{"product_id":"5v-2a-type-c-usb-boost-converter-module-with-led-display-charging-protection-board-for-3-7v-4-2v-li-ion-battery-diy-power-bank","title":"5V 2A Type-C USB Boost Converter Module with LED Display Charging Protection Board for 3.7V\/4.2V Li-ion Battery DIY Power Bank","description":"\u003ch1\u003eSPECIFICATIONS\u003c\/h1\u003e\u003cp\u003e\u003cspan\u003eBrand Name\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eANGSHENGDA\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eCondition\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eNew\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eHigh-concerned chemical\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003enone\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eOrigin\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eMainland China\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cspan\u003eType\u003c\/span\u003e: \u003cspan style=\"color:#333\"\u003eModule\u003c\/span\u003e\u003c\/p\u003e\u003cbr\u003e\u003cdiv style='font-family:\"TT Norms Pro\", \"Open Sans\", Roboto, Arial, Helvetica, sans-serif, SimSun;font-size:14px;font-weight:400;letter-spacing:normal;line-height:56px;text-align:start;white-space:normal;color:rgb(34, 34, 34);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;display:flex;height:56px;box-sizing:border-box' class=\"title--wrap--NWOaiSp description--title--NMh4UiD\" align=\"start\"\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;display:flex;height:56px;box-sizing:border-box\" class=\"title--text--Otu0bLr\"\u003e\n\u003ch2 style=\"font-size:24px;font-weight:700;color:rgb(25, 25, 25);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;display:inline-block;box-sizing:border-box\" class=\"title--title--O6xcB1q\"\u003eDescription\u003c\/h2\u003e\n\u003cdiv id=\"ah-down-description\" style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\" class=\"hter-icon-download\"\u003e\n\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\" class=\"hter-main-icon\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eDownload\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003ca style=\"font-size:15px;font-weight:700;color:rgb(25, 25, 25);background-color:transparent;margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\" class=\"description--report--_8LzMSh\" href=\"https:\/\/report.aliexpress.com\/health\/reportIndex.htm?product_id=1005006982908321\" target=\"_blank\"\u003e\u003cspan style=\"color:rgb(0, 0, 0)\"\u003e\u003cstrong\u003eReport this item or seller\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003cdiv style='font-family:\"TT Norms Pro\", \"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;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;position:relative;box-sizing:border-box' class=\"extend--wrap--yXwoDbO\" align=\"start\"\u003e\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;overflow:hidden;position:relative;box-sizing:border-box\" class=\"extend--content--VuIQZia\"\u003e\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cdiv id=\"product-description\" style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;max-width:944px;overflow:hidden;position:relative;box-sizing:border-box\" class=\"description--product-description--Mjtql28\"\u003e\u003cdiv style=\"margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px;padding:0px;padding-bottom:0px;padding-top:0px;padding-left:0px;padding-right:0px;box-sizing:border-box\"\u003e\u003cdiv id=\"product-description\" style=\"max-width:944px;overflow:hidden;position:relative\" class=\"product-description\"\u003e\u003cdiv style=\"box-sizing:content-box\" class=\"detailmodule_html\"\u003e\u003cdiv style=\"box-sizing:content-box\" class=\"detail-desc-decorate-richtext\"\u003e\n\u003cdiv style=\"box-sizing:content-box\"\u003ep{margin-block-start: 0; margin-block-end: 0}\u003c\/div\u003e\n\u003cp style=\"font-size:20px;font-weight:bold;line-height:inherit;text-align:left;color:rgb(67, 70, 73);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px\" class=\"word-break white-space mt-10\" align=\"left\"\u003eBuild Your Custom Power Bank Easily! 5V 2A Type-C Charge-Discharge Boost Module with LED Display \u0026amp; Protection, The Perfect Core for DIY Power Banks.\u003c\/p\u003e\n\u003cp style=\"font-size:16px;font-weight:bold;line-height:inherit;text-align:left;color:rgb(67, 70, 73);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px\" class=\"word-break white-space mt-10\" align=\"left\"\u003eKey Features \u0026amp; Benefits\u003c\/p\u003e\n\u003cp style=\"font-size:13px;font-weight:normal;line-height:inherit;text-align:left;color:rgb(67, 70, 73);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px\" class=\"word-break white-space mt-10\" align=\"left\"\u003e🔋 All-in-One Charge \u0026amp; Discharge: Integrates Type-C charging and 5V boost output on one board. Supports passthrough charging, simplifying DIY.\u003cbr\u003e\u003cbr\u003e📊 4-Level LED Power Display: 4 LEDs clearly indicate battery level (25%, 50%, 75%, 100%) for clear status at a glance.\u003cbr\u003e\u003cbr\u003e⚡ Stable 5V 2A Fast Output: Efficient synchronous boost circuit provides steady 5V\/2A output to charge phones, tablets, and more.\u003cbr\u003e\u003cbr\u003e🛡️ Comprehensive Safety Protection: Built-in Li-ion charge management (4.2V\/4.35V selectable), over-discharge, output over-current, and short-circuit protection.\u003cbr\u003e\u003cbr\u003e🔌 Modern Type-C Input: Universal Type-C port compatible with standard 5V chargers.\u003cbr\u003e\u003cbr\u003e🛠️ Two Versions for Flexibility: Choose between USB-A Port Pre-soldered (ready to use) or No USB Port (full DIY) to match your needs.\u003c\/p\u003e\n\u003cp style=\"font-size:16px;font-weight:bold;line-height:inherit;text-align:left;color:rgb(67, 70, 73);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px\" class=\"word-break white-space mt-10\" align=\"left\"\u003eProduct Description\u003c\/p\u003e\n\u003cp style=\"font-size:13px;font-weight:normal;line-height:inherit;text-align:left;color:rgb(67, 70, 73);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px\" class=\"word-break white-space mt-10\" align=\"left\"\u003eThis module is the ideal heart for your DIY high-performance mini power bank. It combines charging management, boost conversion, power display, and multiple protections on a compact board. Just add a common 3.7V Li-ion battery (like 18650 or 21700) and a case to quickly assemble a fully-featured, reliable personal charger. Perfect as a daily emergency power source or a 5V power supply for your electronic projects.\u003c\/p\u003e\n\u003cp style=\"font-size:24px;font-weight:bold;line-height:inherit;text-align:left;color:rgb(67, 70, 73);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px\" class=\"word-break white-space mt-10\" align=\"left\"\u003e🚨 Critical User Guide: Read Before Purchase \u0026amp; Use!\u003cbr\u003e\u003c\/p\u003e\n\u003cp style=\"font-size:16px;font-weight:bold;line-height:inherit;text-align:left;color:rgb(67, 70, 73);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px\" class=\"word-break white-space mt-10\" align=\"left\"\u003e❌ 【What This IS \u0026amp; IS NOT】: This is a “Li-ion Battery Management Controller Board”, NOT a plug-and-play finished power bank!\u003c\/p\u003e\n\u003cp style=\"font-size:13px;font-weight:normal;line-height:inherit;text-align:left;color:rgb(67, 70, 73);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px\" class=\"word-break white-space mt-10\" align=\"left\"\u003eYou need to provide your own battery, case, and charger to make it functional.\u003c\/p\u003e\n\u003cp style=\"font-size:20px;font-weight:bold;line-height:inherit;text-align:left;color:rgb(67, 70, 73);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px\" class=\"word-break white-space mt-10\" align=\"left\"\u003e⚠️ 【Key SKU Difference \u0026amp; Requirements】\u003c\/p\u003e\n\u003cp style=\"font-size:16px;font-weight:bold;line-height:inherit;text-align:left;color:rgb(67, 70, 73);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px\" class=\"word-break white-space mt-10\" align=\"left\"\u003e1. The Most Important Choice: The key difference is whether the USB output port is soldered.\u003c\/p\u003e\n\u003cp style=\"font-size:13px;font-weight:normal;line-height:inherit;text-align:left;color:rgb(67, 70, 73);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px\" class=\"word-break white-space mt-10\" align=\"left\"\u003e\"USB Port Soldered\" Version: Output port is pre-soldered, ready to use.\u003cbr\u003e\u003cbr\u003e\"No USB Port\" Version: Has only solder pads. You MUST solder a USB-A female port yourself to connect a charging cable.\u003cbr\u003e\u003cbr\u003ePlease choose the correct SKU based on your soldering skill!\u003c\/p\u003e\n\u003cp style=\"font-size:16px;font-weight:bold;line-height:inherit;text-align:left;color:rgb(67, 70, 73);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px\" class=\"word-break white-space mt-10\" align=\"left\"\u003e2. Required Components:\u003c\/p\u003e\n\u003cp style=\"font-size:13px;font-weight:normal;line-height:inherit;text-align:left;color:rgb(67, 70, 73);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px\" class=\"word-break white-space mt-10\" align=\"left\"\u003eTo use this module, you MUST have: ① A single 3.7V Li-ion battery (recommended 18650\/21700 with protection circuit), ② A 5V Type-C charger, ③ A power bank case.\u003c\/p\u003e\n\u003cp style=\"font-size:16px;font-weight:bold;line-height:inherit;text-align:left;color:rgb(67, 70, 73);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px\" class=\"word-break white-space mt-10\" align=\"left\"\u003e3. Critical Wiring Warning:\u003c\/p\u003e\n\u003cp style=\"font-size:13px;font-weight:normal;line-height:inherit;text-align:left;color:rgb(67, 70, 73);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px\" class=\"word-break white-space mt-10\" align=\"left\"\u003eThe Type-C port is for 5V INPUT (charging) ONLY. ABSOLUTELY FORBIDDEN to connect battery terminals directly to the Type-C port or the output terminals, as this will permanently damage the module!\u003cbr\u003e\u003c\/p\u003e\n\u003cp style=\"font-size:16px;font-weight:bold;line-height:inherit;text-align:left;color:rgb(67, 70, 73);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px\" class=\"word-break white-space mt-10\" align=\"left\"\u003e✅ 【Required Setup \u0026amp; Steps】\u003c\/p\u003e\n\u003cp style=\"font-size:13px;font-weight:normal;line-height:inherit;text-align:left;color:rgb(67, 70, 73);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px\" class=\"word-break white-space mt-10\" align=\"left\"\u003e1. Confirm Version \u0026amp; Prepare: Confirm your SKU and prepare battery, case, cables.\u003cbr\u003e\u003cbr\u003e2. Connect Battery: Connect the battery positive\/negative to the module's B+ and B- terminals.\u003cbr\u003e\u003cbr\u003e3. Charging Test: Use a 5V Type-C charger. Observe the red charging indicator.\u003cbr\u003e\u003cbr\u003e4. Discharging Test: Connect a phone via the pre-soldered USB port or your own soldered port to test output.\u003c\/p\u003e\n\u003cp style=\"font-size:16px;font-weight:bold;line-height:inherit;text-align:left;color:rgb(67, 70, 73);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px\" class=\"word-break white-space mt-10\" align=\"left\"\u003e🔧 【Important Notes \u0026amp; Compatibility】\u003c\/p\u003e\n\u003cp style=\"font-size:13px;font-weight:normal;line-height:inherit;text-align:left;color:rgb(67, 70, 73);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px\" class=\"word-break white-space mt-10\" align=\"left\"\u003eCharge Voltage Selection: A jumper on board selects charge cutoff voltage: 4.2V (standard Li-ion) or 4.35V (high-voltage Li-ion). Set according to your battery.\u003cbr\u003e\u003cbr\u003eAuto-Shutdown: The 5V output automatically turns off when load current stays below 50mA for ~30 seconds to save power. Press an external button or reconnect load to wake.\u003cbr\u003e\u003cbr\u003eDisplay Logic: LEDs show battery level during discharge. Only red LED indicates status during charging.\u003c\/p\u003e\n\u003cp style=\"font-size:16px;font-weight:bold;line-height:inherit;text-align:left;color:rgb(67, 70, 73);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px\" class=\"word-break white-space mt-10\" align=\"left\"\u003eSpecifications\u003c\/p\u003e\n\u003cp style=\"font-size:13px;font-weight:normal;line-height:inherit;text-align:left;color:rgb(67, 70, 73);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px\" class=\"word-break white-space mt-10\" align=\"left\"\u003eInput Port: Type-C\u003cbr\u003e\u003cbr\u003eInput Voltage: 5V - 5.5V\u003cbr\u003e\u003cbr\u003eCharge Cut-off Voltage: 4.2V \/ 4.35V (Jumper Selectable)\u003cbr\u003e\u003cbr\u003eCharge Current: 2.4A ±5%\u003cbr\u003e\u003cbr\u003eBoost Output Voltage: 5V - 5.15V (with line loss compensation)\u003cbr\u003e\u003cbr\u003eMax Output Current: 2A\u003cbr\u003e\u003cbr\u003eEfficiency: Up to ~92.5% (3.6Vin, 5V\/2A Out)\u003cbr\u003e\u003cbr\u003eDisplay: 4-LED Battery Indicator\u003cbr\u003e\u003cbr\u003eQuiescent Current: \u0026lt; 30μA\u003cbr\u003e\u003cbr\u003eMain Application: DIY Power Bank, Portable Device Power Supply, Li-ion Battery Management Projects\u003c\/p\u003e\n\u003cp style=\"font-size:16px;font-weight:bold;line-height:inherit;text-align:left;color:rgb(67, 70, 73);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px\" class=\"word-break white-space mt-10\" align=\"left\"\u003ePackage Includes\u003c\/p\u003e\n\u003cp style=\"font-size:13px;font-weight:normal;line-height:inherit;text-align:left;color:rgb(67, 70, 73);margin:0px;margin-bottom:0px;margin-top:0px;margin-left:0px;margin-right:0px\" class=\"word-break white-space mt-10\" align=\"left\"\u003e1 x 5V 2A Charge-Discharge Boost Module\u003cbr\u003e\u003cbr\u003e(A pre-soldered USB-A female port may be included depending on the SKU selected)\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003cp\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S3e4f5ab35b7b4bbea95f82e776efcdacF.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/Sdd561324c49a48d39d05ff34cc4c0278r.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S14ce79cb50414848aeee136533e61e24N.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S15a85f1a96884a5cba30f1f037cafe084.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S64cafa1a39b14b65958d85352b02afc3j.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S68827f381524416f8c8f92f41ac9e881K.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e","brand":"Yoeruyo","offers":[{"title":"No welding","offer_id":55468133712171,"sku":"14:1202#No welding","price":3.48,"currency_code":"USD","in_stock":true},{"title":"Welding","offer_id":55468133744939,"sku":"14:350852#Welding","price":3.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1000\/5744\/8747\/files\/S68827f381524416f8c8f92f41ac9e881K.webp?v=1788850521","url":"https:\/\/yoeruyo.com\/products\/5v-2a-type-c-usb-boost-converter-module-with-led-display-charging-protection-board-for-3-7v-4-2v-li-ion-battery-diy-power-bank","provider":"Yoeruyo","version":"1.0","type":"link"}