{"product_id":"usb-18650-lithium-battery-charger-step-up-boost-module","title":"USB 18650 Li-ion Battery Charger \u0026 Step-Up Boost Module","description":"\n\u003ch2\u003eUSB 18650 Lithium Battery Charger \u0026amp; Adjustable Step-Up Boost Module\u003c\/h2\u003e\n\u003cp\u003eThis compact and versatile USB lithium battery charger module is the perfect solution for DIY electronics enthusiasts and makers. It combines a \u003cstrong\u003eLi-ion\/LiPo 18650 battery charger\u003c\/strong\u003e with an \u003cstrong\u003eadjustable step-up (boost) converter\u003c\/strong\u003e in a single, easy-to-use board. Whether you're building a portable power bank, a solar charging project, or converting a device to run on lithium batteries, this module delivers reliable performance in a tiny package.\u003c\/p\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Voltage:\u003c\/strong\u003e 4.5V – 8V DC (USB or solar panel compatible)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutput Voltage:\u003c\/strong\u003e 4.3V – 27V DC (adjustable)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCharging Voltage:\u003c\/strong\u003e 4.2V DC (ideal for 3.7V 18650 cells)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCharging Current:\u003c\/strong\u003e Up to 1A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDischarging Current:\u003c\/strong\u003e Up to 2A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBoost Output Range:\u003c\/strong\u003e Selectable steps — 5V, 9V, 12V, 24V and more\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eMade in Mainland China\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow It Works\u003c\/h3\u003e\n\u003cp\u003eConnect your 5V input (such as a USB source or 5V solar panel) to the \u003cstrong\u003eVIN+\u003c\/strong\u003e terminal. The \u003cstrong\u003eBAT+\u003c\/strong\u003e terminal outputs a regulated 4.2V charge current to your 3.7V 18650 lithium cell. The \u003cstrong\u003eOUT+\u003c\/strong\u003e terminal delivers your chosen adjustable boost voltage — making it ideal for powering devices that require 5V, 9V, 12V, or even up to 24V from a single lithium cell.\u003c\/p\u003e\n\u003cp\u003eA great practical use: connect a 5V solar panel to the input, charge an 18650 battery, and simultaneously power a higher-voltage device from the boost output. Also suitable for converting multimeters and other portable tools to run on rechargeable lithium batteries.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eAll-in-one charge + boost design — fewer components, cleaner builds\u003c\/li\u003e\n  \u003cli\u003eWide adjustable output range: 4.3V to 27V DC\u003c\/li\u003e\n  \u003cli\u003eCompatible with standard 3.7V Li-ion \/ LiPo \/ 18650 cells\u003c\/li\u003e\n  \u003cli\u003eCompact PCB board — easy to integrate into custom enclosures\u003c\/li\u003e\n  \u003cli\u003eUSB-compatible input for convenient bench or solar charging\u003c\/li\u003e\n  \u003cli\u003eSuitable for DIY power banks, robotics, portable electronics \u0026amp; more\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1× Lithium Li-ion Battery Boost Charger Module (New Version)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/stainless-steel-cord-end-caps-with-loop-jewelry-making-6pcs\"\u003eStainless Steel Cord End Caps with Loop – Jewelry Findings\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/aluminum-o-shape-twist-chain-12x8mm-5-yards-diy-jewelry-bag\"\u003e5 Yards 12x8mm O-Shape Aluminum Twist Chain for DIY Projects\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/metal-q-ring-spring-clasps-gold-silver-plated-jewelry-connectors\"\u003eMetal Q Ring Spring Clasps Gold Silver Plated – Connectors\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.energystar.gov\/products\" target=\"_blank\" rel=\"noopener\"\u003eENERGY STAR product efficiency guidance\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What types of batteries can this 18650 charger module charge?\u003c\/h4\u003e\n\u003cp\u003eA: This module is designed for standard 3.7V lithium-ion (Li-ion) and lithium polymer (LiPo) cells, including popular 18650 format batteries. It delivers a regulated 4.2V charging voltage at up to 1A — the correct charge profile for most 3.7V lithium cells.\u003c\/p\u003e\n\u003ch4\u003eQ: Can I use a solar panel as the input source for this charger module?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The module accepts any 4.5V–8V DC input, which makes it fully compatible with 5V solar panels. Simply connect your solar panel to the VIN+ terminal and the module will manage charging your 18650 battery while simultaneously providing adjustable boost output from the OUT+ terminal.\u003c\/p\u003e\n\u003ch4\u003eQ: What is the adjustable output voltage range of the step-up boost converter?\u003c\/h4\u003e\n\u003cp\u003eA: The boost output is adjustable from 4.3V up to 27V DC, allowing you to select common voltages such as 5V, 9V, 12V, and 24V to power a wide variety of devices and DIY electronics projects from a single lithium cell.\u003c\/p\u003e\n\u003ch4\u003eQ: Is this module suitable for building a DIY portable power bank?\u003c\/h4\u003e\n\u003cp\u003eA: Absolutely. The combination of a lithium battery charger and a step-up boost converter on one board makes it an excellent foundation for custom DIY power banks. You can charge the internal 18650 cell via USB or solar input and output a stable 5V (or other voltage) to power your devices.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What types of batteries can this 18650 charger module charge?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This module is designed for standard 3.7V lithium-ion (Li-ion) and lithium polymer (LiPo) cells, including popular 18650 format batteries. It delivers a regulated 4.2V charging voltage at up to 1A — the correct charge profile for most 3.7V lithium cells.\"}}, {\"@type\": \"Question\", \"name\": \"Can I use a solar panel as the input source for this charger module?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! The module accepts any 4.5V–8V DC input, which makes it fully compatible with 5V solar panels. Simply connect your solar panel to the VIN+ terminal and the module will manage charging your 18650 battery while simultaneously providing adjustable boost output from the OUT+ terminal.\"}}, {\"@type\": \"Question\", \"name\": \"What is the adjustable output voltage range of the step-up boost converter?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The boost output is adjustable from 4.3V up to 27V DC, allowing you to select common voltages such as 5V, 9V, 12V, and 24V to power a wide variety of devices and DIY electronics projects from a single lithium cell.\"}}, {\"@type\": \"Question\", \"name\": \"Is this module suitable for building a DIY portable power bank?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Absolutely. The combination of a lithium battery charger and a step-up boost converter on one board makes it an excellent foundation for custom DIY power banks. You can charge the internal 18650 cell via USB or solar input and output a stable 5V (or other voltage) to power your devices.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/iv9cjv-gm.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/iv9cjv-gm.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"USB 18650 Li-ion Battery Charger \u0026 Step-Up Boost Module\", \"item\": \"https:\/\/iv9cjv-gm.myshopify.com\/products\/usb-18650-lithium-battery-charger-step-up-boost-module\"}]}\u003c\/script\u003e","brand":"PLUSH","offers":[{"title":"1pcs","offer_id":67211958452299,"sku":"14:1202#1pcs","price":7.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0788\/1071\/0091\/files\/S4d4f4e8cdac7470084e7bca0a9fc84dfm.webp?v=1791570937","url":"https:\/\/plushsaver.com\/products\/usb-18650-lithium-battery-charger-step-up-boost-module","provider":"PLUSH","version":"1.0","type":"link"}