{"product_id":"cd42-lithium-battery-boost-charge-module","title":"CD42 Lithium Battery Boost \u0026 Charge Module – 3.7V Li-ion Battery Charger \u0026 Step-Up Power Supply Module","description":"\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003eThe \u003cstrong\u003eCD42 Lithium Battery Boost \u0026amp; Charge Module\u003c\/strong\u003e is a compact power management module designed to \u003cstrong\u003echarge a single 3.7V lithium-ion battery and boost its voltage\u003c\/strong\u003e to a higher regulated output. It is an excellent solution for DIY electronics, portable power systems, IoT devices, and battery-powered embedded projects.\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThis module combines \u003cstrong\u003elithium battery charging and DC-DC boost functionality\u003c\/strong\u003e in a compact PCB, helping reduce the number of separate power-management circuits required in a project. It can be used with commonly available \u003cstrong\u003e18650 Li-ion cells and other compatible 3.7V rechargeable lithium batteries\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe CD42 module is particularly useful when a battery-powered project requires a higher voltage than the battery can directly provide. It can be integrated into projects using \u003cstrong\u003eArduino, ESP32, sensors, displays, LEDs, and other low-power electronics\u003c\/strong\u003e, subject to the module's output-current and voltage specifications.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e🚀 Key Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCombined \u003cstrong\u003eLi-ion battery charging + boost converter\u003c\/strong\u003e module\u003c\/li\u003e\n\u003cli\u003eDesigned for \u003cstrong\u003e3.7V rechargeable lithium batteries\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSuitable for single-cell Li-ion applications\u003c\/li\u003e\n\u003cli\u003eBoosts battery voltage to a higher DC output\u003c\/li\u003e\n\u003cli\u003eCompact and lightweight PCB design\u003c\/li\u003e\n\u003cli\u003eConvenient solution for portable electronics\u003c\/li\u003e\n\u003cli\u003eSuitable for DIY and embedded applications\u003c\/li\u003e\n\u003cli\u003eIdeal for battery-powered IoT projects\u003c\/li\u003e\n\u003cli\u003eEasy to integrate into custom electronic projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e📊 Technical Specifications\u003c\/h3\u003e\n\u003cdiv class=\"TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth class=\"last:pe-10\"\u003eParameter\u003c\/th\u003e\n\u003cth class=\"last:pe-10\"\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule\u003c\/td\u003e\n\u003ctd\u003eCD42\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eLithium Battery Charging + Boost\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Type\u003c\/td\u003e\n\u003ctd\u003e3.7V Li-ion \/ Li-Po\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Configuration\u003c\/td\u003e\n\u003ctd\u003e1 Cell (1S)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput\u003c\/td\u003e\n\u003ctd\u003eUSB\/DC input \u003cem\u003e(depending on module version)\u003c\/em\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput\u003c\/td\u003e\n\u003ctd\u003eBoosted DC voltage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery\u003c\/td\u003e\n\u003ctd\u003e3.7V rechargeable lithium battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003ePower Management \/ DC-DC Converter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003ePortable Electronics \u0026amp; IoT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Exact charging current, boost output voltage, maximum output current, connector type, and protection features can vary between CD42 module revisions. Please verify the specifications printed on the module before designing the final product.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e📦 Package Includes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e1 × CD42 Lithium Battery Boost \u0026amp; Charge Module\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eBattery and connecting wires are not included unless specifically mentioned in the selected product variant.\u003c\/em\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e💡 Recommended Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e18650 battery projects\u003c\/li\u003e\n\u003cli\u003ePortable power supplies\u003c\/li\u003e\n\u003cli\u003eDIY rechargeable electronics\u003c\/li\u003e\n\u003cli\u003eArduino battery-powered projects\u003c\/li\u003e\n\u003cli\u003eESP32 IoT devices\u003c\/li\u003e\n\u003cli\u003eLED lighting projects\u003c\/li\u003e\n\u003cli\u003eWireless sensor nodes\u003c\/li\u003e\n\u003cli\u003ePortable displays\u003c\/li\u003e\n\u003cli\u003eSmall robotics projects\u003c\/li\u003e\n\u003cli\u003eBattery-powered automation systems\u003c\/li\u003e\n\u003cli\u003eDIY electronic gadgets\u003c\/li\u003e\n\u003cli\u003eEmbedded power supply systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003e⚠️ Important Safety Information\u003c\/h3\u003e\n\u003cp\u003eUse only a \u003cstrong\u003ecompatible rechargeable lithium battery\u003c\/strong\u003e with the module and observe the correct battery polarity. Do not short-circuit the battery terminals or exceed the module's specified input\/output ratings.\u003c\/p\u003e\n\u003cp\u003eLithium-ion batteries can present a fire or damage hazard if improperly charged, connected, or handled. Use an appropriate battery with suitable protection and follow the module manufacturer's specifications.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e🌟 Why Choose the CD42 Module?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCombines charging and voltage boosting in one compact board\u003c\/li\u003e\n\u003cli\u003eReduces circuit complexity in portable projects\u003c\/li\u003e\n\u003cli\u003eUseful for powering electronics from a single Li-ion cell\u003c\/li\u003e\n\u003cli\u003eCompact form factor for space-constrained designs\u003c\/li\u003e\n\u003cli\u003eExcellent for DIY, IoT, robotics, and embedded applications\u003c\/li\u003e\n\u003cli\u003eConvenient solution for rechargeable battery-powered projects\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Elecsynergy","offers":[{"title":"Default Title","offer_id":64367021916529,"sku":null,"price":51.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/6579\/5185\/files\/images_19.jpg?v=1786170667","url":"https:\/\/elecsynergy.in\/products\/cd42-lithium-battery-boost-charge-module","provider":"Elecsynergy","version":"1.0","type":"link"}