{"product_id":"lithium-li-ion-18650-3-7v-battery-charger-board","title":"Adjustable 3.7V Lithium Battery Boost Charger Module (5-27V Output)","description":"\u003cp\u003e\u003cb\u003eUnleash Versatility with Our 3.7V Lithium Battery Boost Charger Module!\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThis compact and powerful module is an essential tool for DIY enthusiasts, electronics hobbyists, and anyone looking to efficiently charge 3.7V lithium batteries while simultaneously boosting the output voltage for various applications. Whether you're upgrading a multimeter, powering custom projects, or building portable solutions, this module offers unparalleled flexibility.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eKey Features:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eWide Input Voltage Range:\u003c\/b\u003e Accepts 4.5V to 8V, making it compatible with various power sources, including 5V solar panels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAdjustable Output Voltage (4.3V - 27V):\u003c\/b\u003e Easily set the precise output voltage required for your specific project. Simply turn the potentiometer counter-clockwise to increase the voltage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIntegrated Lithium Battery Charger:\u003c\/b\u003e Features a dedicated BAT+ output for charging 3.7V lithium-ion batteries (e.g., 18650 cells) with a charging voltage of 4.2V and a maximum current of 1A.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh Discharge Current:\u003c\/b\u003e Supports a maximum discharge current of 2A, providing robust power for your applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOvercharge Protection:\u003c\/b\u003e Built-in overcharge protection ensures the safety and longevity of your batteries.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCompact Design:\u003c\/b\u003e With dimensions of 3.3cm x 2.3cm x 0.9cm, it's perfect for integration into space-constrained projects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLow Static Current:\u003c\/b\u003e Consumes only about 0.5mA in static mode, minimizing power drain.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eHow it Works:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThis module functions as both a boost converter and a lithium battery charger. You can connect your input power (e.g., a 5V solar panel) to the VIN+ and VIN- terminals. The BAT+ and BAT- terminals are designed for connecting your 3.7V lithium battery for charging. Simultaneously, the OUT+ and OUT- terminals provide an adjustable boosted voltage (4.3V to 27V) for powering your desired devices.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eIdeal for:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eModifying multimeters\u003c\/li\u003e\n\u003cli\u003eDIY portable power banks\u003c\/li\u003e\n\u003cli\u003eCustom electronics projects\u003c\/li\u003e\n\u003cli\u003eSolar charging solutions\u003c\/li\u003e\n\u003cli\u003eAnd much more!\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eImportant Notes:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eDefault Output:\u003c\/b\u003e The default output voltage is approximately 9V. Please adjust the potentiometer to your desired output before use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOutput Current Calculation:\u003c\/b\u003e The output current needs to be calculated based on your specific load. Reference maximum output currents are 1.4A at 5V, 0.8A at 9V, and 0.6A at 12V.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOver-discharge Protection:\u003c\/b\u003e While there is a 2V boost cutoff, true over-discharge protection that completely locks the output is not present. Consider adding an external protection board for critical applications if deep discharge is a concern.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":35696922919063,"sku":"","price":83.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/products\/lithium-battery-boost-charger-module-main.jpg?v=1753322334","url":"https:\/\/scccltd.com\/en-tw\/products\/lithium-li-ion-18650-3-7v-battery-charger-board","provider":"Sun Cheong Computer Company Limited","version":"1.0","type":"link"}