{"product_id":"ayasoso-cd42-5v-2a-3-7v-4-2v-charge-and-discharge-power-module-integrated-boost-converter-for-lithium-battery-diy","title":"AYASOSO CD42 5V 2A 3.7V\/4.2V Charge and Discharge Power Module, Integrated Boost Converter for Lithium Battery, DIY","description":"\u003cdiv class=\"product-description\"\u003e\n\u003ch2\u003eCD42 5V 2A Charge and Discharge Power Module, Integrated Boost Converter for 3.7V\/4.2V Lithium Battery, DIY Power Bank \u0026amp; Charger Board\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAYASOSO CD42 5V 2A 3.7V\/4.2V Charge and Discharge Power Module, Integrated Boost Converter for Lithium Battery, DIY\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis module can perform step-down charging and step-up discharging for single-cell lithium batteries, supporting simultaneous charging and discharging. It is suitable for use in lithium batteries without a protection board for protection and has 4 power indicator lights. Multiple protections and high reliability include output overcurrent, overvoltage, and short-circuit protection; input overvoltage, overcharge, over-discharge, and overcurrent discharge protection; and overall over-temperature protection. Parameter Introduction Module Type: Lithium Battery Charge\/Discharge Protection Board Input Voltage: DC 4.5V-5.5V (DC 5V recommended) Charging Current: 0-2.1A Output Voltage: DC 5V (5.1V no-load output) Output Current: 2.4A max Module Interface: Pad (can also connect to 2.54mm header) Module Size: 25.4*16.0 (unit: mm) (Manual measurement, deviation may exist) When the module is properly connected to the lithium battery: (1) Input 5V charging, output no load: Module output is on. (2) No input power connected, output under load: When a load is connected to the output, the module will automatically turn on. The output voltage depends on the load; see the actual situation for details. Note: The module is always on. It will automatically turn on when a load is connected and will continue outputting continuously without being manually turned off.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e AYASOSO\u003c\/p\u003e\n\u003cp\u003eayasoso, discharge, power bank, charger board, controls indicators, bank, battery, lithium, power, scientific industrial, electrical controls, module Industrial \u0026amp; Scientific Industrial Electrical Controls \u0026amp; Indicators IO Modules\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ Integrated Charge \u0026amp; Discharge: Combines charging and discharging functions in one module, supporting efficient power management for single-cell 3.7V\/4.2V lithium batteries.\u003c\/li\u003e\n\u003cli\u003e✅ 5V 2A High Output: Boosts battery voltage to a stable 5V output with up to 2A current, ideal for powering mobile devices and DIY electronics.\u003c\/li\u003e\n\u003cli\u003e✅ Normally Open Design: Features a normally open (CK) version for enhanced safety and flexible power control in portable charging projects.\u003c\/li\u003e\n\u003cli\u003e✅ Wide Applications: Perfect for DIY power banks, portable chargers, electronic gadgets, and backup power solutions.\u003c\/li\u003e\n\u003cli\u003e✅ Easy Integration: Compact PCB with clear labeling and solder pads, making wiring and assembly simple for hobbyists and makers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e✅ Color: Black\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eShipping \u0026amp; Guarantees\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ FREE standard shipping within the United States (3 6 business days)\u003c\/li\u003e\n\u003cli\u003e✅ 100% money-back guarantee for lost or damaged items\u003c\/li\u003e\n\u003cli\u003e✅ Secure checkout with encrypted payment processing\u003c\/li\u003e\n\u003cli\u003e✅ Shipping via UPS, FedEx, and USPS\u003c\/li\u003e\n\u003cli\u003e✅ Ships to lower 48 states only (no PO Boxes \/ APO \/ FPO)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReturns\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ 30-day hassle-free returns\u003c\/li\u003e\n\u003cli\u003e✅ Items must be unused and in original packaging\u003c\/li\u003e\n\u003cli\u003e✅ Full refund if item is not delivered\u003c\/li\u003e\n\u003cli\u003e✅ Guaranteed delivery within 6 7 business days\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePayment Methods\u003c\/h3\u003e\n\u003cp\u003e✅ Credit Cards, PayPal, Shop Pay, Apple Pay, Google Pay, Amazon Pay, Meta Pay\u003c\/p\u003e\n\u003ch3\u003eCustomer Support\u003c\/h3\u003e\n\u003cp\u003e✅ Questions? Contact us at \u003cstrong\u003eSupport@GiftAbay.com\u003c\/strong\u003e\u003cbr\u003eWe respond within 24 hours on business days.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"AYASOSO","offers":[{"title":"Default Title","offer_id":66872206753837,"sku":"PGABL2860331","price":8.28,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/6067\/7677\/files\/518qqOM1KbL._SL1001_11f5f128-430f-44c1-8ffe-4aae3bdfd3af.jpg?v=1781703214","url":"https:\/\/prosupply.giftabay.com\/products\/ayasoso-cd42-5v-2a-3-7v-4-2v-charge-and-discharge-power-module-integrated-boost-converter-for-lithium-battery-diy","provider":"ProSupply.GiftAbay","version":"1.0","type":"link"}