{"product_id":"tp4056-1a-li-ion-charger-module-with-protection-micro-usb","title":"TP4056 1A Li-Ion Charger Module with Protection – Micro USB","description":"\u003ch1\u003eTP4056 1A Lithium Battery Charger Module – Micro USB \u0026amp; Protection\u003c\/h1\u003e\n\n\u003cp\u003eThe TP4056 module is a complete constant-current\/constant-voltage linear charger for single-cell lithium-ion batteries. It features a micro USB input for easy charging from any USB port, and includes battery protection circuitry to prevent over-discharge, over-current, and short circuits. Compact and efficient, it is ideal for portable projects.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e4.5V – 5.5V (micro USB or IN pads)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCharge Current\u003c\/td\u003e\n\u003ctd\u003eUp to 1A (adjustable via resistor)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCharge Cut-off Voltage\u003c\/td\u003e\n\u003ctd\u003e4.2V ±1%\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eBattery Protection\u003c\/td\u003e\n\u003ctd\u003eOver-discharge, over-current, short circuit (DW01A IC)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eApprox. 25mm x 18mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eIndicators\u003c\/td\u003e\n\u003ctd\u003eRed LED (charging), Blue LED (full)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhat You Can Build With This\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePortable USB power bank using a 3.7V Li-Ion cell\u003c\/li\u003e\n  \u003cli\u003eBattery supply for Arduino or ESP32 projects with built-in charging\u003c\/li\u003e\n  \u003cli\u003eDIY Bluetooth speaker with rechargeable battery\u003c\/li\u003e\n  \u003cli\u003eSolar-powered charger when paired with a 5V solar panel\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis module is designed for single-cell lithium-ion or lithium-polymer batteries with a nominal voltage of 3.7V, such as 18650, 14500, or pouch cells. It works with any standard 5V USB source and can also be powered via the IN+ and IN- pads. The output voltage follows the battery voltage and is not regulated; for a stable 5V output, pair it with a boost converter like the MT3608.\u003c\/p\u003e\n\n\u003ch2\u003eWiring Notes\u003c\/h2\u003e\n\u003cp\u003eConnect the battery to B+ (positive) and B- (negative) terminals, ensuring correct polarity. Power input is through the micro USB port or the IN pads; do not exceed 5.5V. The module includes a DW01A protection IC, so you can safely leave the battery connected during charging. For continuous load operation, consider using a load-sharing circuit.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Buy from Compoden\u003c\/h2\u003e\n\u003cp\u003eEvery component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.\u003c\/p\u003e\n\n\u003cdetails\u003e\u003csummary\u003eIs this compatible with 18650 batteries?\u003c\/summary\u003e\u003cp\u003eYes, the TP4056 module is specifically designed for single-cell lithium-ion batteries like 18650 cells. Just ensure your battery is not deeply discharged below 2.5V before connecting.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDoes this module provide battery protection?\u003c\/summary\u003e\u003cp\u003eYes, most TP4056 modules, including this one, include the DW01A protection IC that prevents over-discharge, over-current, and short circuits, making them safe for permanent battery connections.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I charge and use the battery at the same time?\u003c\/summary\u003e\u003cp\u003eThe TP4056 alone does not support simultaneous charge and discharge safely. To power a load while charging, you'll need a load-sharing circuit or a dedicated charger module with that feature.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv class=\"compoden-handoff\" style=\"margin-top:24px;padding:16px;background:#f0f4ff;border-left:4px solid #2B4D8F;border-radius:4px;\"\u003e\n  \u003cp style=\"margin:0 0 6px 0;font-weight:600;color:#1A3560;\"\u003e📦 Free Setup Handoff Document Included\u003c\/p\u003e\n  \u003cp style=\"margin:0;font-size:0.95em;color:#333;\"\u003eEvery Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.\u003c\/p\u003e\n\u003c\/div\u003e\n","brand":"Compoden","offers":[{"title":"Default Title","offer_id":53445041488237,"sku":"CDN-0845","price":85.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0999\/3997\/5533\/files\/image_1_71d3808d-f906-45c0-a617-428052f14216.jpg?v=1781513029","url":"https:\/\/compoden.com\/products\/tp4056-1a-li-ion-charger-module-with-protection-micro-usb","provider":"Compoden","version":"1.0","type":"link"}