{"product_id":"usb-c-3a-lithium-battery-charger-module-5v-to-4-2v","title":"USB-C 3A Lithium Battery Charger Module (5V To 4.2V)","description":"\u003cp\u003e\u003cspan\u003eThis compact USB Type-C charging module provides fast, efficient charging for \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003esingle-cell lithium-ion and lithium-polymer batteries\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Built around the\u003cstrong\u003e \u003c\/strong\u003e\u003c\/span\u003eIP2312 charging controller\u003cspan\u003e, it supports charging currents up to \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e3A\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and uses a multi-stage \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eCC\/CV charging process\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e for reliable battery charging.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe module supports both \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eUSB-C to USB-C\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eUSB-A to USB-C\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e cables.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eUp to \u003c\/span\u003e3A charging current\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUSB Type-C input\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSolder pads input\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSupports \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eUSB-C to USB-C\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eUSB-A to USB-C\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e cables\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDesigned for \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003esingle-cell 4.2V lithium batteries\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAutomatic trickle, constant-current, and constant-voltage charging\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAutomatic charging restart when battery voltage drops\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eAdjustable charging current\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eRed and blue charging-status indicators\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eUp to \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e95% conversion efficiency\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCompact design for DIY electronics and embedded applications\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable style=\"width: 100%; height: 235.126px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 52.5193%; height: 19.5938px;\"\u003e\u003cspan\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003cth style=\"width: 44.6488%; height: 19.5938px;\"\u003e\u003cspan\u003eValue\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 52.5193%; height: 19.5938px;\"\u003e\u003cspan\u003eMain Control Chip\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 44.6488%; height: 19.5938px;\"\u003e\u003cspan\u003eIP2312\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 52.5193%; height: 19.5938px;\"\u003e\u003cspan\u003eInput Voltage\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 44.6488%; height: 19.5938px;\"\u003e\u003cspan\u003e4.5V–5.5V DC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 52.5193%; height: 19.5938px;\"\u003e\u003cspan\u003eRecommended Input\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 44.6488%; height: 19.5938px;\"\u003e\u003cspan\u003e5V USB\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 52.5193%; height: 19.5938px;\"\u003e\u003cspan\u003eCharging Cut-Off Voltage\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 44.6488%; height: 19.5938px;\"\u003e\u003cspan\u003e4.2V\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 52.5193%; height: 19.5938px;\"\u003e\u003cspan\u003eDefault Charging Current\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 44.6488%; height: 19.5938px;\"\u003e\u003cspan\u003e3A\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 52.5193%; height: 19.5938px;\"\u003e\u003cspan\u003eAdjustable Current\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 44.6488%; height: 19.5938px;\"\u003e\u003cspan\u003e1A \/ 2A \/ 3A\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 52.5193%; height: 19.5938px;\"\u003e\u003cspan\u003eConversion Efficiency at 3A\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 44.6488%; height: 19.5938px;\"\u003e\u003cspan\u003e93%\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 52.5193%; height: 19.5938px;\"\u003e\u003cspan\u003eConversion Efficiency at 2A\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 44.6488%; height: 19.5938px;\"\u003e\u003cspan\u003e94%\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 52.5193%; height: 19.5938px;\"\u003e\u003cspan\u003eConversion Efficiency at 1A\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 44.6488%; height: 19.5938px;\"\u003e\u003cspan\u003e95%\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 52.5193%; height: 19.5938px;\"\u003e\u003cspan\u003eUSB Connection\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 44.6488%; height: 19.5938px;\"\u003e\u003cspan\u003eUSB Type-C\/Solder Pads\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 52.5193%; height: 19.5938px;\"\u003e\u003cspan\u003eBattery Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 44.6488%; height: 19.5938px;\"\u003e\u003cspan\u003eSingle-cell Li-ion \/ LiPo\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTrickle Charging\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen the battery voltage is below \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e3.0V\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, the module enters trickle-charge mode and charges the battery at \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e100mA\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eConstant-Current Charging\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOnce the battery voltage rises above \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e3.0V\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, the charger switches to constant-current mode and charges at the configured current.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe default charging current is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e3A\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eConstant-Voltage Charging\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAs the battery approaches \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e4.2V\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and the charging current falls below \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e300mA\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, the charger enters constant-voltage mode.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDuring this stage, the module periodically checks the battery voltage. If the battery voltage is above approximately \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e4.15V\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, charging stops. If the voltage remains below this level, charging continues, and the battery is checked again.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAutomatic Recharge\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAfter charging is complete, the module continues monitoring the battery. If the battery voltage drops below approximately \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e4.1V\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, charging automatically begins again.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eLED Indicators\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eRed LED:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Charging\/working\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBlue LED:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Fully charged\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eCharging Current Adjustment\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe module is configured for \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e3A charging by default\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe charging current can be changed by modifying the current-setting resistor:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e3A: D\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003eefault\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e2A:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Remove the current-setting resistor\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e1A:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Replace the current-setting resistor with a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e135kΩ resistor\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eImportant\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThis charger is designed for \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eone 3.7V nominal lithium-ion or lithium-polymer cell with a 4.2V maximum charging voltage\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor safe operation, ensure the battery is rated to accept the selected charging current. A battery with a maximum charge current below 3A should have the module configured to a lower charging current before use.\u003c\/span\u003e\u003c\/p\u003e","brand":"PCB Studios","offers":[{"title":"Heatsink Pre-applied","offer_id":67198134878283,"sku":null,"price":9.99,"currency_code":"USD","in_stock":true},{"title":"Heatsink In Separate Bag","offer_id":67198134911051,"sku":null,"price":9.99,"currency_code":"USD","in_stock":false},{"title":"No Heatsink","offer_id":67198134943819,"sku":null,"price":8.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/4004\/1291\/files\/IMG_3401.jpg?v=1791411194","url":"https:\/\/www.pcb-studios.com\/products\/usb-c-3a-lithium-battery-charger-module-5v-to-4-2v","provider":"PCB Studios","version":"1.0","type":"link"}