{"product_id":"3-7v-4-2v-mini-lithium-battery-charging-board-module-18650-lithium-battery-charger-protection-board-type-c-interface","title":"3 7V 4 2V Mini Lithium Battery Charging Board Module 18650 Charger","description":"\u003cp\u003eDiscover the 3 7V 4 2V Mini Lithium Battery Charging Board Module 18650 Charger — a standout electronics accessories pick featuring long-lasting, compact design for dependable, everyday performance.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cp\u003eAccessory Type: Battery Accessories\u003c\/p\u003e\u003cp\u003eCharger included: N\u003c\/p\u003e\u003cp\u003eElectronic: no\u003c\/p\u003e\u003cp\u003eItem Type: others\u003c\/p\u003e\u003cp\u003eOutput Power: ＜18.65\u003c\/p\u003e\u003cp\u003ePCBincluded: No\u003c\/p\u003e\u003cp\u003eUse: others\u003c\/p\u003e\u003cp\u003eVoltage range: USB (5-20V DC)\u003c\/p\u003e\u003cp\u003eProduct Features:\u003c\/p\u003e\u003cp\u003e1. Ultra-compact design for seamless integration into smart wearables, micro drones, and other confined spaces\u003c\/p\u003e\u003cp\u003e2. Constant current\/constant voltage charging modes maximize charging speed while preventing overheating risks\u003c\/p\u003e\u003cp\u003e3. Automatic recharge function maintains lithium batteries in optimal condition\u003c\/p\u003e\u003cp\u003e4. Precise charging voltage of 4.2V (±1%) safeguards battery safety and extends lifespan\u003c\/p\u003e\u003cp\u003e5. Trickle charging threshold of 2.8V effectively restores health to low-voltage batteries\u003c\/p\u003e\u003cp\u003eProduct Specifications:\u003c\/p\u003e\u003cp\u003eProduct Name: Mini Lithium Battery Charging Board Module\u003c\/p\u003e\u003cp\u003eCharging Current: 600mA\u003c\/p\u003e\u003cp\u003eCharging Voltage: DC 4.2V (±1% accuracy)\u003c\/p\u003e\u003cp\u003eTrickle Charge Threshold: 2.8V\u003c\/p\u003e\u003cp\u003eFeatures:\u003c\/p\u003e\u003cp\u003e1. Constant current\/constant voltage charging mode with thermal regulation ensures maximum charging speed while preventing overheating\u003c\/p\u003e\u003cp\u003e2. Supports charge current monitoring output with battery level detection\u003c\/p\u003e\u003cp\u003e3. Automatic recharge function\u003c\/p\u003e\u003cp\u003eDimensions: 10x7.5x5.2mm\u003c\/p\u003e\u003cp\u003eDescription: Ultra-compact design. This 3.7V lithium battery charging board features an ultra-compact design that easily integrates into smart wearables, micro drones, IoT devices, electric mosquito swatters, and other confined spaces—it even fits directly into the space at the end of a standard charging cable. Simply connect the positive and negative terminals to the battery terminals for use. Minimalist design, ultimate performance—maximizing every inch of space to infuse creative tech products with efficient, long-lasting power.\u003c\/p\u003e\u003cp\u003eShipping Contents:\u003c\/p\u003e\u003cp\u003eModule x1\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003ch4\u003eQ: What is the 3 7V 4 2V Mini Lithium Battery Charging Board Module 18650?\u003c\/h4\u003e\u003cp\u003eA: The 3 7V 4 2V Mini Lithium Battery Charging Board Module 18650 is a quality electronics accessories pick. Ultra-compact design for seamless integration into smart wearables, micro drones, and other confined spaces 2.\u003c\/p\u003e\u003ch4\u003eQ: How do I use the 3 7V 4 2V Mini Lithium Battery Charging Board Module 18650?\u003c\/h4\u003e\u003cp\u003eA: The 3 7V 4 2V Mini Lithium Battery Charging Board Module 18650 is ready to use right out of the box and makes an easy addition to your electronics accessories lineup.\u003c\/p\u003e\u003ch4\u003eQ: Why choose the 3 7V 4 2V Mini Lithium Battery Charging Board Module 18650?\u003c\/h4\u003e\u003cp\u003eA: The 3 7V 4 2V Mini Lithium Battery Charging Board Module 18650 stands out in our electronics accessories range — Constant current\/constant voltage charging modes maximize charging speed while preventing overheating risks 3.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the 3 7V 4 2V Mini Lithium Battery Charging Board Module 18650?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The 3 7V 4 2V Mini Lithium Battery Charging Board Module 18650 is a quality electronics accessories pick. 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