{"product_id":"3-7v-400ma-lithium-battery-charger-sm2p-plug-cord-power-bank","title":"3.7V 400mA Lithium Battery Charger SM2P Plug Cord Power Bank","description":"\u003cp\u003eKeep your lithium-powered devices topped up and ready with the \u003cstrong\u003e3.7V 400mA Lithium Battery Charger with SM2P Forward Plug\u003c\/strong\u003e. Designed for power bank modules and single-cell lithium battery packs, this compact charging cord delivers steady, controlled power through an intelligent IC control circuit — ensuring constant voltage and current throughout every charging cycle.\u003c\/p\u003e\n\n\u003cp\u003eBuilt from durable \u003cstrong\u003eplastic and metal\u003c\/strong\u003e, this charger is engineered to last. Its intelligent protection circuitry automatically manages the charging process, helping to safeguard your battery from overcharge and voltage irregularities. Whether you're maintaining a DIY power bank, a small electronic project, or a rechargeable module, this cord is a reliable everyday tool.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutput:\u003c\/strong\u003e 3.7V \/ 400mA — ideal for single-cell lithium battery charging\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnector:\u003c\/strong\u003e SM2P forward plug for secure, polarity-correct connections\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIntelligent IC Control:\u003c\/strong\u003e Constant voltage and constant current (CV\/CC) charging for consistent, safe performance\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIntelligent Protection:\u003c\/strong\u003e Built-in overcharge protection circuitry\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e60cm Cord Length:\u003c\/strong\u003e Flexible reach for a variety of setups and workspaces\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterials:\u003c\/strong\u003e Sturdy plastic and metal construction\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Design:\u003c\/strong\u003e Easy to store, carry, and use in tight spaces\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat's in the Box?\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × 3.7V 400mA Lithium Battery Charger with SM2P Forward Plug Cord\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho Is This For?\u003c\/h2\u003e\n\u003cp\u003eThis charger is perfect for electronics hobbyists, makers, and anyone who works with single-cell lithium battery modules. It's a simple, no-fuss solution for power bank maintenance, DIY electronics projects, and small rechargeable battery applications.\u003c\/p\u003e\n\n\u003cp\u003eFor more information on safe lithium battery charging practices, refer to guidance from the U.S. Consumer Product Safety Commission (CPSC).\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What type of batteries is the 3.7V 400mA SM2P Lithium Battery Charger compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: This charger is designed for single-cell 3.7V lithium-ion or lithium polymer batteries, commonly found in power bank modules, DIY electronics projects, and small rechargeable devices. Always verify your battery's voltage and connector type before use.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What does the SM2P forward plug connector mean?\u003c\/h4\u003e\n\u003cp\u003eA: The SM2P connector is a 2-pin JST-SM style plug commonly used in lithium battery packs and power bank modules. The \"forward plug\" orientation ensures correct polarity alignment, reducing the risk of incorrect connection during charging.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What safety features does this lithium battery charger have?\u003c\/h4\u003e\n\u003cp\u003eA: The charger features an intelligent IC control circuit that delivers constant voltage and constant current (CV\/CC) charging. It also includes built-in overcharge protection, which automatically manages the charging process to help protect your battery's health and longevity.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the cord length on this charger?\u003c\/h4\u003e\n\u003cp\u003eA: The charging cord is approximately 60cm (about 24 inches) long, giving you flexible reach for use in various workspaces, project setups, or charging stations.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What type of batteries is the 3.7V 400mA SM2P Lithium Battery Charger compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This charger is designed for single-cell 3.7V lithium-ion or lithium polymer batteries, commonly found in power bank modules, DIY electronics projects, and small rechargeable devices. 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