{"product_id":"makerfocus-4x-3-7v-3000mah-lipo-batteries-with-protection-board-for-esp32-mesh-node","title":"MakerFocus 4x 3.7V 3000mAh LiPo Batteries with Protection Board for ESP32 Mesh Node","description":"\u003ch2\u003ePowerful, compact LiPo power for ESP32 and IoT projects\u003c\/h2\u003e\n\u003cp\u003eThis MakerFocus kit brings four 3.7V 3000mAh LiPo cells with an integrated protection board, a JST 1.25 plug, and insulated rubber tape. Designed for compact ESP32 development boards and mesh nodes, the pack delivers reliable energy while keeping setup tidy and safe. Each cell contributes energy in a compact footprint, making it easy to power mobile prototypes, remote sensors, or hobbyist IoT projects.\u003c\/p\u003e\n\u003ch3\u003eProtection and safety features\u003c\/h3\u003e\n\u003cp\u003eThe built-in protection board is designed to manage charging and discharging, helping to reduce risk during use. It includes several safeguards to help prevent common risks in daily tinkering, while keeping the focus on practical, hands-on experiments.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOvercharge protection: the board automatically powers off when the battery reaches 4.2V, stopping further charging.\u003c\/li\u003e\n  \u003cli\u003eOver-discharge protection: the board cuts power near 3.0V to prevent deep discharge.\u003c\/li\u003e\n  \u003cli\u003eShort circuit protection: in the unlikely event of a fault, the protection circuit responds within milliseconds.\u003c\/li\u003e\n  \u003cli\u003eNote on overcurrent: avoid pushing current beyond recommended limits to prevent protection board damage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCharging, discharging and performance guidelines\u003c\/h3\u003e\n\u003cp\u003eKey operating parameters are provided to help you plan safe, repeatable use in your projects. The cells are rated for nominal 3.7V with a 4.2V charge cut-off and 3.0V discharge cut-off. Typical capacity is 3000mAh per cell, with energy roughly 11.1Wh per cell. The standard charging method involves an initial constant current followed by a constant voltage stage until the charge current drops.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCharge current: 0.2C is typical; do not exceed 0.5C or the stated maximum of 1.5A for charging or discharging.\u003c\/li\u003e\n  \u003cli\u003eDischarge current: max 0.5C; avoid sustained high drains that can reduce performance or heat the pack.\u003c\/li\u003e\n  \u003cli\u003eTemperature ranges: charging is specified between 0 and 15 C (with limits), and 15 to 45 C for regular use; discharge operates from -10 to 60 C.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eStorage and care\u003c\/h3\u003e\n\u003cp\u003eFor best longevity, store the batteries in a cool, dry, well-ventilated place away from heat sources. Maintain a storage state around 30 to 50 percent capacity, with a voltage around 3.7 to 3.9V. If storage exceeds six months, plan a periodic recharge. Always keep the pack within recommended temperature and humidity ranges when not in use.\u003c\/p\u003e\n\u003ch3\u003eReal-world use and what you get\u003c\/h3\u003e\n\u003cp\u003eWhether you are powering an ESP32 development board, a small mesh node, or portable sensors, this 4 pack provides dependable energy with built-in safeguards. The package includes insulated tape for safe handling and a JST 1.25 plug for quick, compatible connections.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e4 x 11.1Wh 3000mAh 3.7V LiPo rechargeable batteries\u003c\/li\u003e\n  \u003cli\u003eIntegrated protection board with overcharge, over-discharge, and short-circuit safeguards\u003c\/li\u003e\n  \u003cli\u003eInsulated rubber tape for safe storage and handling\u003c\/li\u003e\n  \u003cli\u003eJST 1.25 plug for ESP32 compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNote: While the protection features enhance safety, always follow general battery care guidelines and never expose cells to heat, moisture, or mechanical damage.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What comes in the MakerFocus 4pcs 3.7V LiPo Battery kit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Four 3000mAh 3.7V LiPo cells, one integrated protection board, insulated rubber tape, and a JST 1.25 plug for ESP32 compatibility.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What are the key safety or charging guidelines?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Charge up to 1.5A, not exceeding 4.2V, avoid reverse charging, and store at 30-50% between 3.7 and 3.9V in a cool, dry place.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"MakerFocus","offers":[{"title":"Default Title","offer_id":55116647760040,"sku":"B08T6GT7DV","price":73.79,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/2990\/9672\/files\/makerfocus-4pcs-3000mah-3-7v-lipo-battery-front.jpg?v=1767743392","url":"https:\/\/toygame.ca\/products\/makerfocus-4x-3-7v-3000mah-lipo-batteries-with-protection-board-for-esp32-mesh-node","provider":"Toygame Canada | Playtime Starts Here ","version":"1.0","type":"link"}