{"product_id":"daly-smart-bms-4s-12v-40a-100a-150a-250a-for-lifepo4-battery","title":"Daly Smart BMS 4S 12V 40A 100A 150A 200A 250A for LiFePO4 Battery","description":"\u003ch2\u003eHeavy-Duty Smart Protection for Your LiFePO4 Battery Bank\u003c\/h2\u003e\n\u003cp\u003eUpgrade your solar system, RV, or marine battery bank with the \u003cstrong\u003eDaly Smart BMS 4S 12V 40A\/60A\/100A\/150A\/200A\/200A,\u003c\/strong\u003e Engineered specifically for 3.2V LiFePO4 cells, this premium intelligent Battery Management System ensures your energy storage operates at peak efficiency while offering military-grade safety protections.\u003c\/p\u003e\n\u003cp\u003eEquipped with additional \u003cstrong\u003eBluetooth module\u003c\/strong\u003e, you can monitor your cell voltages, real-time current, and battery health instantly via the Smart APP (iOS\/Android).\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0630\/9439\/0881\/files\/H_11.jpg?v=1780562227\"\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e🛡️ 6-Fold Military-Grade Safety Protections\u003c\/h3\u003e\n\u003cp\u003eNever worry about overcharging or thermal runaway. The Daly Smart BMS monitors your pack 24\/7 with lightning-fast response times:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOver-Charge Protection:\u003c\/strong\u003e Prevents cell damage during high-current charging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOver-Discharge Protection:\u003c\/strong\u003e Stops your battery from draining past the safe voltage threshold.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOver-Current Protection:\u003c\/strong\u003e Instantly cuts off the circuit during unexpected power surges.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShort-Circuit Protection:\u003c\/strong\u003e Features a built-in automatic fuse mechanism.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Protection:\u003c\/strong\u003e Monitored by an external NTC sensor to prevent charging below 0°C (32°F) or overheating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmart Cell Balancing:\u003c\/strong\u003e Extends your battery lifespan by keeping all 4 cells at equal voltage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0630\/9439\/0881\/files\/H_14.jpg?v=1780561990\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0630\/9439\/0881\/files\/H_15.jpg?v=1780561991\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0630\/9439\/0881\/files\/H_16.jpg?v=1780561994\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0630\/9439\/0881\/files\/M__08.jpg?v=1780562260\"\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e📊 Comprehensive Technical Specifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f2f2f2;\"\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd; text-align: left;\"\u003eParameter\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #ddd; text-align: left;\"\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBattery Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e4S 12V LiFePO4 (3.2V Nominal Per Cell)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eContinuous Discharge Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e40A \/ 60A \/ 100A \/ 150A \/ 200A \/ 250A (Optional)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eMax Charging Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e40A (for 40A) \/ 100A (for 100A) \/ 150A (for 150A) \/ 200A (for 200A) \/ 250A (for 250A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eCommunication Interface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eUART \/ Bluetooth APP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eBalance Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e100mA ± 30mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eAccessories\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eBluetooth\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0630\/9439\/0881\/files\/74c8853772d99be82b0190f571670f28.png?v=1780561124\"\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003e📦 What's in the Box? (Full Kit Included)\u003c\/h3\u003e\n\u003cp\u003eEvery package comes as a complete kit, ready for installation:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eDaly Smart BMS \u003c\/strong\u003e × 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal Bluetooth Module\u003c\/strong\u003e × 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMatched Sampling Balance Wires\u003c\/strong\u003e × 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNTC Temperature Sensor Cable\u003c\/strong\u003e × 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstruction Manual \u0026amp; Wiring Diagram\u003c\/strong\u003e × 1\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0630\/9439\/0881\/files\/M_-2_11_5bed9478-ae70-44cf-a3ce-fcb17fa0bfa5.jpg?v=1780907571\" alt=\"\"\u003e\u003c\/div\u003e\n\u003chr\u003e\n\u003ch3\u003e⚠️ Crucial Installation Note for DIYers\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWiring Order is Everything:\u003c\/strong\u003e Always connect the \u003cstrong\u003eB- cable\u003c\/strong\u003e (Main Negative) to the battery pack first, then plug in the sampling balance wires (from B0 to B4). Never plug in the balance wires before the main negative cable is securely fastened, or you may damage the BMS chips instantly.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0630\/9439\/0881\/files\/M_-2_13.jpg?v=1780560697\" alt=\"Daly Smart BMS 4S 12V Wiring Diagram for LiFePO4 Battery\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003chr\u003e\n\u003ch3\u003e🌍 Versatile Applications \u0026amp; Use Cases\u003c\/h3\u003e\n\u003cp\u003eThe Daly Smart BMS 4S 12V is the heavy-duty control center for a wide range of deep-cycle LiFePO4 battery setups. Whether you are building an off-grid power system or upgrading your vehicle's energy storage, this BMS is perfectly optimized for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRV \u0026amp; Camper Van House Batteries:\u003c\/strong\u003e Keeps your living space powered safely during long boondocking trips.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOff-Grid Solar Power Walls:\u003c\/strong\u003e Integrates seamlessly with solar charge controllers and low-voltage inverters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine \u0026amp; Boats:\u003c\/strong\u003e Provides reliable power for trolling motors, fish finders, and onboard electronics (IP65 waterproof protection).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGolf Carts \u0026amp; Electric Vehicles:\u003c\/strong\u003e Handles high continuous discharge currents with stability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIY LiFePO4 Power Stations:\u003c\/strong\u003e The safest choice for enthusiasts building custom battery packs using EVE, CATL, or Lishen 3.2V cells.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0630\/9439\/0881\/files\/M_-1_05_62adc161-a867-4ff3-8ec9-cfb2a825d89c.jpg?v=1780562378\" alt=\"\"\u003e\u003c\/p\u003e","brand":"AmpBird","offers":[{"title":"4S40A UART BT","offer_id":45075905314913,"sku":"TL4S40A-BT","price":32.8,"currency_code":"USD","in_stock":true},{"title":"4S60A UART BT","offer_id":45075905347681,"sku":"TL4S60A-BT","price":37.6,"currency_code":"USD","in_stock":true},{"title":"4S100A UART BT","offer_id":45075905380449,"sku":"TL4S100A-BT","price":52.8,"currency_code":"USD","in_stock":true},{"title":"4S150A UART BT","offer_id":45075905413217,"sku":"TL4S150A-BT","price":76.8,"currency_code":"USD","in_stock":true},{"title":"4S200A UART BT","offer_id":45075905445985,"sku":"TL4S200A-BT","price":82.8,"currency_code":"USD","in_stock":true},{"title":"4S250A UART BT","offer_id":45075905478753,"sku":"TL4S250A-BT","price":120.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0630\/9439\/0881\/files\/ChatGPT_Image_2026_6_8_11_01_56.png?v=1780906988","url":"https:\/\/www.ampbird.com\/products\/daly-smart-bms-4s-12v-40a-100a-150a-250a-for-lifepo4-battery","provider":"AmpBird","version":"1.0","type":"link"}