{"product_id":"smart-bms-for-3s-and-4s-li-ion-battery-packs-12v-c","title":"Smart BMS for 3S and 4S Li-Ion Battery Packs, 12V Class, 400A Peak, 1A Active Balancing, Bluetooth Monitoring, Inductive Energy Transfer, Keeps Cell Gaps Under 10mV, DIY Battery Builds","description":"\u003cdiv\u003e12V BMS for 3S\/4S Li-ion packs with Bluetooth balancing\u003cbr\u003e\n✔️ 3S\/4S support, 1A active balancing, Bluetooth monitoring \u003cp\u003eThis compact BMS module supports 3S and 4S Li-ion packs and is suitable for 12V-class applications. It works with Li-ion, LiFePO4, and LiPo cells and is ideal for DIY battery builds powering portable power stations, e-scooters, solar storage, RV backups, and outdoor devices.\u003c\/p\u003e \u003cp\u003e✅ Supports 3S\/4S Li-ion, LiFePO4, LiPo cells\u003cbr\u003e✅ Inductive energy-transfer active balancing with 1A current\u003cbr\u003e✅ Keeps cell voltage gaps under 10 mV\u003cbr\u003e✅ 12V-class operation with real-time millisecond monitoring\u003cbr\u003e✅ 400A peak current capability\u003cbr\u003e✅ Built-in protections: overcharge, over-discharge, over-current, short-circuit, over-temperature\u003cbr\u003e\u003c\/p\u003e \u003cp\u003e💡 What is a handy use case for a BMS in DIY 12V packs? This quick FAQ explains practical benefits for 3S\/4S configurations:\n- Protects cells from overcharge and over-discharge\n- Monitors voltages in real time for safe operation\n- Balances cells via inductive energy transfer to minimize heat\u003c\/p\u003e✝️\u003c\/div\u003e","brand":"Amazon","offers":[{"title":"Default Title","offer_id":49072496607467,"sku":"VXB0H6L2KCF6","price":198.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/7151LcR-RYL.jpg?v=1784362619","url":"https:\/\/vxb.com\/products\/smart-bms-for-3s-and-4s-li-ion-battery-packs-12v-c","provider":"VXB Bearings","version":"1.0","type":"link"}