{"product_id":"4s-li-ion-bms-board-16-8v-30a-battery-management-system-with-balancing","title":"4S Li-ion BMS Board 16.8V 30A – Battery Management System with Balancing","description":"\u003ch2\u003e4S Li-ion \/ LiFePO4 BMS – Battery Management System\u003c\/h2\u003e\u003cp\u003eA high-current 4-series (4S) Battery Management System (BMS) board featuring 16 power MOSFETs for robust overcharge, over-discharge, overcurrent, and short-circuit protection. With onboard cell balancing pads (B+, B1, B2, B3, B−) and separate P− (discharge) and C− (charge) ports, this BMS is ideal for 18650 battery packs, e-bikes, solar storage, and DIY power walls.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e4S configuration: supports 4 series Li-ion cells (16.8V fully charged)\u003c\/li\u003e\n\u003cli\u003e16 power MOSFETs for high current handling (30A continuous)\u003c\/li\u003e\n\u003cli\u003eCell balancing pads: B+, B1, B2, B3, B−\u003c\/li\u003e\n\u003cli\u003eSeparate P− (discharge) and C− (charge) terminals\u003c\/li\u003e\n\u003cli\u003eOvercharge protection per cell\u003c\/li\u003e\n\u003cli\u003eOver-discharge protection\u003c\/li\u003e\n\u003cli\u003eOvercurrent and short-circuit protection\u003c\/li\u003e\n\u003cli\u003eCompact white PCB with SMD components\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eConfiguration: 4S (4 cells in series)\u003c\/li\u003e\n\u003cli\u003eCell Chemistry: Li-ion \/ LiPo (4.2V\/cell) or LiFePO4 (3.65V\/cell)\u003c\/li\u003e\n\u003cli\u003eFull Charge Voltage: 16.8V (Li-ion)\u003c\/li\u003e\n\u003cli\u003eContinuous Discharge Current: 30A\u003c\/li\u003e\n\u003cli\u003ePeak Current: 60A (short burst)\u003c\/li\u003e\n\u003cli\u003eBalancing: Passive cell balancing\u003c\/li\u003e\n\u003cli\u003ePorts: B+, B1, B2, B3, B−, P−, C−\u003c\/li\u003e\n\u003cli\u003eMOSFET Count: 16\u003c\/li\u003e\n\u003cli\u003eDimensions: ~70 × 45mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e18650 \/ 21700 battery pack assembly\u003c\/li\u003e\n\u003cli\u003eE-bike and electric scooter battery packs\u003c\/li\u003e\n\u003cli\u003eSolar energy storage systems\u003c\/li\u003e\n\u003cli\u003eDIY power wall \/ UPS battery\u003c\/li\u003e\n\u003cli\u003ePortable power station builds\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Generic","offers":[{"title":"Default Title","offer_id":55874497413193,"sku":"BMS-4S-30A-16MOSFET","price":940.0,"currency_code":"PKR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/9090\/2089\/files\/WhatsApp_Image_2026-08-07_at_4.32.21_PM_2.jpg?v=1786103264","url":"https:\/\/lahorestore.pk\/products\/4s-li-ion-bms-board-16-8v-30a-battery-management-system-with-balancing","provider":"Lahore Store","version":"1.0","type":"link"}