{"product_id":"pgybms-hardware-protection-board-pgy091-50a-4s-lifepo4-power-management-protection-module","title":"PGYBMS Hardware Protection Board PGY091 50A 4S LiFePO4 Power Management \u0026 Protection Module","description":"\u003cp\u003eThe PGY091 4S 50A BMS protection board is designed for monitoring and protecting 4-series LiFePO₄ battery packs.\u003cbr\u003eIt integrates reliable protection and passive balancing functions to ensure safe operation, improved cell consistency, and extended battery life.\u003c\/p\u003e\n\u003cp\u003eElectrical Specifications:\u003cbr\u003eBattery Configuration: 4S (LiFePO₄)\u003cbr\u003eNominal Pack Voltage: 12.8V\u003cbr\u003eMaximum Charge Voltage: 14.6V\u003cbr\u003eContinuous Charge Current: 50A\u003cbr\u003eContinuous Discharge Current: 50A\u003cbr\u003eCell Nominal Voltage: 3.2V\u003cbr\u003eOver-Charge Protection (per cell): 3.75V (typ.)\u003cbr\u003eOver-Discharge Protection (per cell): 2.2V (typ.)\u003c\/p\u003e\n\u003cp\u003ePort Configuration:\u003cbr\u003eSame Port Design: Charge and discharge share the same negative terminal (C−)\u003cbr\u003eCell Voltage Monitoring: Individual cell sensing via balance connector\u003cbr\u003eBalancing Function: Passive balancing supported\u003cbr\u003eBalance Current: 25–45 mA\u003cbr\u003eControl Method: Hardware protection IC solution\u003c\/p\u003e\n\u003cp\u003eMechanical \u0026amp; Environmental Specifications:\u003cbr\u003ePCB Dimensions: 95 × 50 × 10 mm\u003cbr\u003eOperating Temperature: −20°C to +65°C\u003cbr\u003eStorage Temperature: −40°C to +90°C\u003cbr\u003eOperating Voltage Range: 8.8V – 15.0V\u003c\/p\u003e\n\u003cp\u003eApplication Scenarios:\u003cbr\u003e12.8V LiFePO₄ battery packs\u003cbr\u003eEnergy storage systems\u003cbr\u003eBackup power supplies\u003cbr\u003eSolar battery systems\u003cbr\u003eDIY LiFePO₄ battery projects\u003c\/p\u003e","brand":"PGYbms","offers":[{"title":"4S \/ 50A","offer_id":43086846394434,"sku":null,"price":15.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0649\/5600\/6466\/files\/01_7a211f61-1a8f-4c34-bc03-807d216ecb7b.jpg?v=1773381065","url":"https:\/\/store.pgybms.com\/products\/pgybms-hardware-protection-board-pgy091-50a-4s-lifepo4-power-management-protection-module","provider":"PGYbms","version":"1.0","type":"link"}