{"product_id":"4s-16v-12a-li-ion-lipo-bms-protection-board-18650-pcm","title":"4S 16V 12A Li-ion \/ LiPo BMS Protection Board — 18650 Cell Pack, PCM","description":"\u003ch2\u003e4S 16V 12A Li-ion \/ LiPo BMS Protection Board — 18650 Cell Pack (PCM)\u003c\/h2\u003e\u003cp\u003eThis \u003cstrong\u003e4S 12A BMS protection board (PCM)\u003c\/strong\u003e provides essential protection for 4-cell series Li-ion or LiPo battery packs at 16V nominal (16.8V fully charged). With overcharge, overdischarge, overcurrent, and short-circuit protection, it is designed for DIY 4S 18650 battery packs used in portable electronics, power tools, and RC applications where a moderate 12A continuous discharge rating is sufficient.\u003c\/p\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eConfiguration\u003c\/td\u003e\n\u003ctd\u003e4S (4 cells in series)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Voltage\u003c\/td\u003e\n\u003ctd\u003e16V (14.8V – 16.8V range)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFull Charge Voltage\u003c\/td\u003e\n\u003ctd\u003e16.8V (4.2V per cell)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContinuous Discharge Current\u003c\/td\u003e\n\u003ctd\u003e12A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOvercharge Protection\u003c\/td\u003e\n\u003ctd\u003e4.25V ±0.05V per cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOver-Discharge Protection\u003c\/td\u003e\n\u003ctd\u003e2.5V ±0.1V per cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShort-Circuit Protection\u003c\/td\u003e\n\u003ctd\u003eYes (auto-recovery)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Cells\u003c\/td\u003e\n\u003ctd\u003eLi-ion \/ LiPo 18650, pouch cells\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003e4S 12A vs 4S 30A BMS — Which to Choose?\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003e4S 12A (This Product)\u003c\/th\u003e\n\u003cth\u003e4S 30A\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eContinuous Current\u003c\/td\u003e\n\u003ctd\u003e12A\u003c\/td\u003e\n\u003ctd\u003e30A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest For\u003c\/td\u003e\n\u003ctd\u003ePortable electronics, moderate loads\u003c\/td\u003e\n\u003ctd\u003ePower tools, heavy motors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePCB Size\u003c\/td\u003e\n\u003ctd\u003eCompact\u003c\/td\u003e\n\u003ctd\u003eLarger\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eWhy Choose This BMS?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e✅ \u003cstrong\u003eFull protection suite\u003c\/strong\u003e — overcharge, overdischarge, overcurrent, short circuit\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003e4S Li-ion \/ LiPo compatible\u003c\/strong\u003e — works with 18650 and pouch cells\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eCompact PCB\u003c\/strong\u003e — fits inside small battery enclosures\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eAuto-recovery short circuit\u003c\/strong\u003e — resets automatically after fault clearance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDIY 4S 18650 battery pack for portable electronics\u003c\/li\u003e\n\u003cli\u003eRC vehicle Li-ion battery protection\u003c\/li\u003e\n\u003cli\u003ePortable power station 16V module\u003c\/li\u003e\n\u003cli\u003eLaptop battery replacement pack\u003c\/li\u003e\n\u003cli\u003eDIY power bank high-voltage module\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1 × 4S 16V 12A Li-ion \/ LiPo BMS Protection Board (PCM)\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":46991441264875,"sku":"\u003cnone\u003e","price":6.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/4s-16v-li-ion-lipo-bms-pcm-protection-board-12a.webp?v=1761807666","url":"https:\/\/keszoox.com\/products\/4s-16v-12a-li-ion-lipo-bms-protection-board-18650-pcm","provider":"Keszoox","version":"1.0","type":"link"}