{"product_id":"hxyp-4s-3828-4s-8a-bms-lithium-battery-protection-board-14-8v-16-8v","title":"HXYP-4S-3828 4S 8A BMS Lithium Battery Protection Board (14.8V \/ 16.8V)","description":"\u003cp data-path-to-node=\"5\"\u003eWhen building custom 4-cell series (4S) lithium-ion packs, space is often at a premium, but safety cannot be compromised. The \u003cb data-path-to-node=\"5\" data-index-in-node=\"126\"\u003eHXYP-4S-3828 BMS Protection Board\u003c\/b\u003e is specifically engineered to provide comprehensive protection for 14.8V battery configurations without the bulk of heavy industrial modules. Designed to sustain a reliable 8 Amps of continuous discharge, it is the perfect middle-ground module for powering moderate loads like custom LED arrays, small robotics, and portable audio setups.\u003c\/p\u003e\n\u003cp data-path-to-node=\"6\"\u003eThis board acts as a diligent gatekeeper for your power supply. While it hums along smoothly at 8A continuous, its standout feature is the hard \u003cb data-path-to-node=\"6\" data-index-in-node=\"144\"\u003e20A instantaneous current limit\u003c\/b\u003e. If a motor stalls or a short-circuit occurs causing a massive spike in current draw, the board instantly trips to sever the connection, preventing melted wires, thermal runaway, and catastrophic cell damage. Once the fault is cleared, the board resets, keeping your equipment safe and operational.\u003c\/p\u003e\n\u003cp data-path-to-node=\"7\"\u003e\u003cb data-path-to-node=\"7\" data-index-in-node=\"0\"\u003eKey Features \u0026amp; Functional Advantages:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"8\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,0,0\"\u003e\u003cb data-path-to-node=\"8,0,0\" data-index-in-node=\"0\"\u003e8A Continuous \/ 20A Limit:\u003c\/b\u003e Perfectly calibrated to handle steady 8-Amp loads, with a strict 20A over-current cut-off threshold to safeguard against sudden electrical faults.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,1,0\"\u003e\u003cb data-path-to-node=\"8,1,0\" data-index-in-node=\"0\"\u003eCompact Integration:\u003c\/b\u003e Measuring just 38mm by 28mm, its low-profile PCB design allows it to be easily shrink-wrapped directly alongside an 18650 square-pack or flat-pack.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,2,0\"\u003e\u003cb data-path-to-node=\"8,2,0\" data-index-in-node=\"0\"\u003eComprehensive 4-Tier Protection:\u003c\/b\u003e Actively monitors the cells to prevent over-charging, deep over-discharging (below 2.5V), over-current events, and hard short-circuits.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,3,0\"\u003e\u003cb data-path-to-node=\"8,3,0\" data-index-in-node=\"0\"\u003eLow Internal Resistance:\u003c\/b\u003e Utilizes high-quality MOSFETs to ensure minimal power loss and reduced heat generation during normal operation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,4,0\"\u003e\u003cb data-path-to-node=\"8,4,0\" data-index-in-node=\"0\"\u003eAutomatic Fault Recovery:\u003c\/b\u003e If the protection circuit is triggered by an anomaly (like a momentary short), the system restores output once the load is disconnected and normal charging voltage is applied.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"9\"\u003e\u003cb data-path-to-node=\"9\" data-index-in-node=\"0\"\u003ePerfect For:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"10\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,0,0\"\u003e\u003cb data-path-to-node=\"10,0,0\" data-index-in-node=\"0\"\u003ePortable LED Lighting:\u003c\/b\u003e Safely regulates custom 14.8V power banks built specifically to drive high-wattage field lighting and camera floodlights.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,1,0\"\u003e\u003cb data-path-to-node=\"10,1,0\" data-index-in-node=\"0\"\u003eSmall-to-Medium Robotics:\u003c\/b\u003e An excellent power management brain for 12V-14V tabletop rovers, motorized sliders, and micro-actuators that don't require heavy-duty 40A boards.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,2,0\"\u003e\u003cb data-path-to-node=\"10,2,0\" data-index-in-node=\"0\"\u003eCustom Audio Enclosures:\u003c\/b\u003e Protects the internal lithium power supplies of DIY Bluetooth speakers and portable desktop amplifiers.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,3,0\"\u003e\u003cb data-path-to-node=\"10,3,0\" data-index-in-node=\"0\"\u003eSensor \u0026amp; IoT Networks:\u003c\/b\u003e Provides steady, protected power from 4S packs used as off-grid power reserves for remote environmental telemetry nodes.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"11\"\u003e\u003cb data-path-to-node=\"11\" data-index-in-node=\"0\"\u003eTechnical Specifications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"12\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,0,0\"\u003e\u003cb data-path-to-node=\"12,0,0\" data-index-in-node=\"0\"\u003eModel:\u003c\/b\u003e HXYP-4S-3828\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,1,0\"\u003e\u003cb data-path-to-node=\"12,1,0\" data-index-in-node=\"0\"\u003eConfiguration:\u003c\/b\u003e 4S (4 Cells in Series)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,2,0\"\u003e\u003cb data-path-to-node=\"12,2,0\" data-index-in-node=\"0\"\u003eSupported Chemistry:\u003c\/b\u003e Lithium-Ion (18650, 21700) or Lithium Polymer (LiPo)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,3,0\"\u003e\u003cb data-path-to-node=\"12,3,0\" data-index-in-node=\"0\"\u003eNominal Voltage:\u003c\/b\u003e 14.8V\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,4,0\"\u003e\u003cb data-path-to-node=\"12,4,0\" data-index-in-node=\"0\"\u003eFull Charge Voltage:\u003c\/b\u003e 16.8V (Requires a dedicated 16.8V CC\/CV lithium charger)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,5,0\"\u003e\u003cb data-path-to-node=\"12,5,0\" data-index-in-node=\"0\"\u003eMaximum Continuous Discharge Current:\u003c\/b\u003e 8A\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,6,0\"\u003e\u003cb data-path-to-node=\"12,6,0\" data-index-in-node=\"0\"\u003eOver-Current Protection Threshold (Limit):\u003c\/b\u003e 20A (± 2A)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,7,0\"\u003e\u003cb data-path-to-node=\"12,7,0\" data-index-in-node=\"0\"\u003eOvercharge Protection Threshold:\u003c\/b\u003e ~4.25V ±0.05V per cell\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,8,0\"\u003e\u003cb data-path-to-node=\"12,8,0\" data-index-in-node=\"0\"\u003eOver-Discharge Cut-off Threshold:\u003c\/b\u003e ~2.50V ±0.08V per cell\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,9,0\"\u003e\u003cb data-path-to-node=\"12,9,0\" data-index-in-node=\"0\"\u003eApproximate Dimensions:\u003c\/b\u003e 38 mm x 28 mm x 3 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,10,0\"\u003e\u003cb data-path-to-node=\"12,10,0\" data-index-in-node=\"0\"\u003eConnection Pads:\u003c\/b\u003e B- (Battery Negative), B1, B2, B3, B+ (Battery Positive) \/ P- (Load Negative), P+ (Load Positive)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"K-TECHNICS","offers":[{"title":"Default Title","offer_id":42858687561799,"sku":null,"price":0.0,"currency_code":"KES","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0680\/7637\/2039\/files\/4S-8A-3.2V-BMS.webp?v=1780937146","url":"https:\/\/www.ktechnics.com\/products\/hxyp-4s-3828-4s-8a-bms-lithium-battery-protection-board-14-8v-16-8v","provider":"K-TECHNICS","version":"1.0","type":"link"}