{"product_id":"hx-4s-a20-4s-20a-bms-protection-board-for-14-8v-18650-li-ion-battery-pack","title":"HX-4S-A20 4S 20A BMS Protection Board for 14.8V 18650 Li-ion Battery Pack","description":"\u003ch2\u003e\u003cspan\u003eHX-4S-A20 4S 20A BMS Protection Board for 14.8V 18650 Li-ion Battery Packs\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eHX-4S-A20 4S BMS Protection Board\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is designed for compatible four-series lithium-ion battery packs, including suitable 18650 cell configurations. It provides battery-pack protection functions intended to help reduce the risk of overcharging, excessive discharge, overcurrent, and short-circuit conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWith a nominal pack voltage of 14.8V and a standard full-charge voltage of 16.8V, this board is intended for compatible 4S lithium-ion battery projects where suitable battery protection circuitry is required.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e4S battery configuration:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e For compatible four-series lithium-ion battery packs.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e14.8V nominal pack voltage:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Based on four series-connected 3.7V nominal Li-ion cells.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eProtection functions:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Seller listings specify overcharge, over-discharge, overcurrent, and short-circuit protection.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCompact PCB format:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Commonly listed at approximately 35 × 35mm; confirm the dimensions of the supplied revision.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eDesigned for battery-pack integration:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Suitable for compatible DIY battery assemblies and electronics projects when the current and electrical requirements match the board.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eModel:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e HX-4S-A20\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBattery configuration:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 4S (four cells\/groups in series)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBattery chemistry:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Compatible lithium-ion cells\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eNominal battery-pack voltage:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 14.8V\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eStandard full-charge voltage:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 16.8V for a conventional 4S Li-ion pack\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAdvertised model rating:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 20A\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eReported maximum working current:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 10A in multiple seller listings\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eReported peak current:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 20A\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eProtection features:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Overcharge, over-discharge, overcurrent and short-circuit protection, as listed by suppliers\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eReported board dimensions:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Approximately 35 × 35 × 3mm; confirm against actual stock\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCurrent-rating note:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The 20A figure should not be assumed to be the continuous operating current. Multiple supplier listings describe 10A as the maximum working current and 20A as the peak current. Confirm the exact board revision, current limits, and operating conditions before designing a battery pack.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eInstallation and Compatibility\u003c\/span\u003e\u003c\/h3\u003e\n\u003col start=\"1\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eUse only compatible lithium-ion cells arranged in a four-series configuration.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCheck that the cells are in suitable condition and have compatible voltage, capacity, and internal resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eFollow the connection labels and wiring diagram for the exact board supplied. Do not rely on an unverified generic wiring diagram.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eUse a charger specifically suitable for a 4S lithium-ion pack with a 16.8V charging limit.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eConfirm the board's continuous current rating, protection thresholds, and thermal requirements before connecting a load.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003e\u003cspan\u003eImportant Safety Information\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eA BMS protection board is not a substitute for correct cell selection, appropriate charging, suitable wiring, insulation, and safe battery-pack construction. Do not assume that this board supports LiFePO₄ batteries, active cell balancing, or a continuous 20A load unless those features are confirmed for the exact model supplied.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePackage contents:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 1 × HX-4S-A20 BMS protection board, unless your supplier's package specification states otherwise.\u003c\/span\u003e\u003c\/p\u003e","brand":"Electronics Hub","offers":[{"title":"Default Title","offer_id":67844798841145,"sku":null,"price":325.0,"currency_code":"PKR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/3623\/2249\/files\/01_Main_Product_Image_9ac20d26-55b4-4ce0-8a69-5a688938c48a.png?v=1793036953","url":"https:\/\/electronicshub.pk\/products\/hx-4s-a20-4s-20a-bms-protection-board-for-14-8v-18650-li-ion-battery-pack","provider":"Electronics Hub","version":"1.0","type":"link"}