{"product_id":"battery-protection-board-4s-20a-bms-hx-4s-a20-in-pakistan","title":"Battery Protection Board 4s 20a 14.8v Bms For 18650 Lithium Ion Cells Hx-4s-a20","description":"\u003cp\u003e\u003cspan style=\"font-size:14px\"\u003e\u003cspan style=\"color:#000000\"\u003eA battery management system \u003ca href=\"https:\/\/hallroad.org\/lithium-ion-2s-7.4v-3a-over-charge-discharge-protection-pcb-in-pakistan.html\" target=\"_blank\"\u003e(BMS)\u003c\/a\u003e is an electronic regulator that monitors and controls the charging and discharging of rechargeable \u003c\/span\u003e\u003cspan style=\"color:#000000\"\u003ebatteries\u003c\/span\u003e\u003cspan style=\"color:#000000\"\u003e. \u003ca href=\"https:\/\/hallroad.org\/3.7v-li-ion-charger-module-1a-with-battery-protection-tp4056-in-pakistan.html\" target=\"_blank\"\u003e\u003cstrong\u003eBattery BMS protection boards\u003c\/strong\u003e\u003c\/a\u003e are the brains behind battery packs. \u003cstrong\u003e20A 4S BMS\u003c\/strong\u003e manages the output, charging, and discharging and also provides critical safeguards to protect the batteries from damage. \u003cstrong\u003e18650 protection circuit Board is a \u003c\/strong\u003ehigh-accuracy voltage detection circuit. \u003cfont rwr=\"1\"\u003e\u003cfont style=\"font-family:Arial\"\u003e\u003cfont rwr=\"1\"\u003e\u003cfont style=\"font-family:Arial\"\u003eThe\u003cstrong\u003e 20A protection board\u003c\/strong\u003e can  be used for lithium-ion Phosphate batteries, Low power inverters, massager battery packs, electronics, LED light backup power supplies, solar street lights battery packs and many other products\u003c\/font\u003e\u003c\/font\u003e\u003c\/font\u003e\u003c\/font\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\r\n\u003cp\u003e\u003cimg src=\"https:\/\/digilog.pk\/cdn\/shop\/files\/Battery-Protection-Board-4S-20A-14-8V-BMS-For-18650-Lithium-Ion-Cells-HX-4S-A20-In-Lahore-Islamabad-Karachi-Faislabad.jpg\" data-original=\"https:\/\/hallroad.digilog.pk\/images\/detailed\/29\/Battery_Protection_Board_4S_20A_14.8V_BMS_For_18650_Lithium_Ion_Cells_HX-4S-A20_In_Lahore_Islamabad_Karachi_Faislabad_Multan_Peshawar_Quetta_Pakistan__2_.jpg\" alt=\"Battery Protection Board 4s 20a 14.8v Bms For 18650 Lithium\" loading=\"lazy\" data-files=\"Battery-Protection-Board-4S-20A-14-8V-BMS-For-18650-Lithium-Ion-Cells-HX-4S-A20-In-Lahore-Islamabad-Karachi-Faislabad.jpg\"\u003e\u003c\/p\u003e\r\n\r\n\u003ch2\u003e\u003cspan style=\"color:#000000;\"\u003e\u003cstrong\u003e\u003cfont rwr=\"1\"\u003e\u003cfont style=\"font-family:Arial\"\u003e\u003cfont rwr=\"1\"\u003e\u003cfont style=\"font-family:Arial\"\u003eFeatures of \u003c\/font\u003e\u003c\/font\u003e\u003c\/font\u003e\u003c\/font\u003e4S 20A BMS Protection PCB Board for 18650 Lithium Li-ion Battery Cell 14.8V:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\r\n\r\n\u003cul\u003e\r\n\t\u003cli\u003e\u003cspan style=\"color:#000000;\"\u003e\u003cspan style=\"font-size:14px;\"\u003e\u003cspan data-spm-anchor-id=\"2114.12057483.0.i4.9e6e365aMnL4Zn\"\u003eThe high-accuracy voltage detection circuit\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\t\u003cli\u003e\u003cspan style=\"color:#000000;\"\u003e\u003cspan style=\"font-size:14px;\"\u003e\u003cspan data-spm-anchor-id=\"2114.12057483.0.i6.9e6e365aMnL4Zn\"\u003eBuilt-in three-stage over-current detection circuit (over-current 1, over-current 2, or load short circuit)\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\t\u003cli\u003e\u003cspan style=\"color:#000000;\"\u003e\u003cspan style=\"font-size:14px;\"\u003eMOS transistor can control the battery charge and discharge\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\t\u003cli\u003e\u003cspan style=\"color:#000000;\"\u003e\u003cspan style=\"font-size:14px;\"\u003elow standby current consumption.\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\t\u003cli\u003e\u003cspan style=\"color:#000000;\"\u003e\u003cspan style=\"font-size:14px;\"\u003eSmall size.\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\t\u003cli\u003e\u003cspan style=\"color:#000000;\"\u003e\u003cspan style=\"font-size:14px;\"\u003eSimple wiring.\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\t\u003cli\u003e\u003cspan style=\"color:#000000;\"\u003e\u003cspan style=\"font-size:14px;\"\u003eTargeted.\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\t\u003cli\u003e\u003cspan style=\"color:#000000;\"\u003e\u003cspan style=\"font-size:14px;\"\u003e Custom installation.\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003ch2\u003e\u003cspan style=\"color:#000000;\"\u003e\u003cstrong\u003eSpecifications Of Lithium Battery Protection Board Overcharge Short Circuit Over-Discharge Current Limit Protection:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\r\n\r\n\u003col\u003e\r\n\t\u003cli\u003e\u003cspan style=\"color:#000000;\"\u003e\u003cspan style=\"font-size:14px;\"\u003e\u003cstrong\u003eOver Charge Voltage\u003c\/strong\u003e:4.25-4.35v±0.05v\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\t\u003cli\u003e\u003cspan style=\"color:#000000;\"\u003e\u003cspan style=\"font-size:14px;\"\u003e\u003cstrong\u003eOver-Discharge Voltage:\u003c\/strong\u003e 2.3-3.0v±0.05v\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\t\u003cli data-spm-anchor-id=\"2114.12057483.0.i7.9e6e365aMnL4Zn\"\u003e\u003cspan style=\"color:#000000;\"\u003e\u003cspan style=\"font-size:14px;\"\u003e\u003cstrong\u003eMax working current:\u003c\/strong\u003e10A\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\t\u003cli data-spm-anchor-id=\"2114.12057483.0.i9.9e6e365aMnL4Zn\"\u003e\u003cspan style=\"color:#000000;\"\u003e\u003cspan style=\"font-size:14px;\"\u003e\u003cstrong\u003eMax Peak Current\u003c\/strong\u003e:20A\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\t\u003cli\u003e\u003cspan style=\"color:#000000;\"\u003e\u003cspan style=\"font-size:14px;\"\u003e\u003cstrong\u003eWorking Temperature:\u003c\/strong\u003e-40---+50\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\t\u003cli\u003e\u003cspan style=\"color:#000000;\"\u003e\u003cspan style=\"font-size:14px;\"\u003e\u003cstrong\u003eStorage Temperature\u003c\/strong\u003e:-40-- +80\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\t\u003cli\u003e\u003cspan style=\"color:#000000;\"\u003e\u003cspan style=\"font-size:14px;\"\u003e\u003cstrong\u003eSmall current:\u003c\/strong\u003e6uA\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\t\u003cli\u003e\u003cspan style=\"color:#000000;\"\u003e\u003cspan style=\"font-size:14px;\"\u003e\u003cstrong\u003eLife cycle:\u003c\/strong\u003e50000hours\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\t\u003cli\u003e\u003cspan style=\"color:#000000;\"\u003e\u003cspan style=\"font-size:14px;\"\u003e\u003cstrong\u003eResistance\u003c\/strong\u003e:45mΩ\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\t\u003cli\u003e\u003cspan style=\"color:#000000;\"\u003e\u003cspan style=\"font-size:14px;\"\u003e\u003cstrong\u003eShort cut Protection\u003c\/strong\u003e: Protectable \u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\t\u003cli\u003e\u003cspan style=\"color:#000000;\"\u003e\u003cspan style=\"font-size:14px;\"\u003e\u003cstrong\u003eSize\u003c\/strong\u003e:35*35*3.0mm\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\u003c\/ol\u003e\r\n\r\n\u003ch2\u003e\n\u003cspan style=\"font-size:14px;\"\u003e\u003c\/span\u003e\u003cspan style=\"color:#000000;\"\u003e\u003cstrong\u003eUsing Attention:\u003c\/strong\u003e\u003cspan style=\"font-size:14px;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\r\n\r\n\u003ch2 style=\"text-align: center;\"\u003e \u003c\/h2\u003e\r\n\r\n\u003cul\u003e\r\n\t\u003cli\u003e\n\u003cspan style=\"font-size:14px;\"\u003e\u003cspan style=\"color:#000000;\"\u003ePlease strictly follow the wiring diagram: 0V (B-), 3.7V (B1), 7.4V (B2), 11.1V (B3), 14.8V (B+), do not intentionally short-circuit!\u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"font-size:14px;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\r\n\t\u003cli\u003e\u003cspan style=\"font-size:14px;\"\u003e\u003cspan style=\"color:#000000;\"\u003eAfter connecting the wire, it needs to be charged before it has output.\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\t\u003cli\u003e\u003cspan style=\"font-size:14px;\"\u003e\u003cspan style=\"color:#000000;\"\u003eIn series 4 batteries, please ensure that the voltage of each battery is the same. If it is different, please charge each battery separately and then use it in series. In the discharge test, the rapidly decreasing voltage battery is the poor battery.\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\t\u003cli\u003e\u003cspan style=\"font-size:14px;\"\u003e\u003cspan style=\"color:#000000;\"\u003eDon't mix good batteries with bad batteries! The more similar the battery capacity or internal resistance, the better! (The effect of 2 good batteries +2 poor batteries = The effect of 4 poor batteries).\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003cp\u003e\u003cspan style=\"color:#000000;\"\u003e\u003cspan style=\"font-size:14px;\"\u003e\u003c\/span\u003e\u003cspan style=\"font-size:16px;\"\u003e\u003cstrong\u003eCaution:\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"font-size:14px;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\r\n\u003cul\u003e\r\n\t\u003cli\u003e\u003cspan style=\"color:#000000;\"\u003eThe battery protection board cannot be used for lithium iron phosphate battery, hernia lamp, hand electric drill battery pack, electric fish electromechanical battery group, electric bicycle battery pack, children's car battery, 775(4A) above the motor, 1W fisheye LED light.\u003c\/span\u003e\u003c\/li\u003e\r\n\t\u003cli\u003e\u003cspan style=\"color:#000000;\"\u003e\u003cspan style=\"font-size:14px;\"\u003eFor the discharge products with 3A current and above, the discharge ratio of the battery should be above 3C.\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\t\u003cli\u003e\n\u003cspan style=\"color:#000000;\"\u003e\u003cspan style=\"font-size:14px;\"\u003eMultiplier calculation formula:\u003c\/span\u003e\u003c\/span\u003e\r\n\t\u003cul\u003e\r\n\t\t\u003cli\u003e\u003cspan style=\"color:#000000;\"\u003e\u003cspan style=\"font-size:14px;\"\u003e1C multiplier battery, 2000mAh capacity is equal to 2AH*1=2A upper limit working current.\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\t\t\u003cli\u003e\u003cspan style=\"color:#000000;\"\u003e\u003cspan style=\"font-size:14px;\"\u003e3C multiplier battery, 2000mAh capacity is equal to 2AH*3=6A upper limit working current.\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\t\u003c\/ul\u003e\r\n\t\u003c\/li\u003e\r\n\t\u003cli\u003e\u003cspan style=\"color:#000000;\"\u003e\u003cspan style=\"font-size:14px;\"\u003eIn use, if the battery is hot, it means that the battery multiplier is not applicable. This situation cannot be used for a long time, and the battery will be damaged quickly.\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003ch2\u003e\u003cspan style=\"color:#000000;\"\u003e\u003cstrong\u003ePackage Include:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\r\n\r\n\u003cul\u003e\r\n\t\u003cli\u003e\u003cspan style=\"color:#000000;\"\u003e\u003cspan style=\"font-size:14px;\"\u003e1x  Battery Protection Board 4S 20A BMS For 18650 Lithium-Ion Cells HX-4S-A20\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003cp\u003e\u003cspan style=\"font-size:14px;\"\u003e\u003cspan style=\"color:#000000;\"\u003eBest Online Shopping website for \u003ca href=\"https:\/\/hallroad.org\/3s-10a-12v-lithium-battery-charger-protection-board-bms-module-for-3pcs-18650-li-ion-battery-cell-charging-11.1v-12.6v-in-pakistan.html\" target=\"_blank\"\u003eBattery Protection Board\u003c\/a\u003e 4S 20A BMS For 18650 Lithium-Ion Cells HX-4S-A20  in cheap price in Karachi, Lahore, Islamabad, Rawalpindi, Sukkur, Peshawar, Multan, Quetta, Faisalabad and all over Pakistan\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\r\n\r\n\u003cp\u003e\u003cimg slate-data-type=\"image\" src=\"https:\/\/digilog.pk\/cdn\/shop\/files\/Hfecfa7f8b7624240a4f9f8bc17c2a686P.webp\" data-original=\"https:\/\/ae01.alicdn.com\/kf\/Hfecfa7f8b7624240a4f9f8bc17c2a686P.jpg\" alt=\"Battery Protection Board 4s 20a 14.8v Bms For 18650 Lithium\" loading=\"lazy\" data-files=\"Hfecfa7f8b7624240a4f9f8bc17c2a686P.webp\"\u003e\u003cimg slate-data-type=\"image\" src=\"https:\/\/digilog.pk\/cdn\/shop\/files\/H5b495c5f3e1c42269f198c452f7b7485i.webp\" data-original=\"https:\/\/ae01.alicdn.com\/kf\/H5b495c5f3e1c42269f198c452f7b7485i.jpg\" alt=\"Battery Protection Board 4s 20a 14.8v Bms For 18650 Lithium\" loading=\"lazy\" data-files=\"H5b495c5f3e1c42269f198c452f7b7485i.webp\"\u003e\u003cimg slate-data-type=\"image\" src=\"https:\/\/digilog.pk\/cdn\/shop\/files\/H0925bebeba27477ebb71dc08efc91e45A.webp\" data-original=\"https:\/\/ae01.alicdn.com\/kf\/H0925bebeba27477ebb71dc08efc91e45A.jpg\" alt=\"Battery Protection Board 4s 20a 14.8v Bms For 18650 Lithium\" loading=\"lazy\" data-files=\"H0925bebeba27477ebb71dc08efc91e45A.webp\"\u003e\u003cimg slate-data-type=\"image\" src=\"https:\/\/digilog.pk\/cdn\/shop\/files\/Hc614da19b0504c9eb291c083bde458a63.webp\" data-original=\"https:\/\/ae01.alicdn.com\/kf\/Hc614da19b0504c9eb291c083bde458a63.jpg\" alt=\"Battery Protection Board 4s 20a 14.8v Bms For 18650 Lithium\" loading=\"lazy\" data-files=\"Hc614da19b0504c9eb291c083bde458a63.webp\"\u003e\u003c\/p\u003e","brand":"China","offers":[{"title":"Default Title","offer_id":43962430160961,"sku":"b343,Krt68,IMP100,Th50,A","price":320.0,"currency_code":"PKR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0727\/2805\/1777\/files\/Battery_Protection_Board_4S_20A_14.8V_BMS_For_18650_Lithium_Ion_Cells_HX-4S-A20_In_Lahore_Islamabad_Karachi_Faislabad_Multan_Peshawar_Quetta_Pakistan__1.jpg?v=1779536899","url":"https:\/\/stem.pk\/products\/battery-protection-board-4s-20a-bms-hx-4s-a20-in-pakistan","provider":"stem.pk","version":"1.0","type":"link"}