{"id":8115615924404,"title":"5pcs 2S 20A 7.4V 8.4V 18650 Lithium Battery Protection Board Balanced Version BMS","handle":"5pcs-2s-20a-7-4v-8-4v-18650-lithium-battery-protection-board-balanced-version-bms","description":"\u003ch3\u003e5pcs 2S 20A 7.4V 8.4V 18650 Lithium Battery Protection Board Balanced Version BMS\u003c\/h3\u003e\n\u003cp id=\"b\"\u003ex5pcs 2S 20A 7.4V 8.4V 18650 Lithium Battery Protection Board BMS Balance\nVersionSpecifications:Applicable scope: Suitable for lithium batteries with\nnominal voltage of 3.7V and full voltage of 4.2V (including 18650, 26650,\npolymer lithium batteries, without limitation on the dimensions). Product\nSize: 45153.4mm (Standard), 48203.4mm (Balancing) Charging voltage: 8.4V -\n9.0V Continuous discharge current (upper limit): 20A (If the cooling\nenvironment is not good, reduce the load current use) Continuous charge\ncurrent (upper limit): 10A Balanced version: Suitable for starting currents\nbelow 25A and below 50W power drills, or resistive loads below 168W, with\nbalanced charging function.Notes:Note 1: The successful start of power drill\nrequires two 10C-20C power batteries, or four 5C-10C power batteries (ordinary\n18650 can not start drill! ! !); 0V and 8.4V cable, use 2 square mm Above\ncopper wire (cannot use nickel plate!!!) Note 2: Connect 0V, 4.2V, 8.4V\naccording to the diagram strictly. When connecting the battery for the first\ntime, it needs to be charged before output. Note 3: When the battery is\ncharged, \"430\" resistance heating is a normal phenomenon, indicating that the\nequalizing circuit is working; if the \"430\" resistance is also heating in the\nstate of not charging, please check whether the wrong line is connected. For\nsome customers with poor electronic foundation, please explain: Do not mix\ngood batteries and bad batteries together! The capacity\/internal resistance of\n2 batteries should be as close as possible! (1 good battery + 1 bad battery =\n2 battery use effect).Packet Contains: 5pcs x 2S 20A 7.4V 8.4V 18650 Lithium\nBattery Protection Board BMS Balance Version\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n \u003cul class=\"a\"\u003e\n \u003cli\u003e2S20A2S 20A 7.4V 8.4V 18650 Lithium Battery Protection Board BMS Balance Version. Product size: 45*15*3.4mm (standard), 48*20*3.4mm (balance). Charging voltage: 8.4V - 9.0V\u003c\/li\u003e\n \u003cli\u003eCompact DesignApplicable scope: Suitable for lithium batteries with nominal voltage of 3.7V and full voltage of 4.2V (including 18650, 26650 lithium polymer batteries, no size limitation).\u003c\/li\u003e\n \u003cli\u003eDescriptionCurrent Continuous discharge current (upper limit): 20A (If the cooling environment is not good, please reduce the use of charging current); Continuous charging current (upper limit): 10A; Balanced version: Suitable for starting currents less than 25A and less than 50W for electric drills or resistive loads less than 168W, with balanced load function.\u003c\/li\u003e\n \u003cli\u003eNoteNote 1: Successfully starting an electric drill requires two 10C-20C electric batteries or four 5C-10C electric batteries (normal 18650s can't start drilling!!!); 0V and 8.4V wire, use 2mm copper square wire (can't use nickel plate!!!); Note 2: Connect 0V, 4.2V, 8.4V strictly following the diagram. When you connect the battery for the first time, you need to charge it before leaving.\u003c\/li\u003e\n \u003cli\u003eNoteNote 3: When the battery is charged, the heating of the \"430\" resistor is a normal phenomenon, which indicates that the equalization circuit is working; If the resistor \"430\" heats up even in the no-load state, check whether the wrong line is connected. The internal capacity\/resistance of 2 batteries should be as similar as possible! (1 good battery + 1 bad battery = 2 battery usage effects).\u003c\/li\u003e\n \u003c\/ul\u003e","published_at":"2026-09-03T00:32:41+10:00","created_at":"2026-09-02T20:23:37+10:00","vendor":"TECNOULAB","type":"3D Printer Interface \u0026 Driver Modules","tags":["industrial_UK_Aug2026"],"price":17200,"price_min":17200,"price_max":17200,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":44375706927284,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"uk-B0CHRJ9DW4","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"5pcs 2S 20A 7.4V 8.4V 18650 Lithium Battery Protection Board Balanced Version BMS","public_title":null,"options":["Default Title"],"price":17200,"weight":20,"compare_at_price":null,"inventory_management":"shopify","barcode":"B277-2S20A-313-5PCS","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/auspowers.com\/cdn\/shop\/files\/uk-B0CHRJ9DW4.jpg?v=1788344619","\/\/auspowers.com\/cdn\/shop\/files\/51DLCvH2o4L.jpg?v=1788344619","\/\/auspowers.com\/cdn\/shop\/files\/41_RYhgJJfL.jpg?v=1788344619","\/\/auspowers.com\/cdn\/shop\/files\/51oTMACAyAL.jpg?v=1788344619","\/\/auspowers.com\/cdn\/shop\/files\/51n-cgryiqL.jpg?v=1788344619","\/\/auspowers.com\/cdn\/shop\/files\/41JD23crDSL.jpg?v=1788344619","\/\/auspowers.com\/cdn\/shop\/files\/41HictpjCcL.jpg?v=1788344619"],"featured_image":"\/\/auspowers.com\/cdn\/shop\/files\/uk-B0CHRJ9DW4.jpg?v=1788344619","options":["Title"],"media":[{"alt":null,"id":33276666937524,"position":1,"preview_image":{"aspect_ratio":1.378,"height":712,"width":981,"src":"\/\/auspowers.com\/cdn\/shop\/files\/uk-B0CHRJ9DW4.jpg?v=1788344619"},"aspect_ratio":1.378,"height":712,"media_type":"image","src":"\/\/auspowers.com\/cdn\/shop\/files\/uk-B0CHRJ9DW4.jpg?v=1788344619","width":981},{"alt":null,"id":33276666970292,"position":2,"preview_image":{"aspect_ratio":1.0,"height":500,"width":500,"src":"\/\/auspowers.com\/cdn\/shop\/files\/51DLCvH2o4L.jpg?v=1788344619"},"aspect_ratio":1.0,"height":500,"media_type":"image","src":"\/\/auspowers.com\/cdn\/shop\/files\/51DLCvH2o4L.jpg?v=1788344619","width":500},{"alt":null,"id":33276667003060,"position":3,"preview_image":{"aspect_ratio":1.0,"height":500,"width":500,"src":"\/\/auspowers.com\/cdn\/shop\/files\/41_RYhgJJfL.jpg?v=1788344619"},"aspect_ratio":1.0,"height":500,"media_type":"image","src":"\/\/auspowers.com\/cdn\/shop\/files\/41_RYhgJJfL.jpg?v=1788344619","width":500},{"alt":null,"id":33276667035828,"position":4,"preview_image":{"aspect_ratio":1.0,"height":500,"width":500,"src":"\/\/auspowers.com\/cdn\/shop\/files\/51oTMACAyAL.jpg?v=1788344619"},"aspect_ratio":1.0,"height":500,"media_type":"image","src":"\/\/auspowers.com\/cdn\/shop\/files\/51oTMACAyAL.jpg?v=1788344619","width":500},{"alt":null,"id":33276667068596,"position":5,"preview_image":{"aspect_ratio":1.0,"height":500,"width":500,"src":"\/\/auspowers.com\/cdn\/shop\/files\/51n-cgryiqL.jpg?v=1788344619"},"aspect_ratio":1.0,"height":500,"media_type":"image","src":"\/\/auspowers.com\/cdn\/shop\/files\/51n-cgryiqL.jpg?v=1788344619","width":500},{"alt":null,"id":33276667101364,"position":6,"preview_image":{"aspect_ratio":1.269,"height":394,"width":500,"src":"\/\/auspowers.com\/cdn\/shop\/files\/41JD23crDSL.jpg?v=1788344619"},"aspect_ratio":1.269,"height":394,"media_type":"image","src":"\/\/auspowers.com\/cdn\/shop\/files\/41JD23crDSL.jpg?v=1788344619","width":500},{"alt":null,"id":33276667134132,"position":7,"preview_image":{"aspect_ratio":1.0,"height":500,"width":500,"src":"\/\/auspowers.com\/cdn\/shop\/files\/41HictpjCcL.jpg?v=1788344619"},"aspect_ratio":1.0,"height":500,"media_type":"image","src":"\/\/auspowers.com\/cdn\/shop\/files\/41HictpjCcL.jpg?v=1788344619","width":500}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003e5pcs 2S 20A 7.4V 8.4V 18650 Lithium Battery Protection Board Balanced Version BMS\u003c\/h3\u003e\n\u003cp id=\"b\"\u003ex5pcs 2S 20A 7.4V 8.4V 18650 Lithium Battery Protection Board BMS Balance\nVersionSpecifications:Applicable scope: Suitable for lithium batteries with\nnominal voltage of 3.7V and full voltage of 4.2V (including 18650, 26650,\npolymer lithium batteries, without limitation on the dimensions). Product\nSize: 45153.4mm (Standard), 48203.4mm (Balancing) Charging voltage: 8.4V -\n9.0V Continuous discharge current (upper limit): 20A (If the cooling\nenvironment is not good, reduce the load current use) Continuous charge\ncurrent (upper limit): 10A Balanced version: Suitable for starting currents\nbelow 25A and below 50W power drills, or resistive loads below 168W, with\nbalanced charging function.Notes:Note 1: The successful start of power drill\nrequires two 10C-20C power batteries, or four 5C-10C power batteries (ordinary\n18650 can not start drill! ! !); 0V and 8.4V cable, use 2 square mm Above\ncopper wire (cannot use nickel plate!!!) Note 2: Connect 0V, 4.2V, 8.4V\naccording to the diagram strictly. When connecting the battery for the first\ntime, it needs to be charged before output. Note 3: When the battery is\ncharged, \"430\" resistance heating is a normal phenomenon, indicating that the\nequalizing circuit is working; if the \"430\" resistance is also heating in the\nstate of not charging, please check whether the wrong line is connected. For\nsome customers with poor electronic foundation, please explain: Do not mix\ngood batteries and bad batteries together! The capacity\/internal resistance of\n2 batteries should be as close as possible! (1 good battery + 1 bad battery =\n2 battery use effect).Packet Contains: 5pcs x 2S 20A 7.4V 8.4V 18650 Lithium\nBattery Protection Board BMS Balance Version\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n \u003cul class=\"a\"\u003e\n \u003cli\u003e2S20A2S 20A 7.4V 8.4V 18650 Lithium Battery Protection Board BMS Balance Version. Product size: 45*15*3.4mm (standard), 48*20*3.4mm (balance). Charging voltage: 8.4V - 9.0V\u003c\/li\u003e\n \u003cli\u003eCompact DesignApplicable scope: Suitable for lithium batteries with nominal voltage of 3.7V and full voltage of 4.2V (including 18650, 26650 lithium polymer batteries, no size limitation).\u003c\/li\u003e\n \u003cli\u003eDescriptionCurrent Continuous discharge current (upper limit): 20A (If the cooling environment is not good, please reduce the use of charging current); Continuous charging current (upper limit): 10A; Balanced version: Suitable for starting currents less than 25A and less than 50W for electric drills or resistive loads less than 168W, with balanced load function.\u003c\/li\u003e\n \u003cli\u003eNoteNote 1: Successfully starting an electric drill requires two 10C-20C electric batteries or four 5C-10C electric batteries (normal 18650s can't start drilling!!!); 0V and 8.4V wire, use 2mm copper square wire (can't use nickel plate!!!); Note 2: Connect 0V, 4.2V, 8.4V strictly following the diagram. When you connect the battery for the first time, you need to charge it before leaving.\u003c\/li\u003e\n \u003cli\u003eNoteNote 3: When the battery is charged, the heating of the \"430\" resistor is a normal phenomenon, which indicates that the equalization circuit is working; If the resistor \"430\" heats up even in the no-load state, check whether the wrong line is connected. The internal capacity\/resistance of 2 batteries should be as similar as possible! (1 good battery + 1 bad battery = 2 battery usage effects).\u003c\/li\u003e\n \u003c\/ul\u003e"}