{"product_id":"pd3-1-100w-bidirectional-fast-charger-power-bank-board-boost-buck-2s-3s-4s-5s-6s-battery-charging-discharging-li-ion-lifepo4-bms","title":"Bidirectional USB-C Power Bank Module for 2S–6S Battery Packs","description":"\u003cp\u003eBuild a compatible battery-powered USB project around a separate charge-and-discharge circuit rather than a finished power bank. This bidirectional buck-boost module is configurable for supported 2S–6S packs. It is for experienced electronics builders matching cell chemistry, protection, wiring and thermal design.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e✅ \u003cstrong\u003eIntegrate charging and USB output\u003c\/strong\u003e — The bidirectional circuit handles power flow in both directions through a compatible USB-C setup.\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eChoose a supported pack arrangement\u003c\/strong\u003e — Configuration pads allow the specified series count and cell chemistry to be selected.\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eUse two USB connector formats\u003c\/strong\u003e — The illustrated board provides a USB-A socket and a USB-C socket.\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eBuild around a visible board status\u003c\/strong\u003e — A small on-board display gives an indication within the finished project.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eA configurable circuit module, not a ready-to-use power bank\u003c\/h2\u003e\u003cp\u003eThe stated default is 4S Li-ion, with configuration for 2S–6S Li-ion or LiFePO4 using the designated pads. The specified cell-charge targets are 4.2 V for Li-ion and 3.65 V for LiFePO4. Confirm the board's actual configuration before connecting a pack; chemistry and series count must not be guessed.\u003c\/p\u003e\u003cp\u003eThe stated maxima depend on pack configuration: up to 30 W for 2S, 45 W for 3S and 100 W for supported 4S–6S arrangements. These are conditional module limits, not guaranteed output for every cable, device or enclosure. A suitable pack, wiring, cooling and compatible USB-PD power equipment are required.\u003c\/p\u003e\u003cp\u003eOne circuit module is supplied. Cells, pack enclosure, cables, USB supply and separate protection hardware are not confirmed as included. Do not treat the BMS wording as proof of cell balancing or a complete protected battery pack. The bench meters and batteries shown demonstrate a separate test setup and are not package contents.\u003c\/p\u003e\u003cvideo controls playsinline preload=\"metadata\" controlslist=\"nodownload noremoteplayback\" disablepictureinpicture oncontextmenu=\"return false;\" style=\"width:100%;height:auto;display:block;\"\u003e\n    \u003csource src=\"https:\/\/video.spy-shop.com\/products\/16147828605258\/1005011575069412_PD3.1-100W-Bidirectional-Fast-Charger-Power-Bank-Board-Boost-Buck-2S-3S-4S-5S-6S-Battery-Charging-Discharging-Li-Ion-Lif.mp4\" type=\"video\/mp4\"\u003e\u003c\/video\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S3c851d9000c949bfae5d01b68c738cffi.jpg\" slate-data-type=\"image\"\u003e\u003cp\u003eThe bench meter and batteries are separate test equipment, not supplied accessories.\u003c\/p\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/Sb8b332a98c9e4ae0a4724f320a950e0be.jpg\" slate-data-type=\"image\"\u003e\u003cp\u003eThe test image illustrates one operating setup rather than guaranteed performance in every build.\u003c\/p\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S19283009621f44dfbcbe84906ec85346g.jpg\" slate-data-type=\"image\"\u003e\u003cp\u003eThe board is a circuit component requiring an appropriate pack and enclosure.\u003c\/p\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S5f1f70cc970f4cad9c779838a40872a0N.jpg\" slate-data-type=\"image\"\u003e\u003cp\u003eThe small display and USB connectors are part of the illustrated module.\u003c\/p\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S4e3b74a04f414b279051f3a0001635b36.jpg\" slate-data-type=\"image\"\u003e\u003cp\u003eMatch connection polarity and configuration before connecting a battery.\u003c\/p\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/S650bf91068eb42309f53e6d166818b4bG.jpg\" slate-data-type=\"image\"\u003e\u003cp\u003eBoard mounting and ventilation must suit the finished project.\u003c\/p\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/Sfd6e55cd50864e83801d84639e9660c18.jpg\" slate-data-type=\"image\"\u003e\u003cp\u003eConfiguration pads select the supported pack arrangement; verify before applying power.\u003c\/p\u003e\u003cimg src=\"https:\/\/ae-pic-a1.aliexpress-media.com\/kf\/Secea7f9915ef4cf089d7c0a3ec5367cbV.jpg\" slate-data-type=\"image\"\u003e\u003cp\u003eOne module is supplied without the surrounding test equipment.\u003c\/p\u003e\u003ch3\u003eTechnical details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eItem: bidirectional buck-boost power-bank circuit module\u003c\/li\u003e\n\u003cli\u003eStated default: 4S Li-ion\u003c\/li\u003e\n\u003cli\u003eSupported series counts specified: 2S, 3S, 4S, 5S or 6S, correctly configured\u003c\/li\u003e\n\u003cli\u003eCell targets specified: Li-ion 4.2 V\/cell; LiFePO4 3.65 V\/cell\u003c\/li\u003e\n\u003cli\u003ePower maxima stated: 2S 30 W; 3S 45 W; supported 4S–6S up to 100 W\u003c\/li\u003e\n\u003cli\u003eVisible USB ports: 1 USB-A and 1 USB-C\u003c\/li\u003e\n\u003cli\u003eUSB-PD profiles specified: 5, 9, 12, 15 or 20 V with compatible equipment\u003c\/li\u003e\n\u003cli\u003eConfiguration: designated pads; verify delivered board instructions\u003c\/li\u003e\n\u003cli\u003eIncluded: 1 circuit module\u003c\/li\u003e\n\u003cli\u003eExcluded\/unconfirmed: cells, enclosure, cables, supply and separate protection hardware\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eMatch the battery and electrical design first, then use the module as a component in a correctly engineered USB power project.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/spy-shop.com\/collections\/power-charging\"\u003eExplore more power and charging accessories\u003c\/a\u003e\u003c\/p\u003e","brand":"Spy-shop.com","offers":[{"title":"100W MAX","offer_id":64136984920394,"sku":"1005011575069412-100W MAX","price":63.16,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0764\/5980\/2954\/files\/bidirectional-charging-board-clean-main.png?v=1793222853","url":"https:\/\/spy-shop.com\/sv\/products\/pd3-1-100w-bidirectional-fast-charger-power-bank-board-boost-buck-2s-3s-4s-5s-6s-battery-charging-discharging-li-ion-lifepo4-bms","provider":"Spy-shop.com","version":"1.0","type":"link"}