{"product_id":"3s-4s-li-ion-bms-protection-board-40a-60a","title":"3S \/ 4S Li-ion Battery Protection Board – 40A \/ 60A BMS Options","description":"\u003cp\u003eChoose a compact battery protection board for your DIY Li-ion battery pack. Available in 3S and 4S configurations, with Balance and Enhance options.\u003c\/p\u003e\u003ch3\u003eChoose your board\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e3S 40A:\u003c\/strong\u003e Balance or Enhance version.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3S 60A:\u003c\/strong\u003e Balance or Enhance version.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4S 40A:\u003c\/strong\u003e Balance or Enhance version.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe 40A and 60A labels are supplier ratings. Suitable operating current depends on the selected board, battery cells, wiring and cooling.\u003c\/p\u003e\u003ch3\u003eCompatibility \u0026amp; contents\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFor compatible Li-ion cells rated at 3.7V nominal and 4.2V fully charged, including suitable 18650 cells.\u003c\/li\u003e\n\u003cli\u003eSelect the series count and version that match your battery-pack design.\u003c\/li\u003e\n\u003cli\u003eBattery protection board only. Battery cells and charger are not included.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e40A board dimensions\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e3S Balance:\u003c\/strong\u003e 41 × 61 × 4 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3S Enhance:\u003c\/strong\u003e 41 × 55 × 4 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4S Balance:\u003c\/strong\u003e 45 × 60 × 4 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4S Enhance:\u003c\/strong\u003e 44 × 55 × 4 mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eDimensions are supplier-specified for the 40A versions. Check the selected variant before ordering; these dimensions do not specify the 60A boards.\u003c\/p\u003e\u003ch3\u003eBefore installation\u003c\/h3\u003e\u003cp\u003eThis is a protection board, not a standalone charger. Use a charger matched to your battery chemistry and series count. Follow the wiring diagram for the exact board variant, verify polarity and connections, and avoid short circuits. Battery-pack assembly requires suitable technical knowledge.\u003c\/p\u003e","brand":"Lanotop","offers":[{"title":"3S 40A Balance","offer_id":67594677059804,"sku":"14:771#3S 40A Balance","price":29.05,"currency_code":"NZD","in_stock":true},{"title":"3S 40A Enhance","offer_id":67594677092572,"sku":"14:193#3S 40A Enhance","price":28.52,"currency_code":"NZD","in_stock":true},{"title":"3S 60A Balance","offer_id":67594677125340,"sku":"14:173#3S 60A Balance","price":29.05,"currency_code":"NZD","in_stock":true},{"title":"3S 60A Enhance","offer_id":67594677158108,"sku":"14:1254#3S 60A Enhance","price":28.84,"currency_code":"NZD","in_stock":true},{"title":"4S 40A Balance","offer_id":67594677190876,"sku":"14:365458#4S 40A Balance","price":28.84,"currency_code":"NZD","in_stock":true},{"title":"4S 40A Enhance","offer_id":67594677223644,"sku":"14:350850#4S 40A Enhance","price":29.05,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/8178\/5052\/files\/S2f7c951ff8374f1a9396f5f75c3ad201Y.webp?v=1790626761","url":"https:\/\/lanotop.co.nz\/products\/3s-4s-li-ion-bms-protection-board-40a-60a","provider":"Lanotop","version":"1.0","type":"link"}