{"product_id":"dali-12v-lithium-iron-phosphate-battery-protection-board-with-balance-function-for-4s-lifepo4-battery-packs-in-multiple-current-ratings-from-15a-to-500a-available-with-optional-cooling-fan-for-high-power-applications","title":"Dali 12V Lithium Iron Phosphate Battery Protection Board with Balance Function for 4S LiFePO4 Battery Packs in Multiple Current Ratings from 15A to 500A, Available with Optional Cooling Fan for High-Power Applications","description":"\u003ch1\u003eDali 12V Lithium Iron Phosphate Battery Protection Board for 4S Packs with Balancing Function\u003c\/h1\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Dali lithium iron phosphate battery protection board for 12V 4S systems\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US12\/504\/2025-10-02\/original-image\/2df0065b-d3c3-4e3d-adf7-3593dbae2849_trans.webp\"\u003e\u003c\/div\u003e\n\u003cp\u003eThis Dali battery protection board, commonly referred to as a Battery Management System (BMS), serves as a critical safeguard for 12V lithium iron phosphate (LiFePO4) battery packs configured with four cells in series (4S). Its primary function is to monitor and protect the battery by preventing overcharge, over-discharge, and short circuits, thereby enhancing safety and aiming to prolong the operational lifespan of the connected battery. A key integrated feature is its balancing function, which works to equalise the voltage across all four individual cells during charging. This helps to mitigate capacity loss over time caused by cell imbalance, a common issue in multi-cell battery packs. Available in an extensive selection of current ratings and with an optional cooling fan on higher-power models, it provides a configurable solution for a wide spectrum of DIY energy storage, solar power, caravan, marine, and backup power applications.\u003c\/p\u003e\n\u003ch2\u003eFeatures and Construction\u003c\/h2\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Dali lithium iron phosphate battery protection board for 12V 4S systems\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US12\/504\/2025-10-02\/original-image\/379c8e4d-d384-441d-bad4-2ce57ea42c13_trans.webp\"\u003e\u003c\/div\u003e\n\u003cp\u003eThe board's design is centred around managing and protecting 4S LiFePO4 chemistry, which is known for its thermal stability and long cycle life compared to other lithium-ion types. The construction revolves around a standard printed circuit board populated with the necessary control integrated circuits, power MOSFETs for switching the load current, and dedicated circuitry for the cell balancing function.\u003c\/p\u003e\n\u003ch3\u003eMaterial and Build\u003c\/h3\u003e\n\u003cp\u003eThe core component is a fibreglass PCB housing the electronic circuitry. High-current pathways are typically reinforced with thick copper traces or additional busbars to handle the specified amperage, ranging from 15A to 500A. Models specified as including a fan feature an integrated cooling fan assembly, often paired with an aluminium heatsink attached to the power MOSFETs. This active cooling solution is designed to dissipate heat generated during high-current operation, which is crucial for maintaining performance and reliability under sustained load in applications like high-power inverters or electric vehicle conversions.\u003c\/p\u003e\n\u003ch3\u003eSize and Practical Fit\u003c\/h3\u003e\n\u003cp\u003eThe board conforms to a standard PCB form factor common for BMS units, though exact length, width, and height dimensions are not detailed in the source material. When selecting a model, it is important to consider the physical space available in your battery enclosure or project box, noting that models with an attached cooling fan will have a larger overall footprint due to the fan assembly. The wiring terminals for the battery cells (B-, B1, B2, B3, B+) and the load output (P-, P+) are clearly marked on the board for straightforward installation.\u003c\/p\u003e\n\u003ch2\u003eUses and Placement\u003c\/h2\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Dali lithium iron phosphate battery protection board for 12V 4S systems\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US12\/504\/2025-10-02\/original-image\/5354eaa4-fada-4234-8ca9-6d0cd6ae8abf_trans.webp\"\u003e\u003c\/div\u003e\n\u003cp\u003eThis protection board is versatile, suiting any project where a reliable, protected 12V power source from a LiFePO4 battery is required. Its design makes it applicable across hobbyist, professional, and domestic settings.\u003c\/p\u003e\n\u003ch3\u003eEvent or Professional Use\u003c\/h3\u003e\n\u003cp\u003eFor professional, commercial, or critical applications such as portable power stations for event lighting and sound, telecommunications backup systems, or medical equipment power supplies, the correct specification of this BMS is vital. Choosing a model with a current rating significantly above the expected peak load (e.g., a 100A board for a 70A system) provides a safety margin. For installations expecting continuous high draw or operating in warm environments, opting for a fan-cooled version (available for 80A and higher models) is a practical consideration to ensure stable operation and component longevity.\u003c\/p\u003e\n\u003ch3\u003eEveryday Home Use\u003c\/h3\u003e\n\u003cp\u003eIn residential settings, these boards are commonly used in DIY solar battery storage systems for sheds, garages, or off-grid cabins, in caravan and motorhome leisure battery setups, and for powering custom 12V applications around the home and garden. The lower-current models (15A, 20A, 30A) are well-suited for smaller-scale projects like security system batteries, fishing kayak trolling motors, or backup lighting, where space and power demands are more modest.\u003c\/p\u003e\n\u003ch2\u003eBenefits and Buying Value\u003c\/h2\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Dali lithium iron phosphate battery protection board for 12V 4S systems\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US12\/504\/2025-10-02\/original-image\/5ad29012-0869-4486-bc69-78b31cf0e337_trans.webp\"\u003e\u003c\/div\u003e\n\u003cp\u003eThe value of this product lies in its targeted functionality, range of options, and the protective role it plays in a battery system.\u003c\/p\u003e\n\u003ch3\u003eReuse and Low Maintenance\u003c\/h3\u003e\n\u003cp\u003eBy integrating cell balancing, the board actively works to keep the individual cells within a multi-cell pack at a similar state of charge. This can help reduce the rate of capacity fade over many charge-discharge cycles, potentially extending the useful service life of the entire battery pack. The solid-state design, particularly on models without moving fan parts, requires no regular maintenance, offering a set-and-forget protection solution once correctly installed and configured.\u003c\/p\u003e\n\u003ch3\u003eWhy Choose This Product\u003c\/h3\u003e\n\u003cp\u003eThe key decision factors when selecting this Dali protection board are the required continuous discharge current of your application and the thermal management needs. The wide spectrum from 15A to 500A covers everything from small electronics to very high-power demands. The availability of fan-cooled versions for the higher amperage models addresses a common limitation of passive BMS units under heavy load, providing a directly applicable solution for users whose projects push power boundaries. The explicit support for LiFePO4 chemistry ensures compatibility and appropriate protection voltage thresholds for this specific battery type.\u003c\/p\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Dali lithium iron phosphate battery protection board for 12V 4S systems\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US12\/504\/2025-10-02\/original-image\/6ab3c859-a5d6-4f9d-a6e2-aeeabe78f840_trans.webp\"\u003e\u003c\/div\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Dali lithium iron phosphate battery protection board for 12V 4S systems\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US12\/504\/2025-10-02\/original-image\/a79bf5ab-250a-407d-97ba-8309288d5809_trans.webp\"\u003e\u003c\/div\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Dali lithium iron phosphate battery protection board for 12V 4S systems\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US12\/504\/2025-10-02\/original-image\/a92db5ab-eea7-43cf-bb7b-6bc180d062d8_trans.webp\"\u003e\u003c\/div\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Dali lithium iron phosphate battery protection board for 12V 4S systems\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US12\/504\/2025-10-02\/original-image\/d63d409c-ffa7-4dc3-9176-4481eacfdf81_trans.webp\"\u003e\u003c\/div\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Dali lithium iron phosphate battery protection board for 12V 4S systems\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US12\/504\/2025-10-02\/original-image\/d7e8e899-e335-4ade-bad0-050f7857534a_fine.webp\"\u003e\u003c\/div\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Dali lithium iron phosphate battery protection board for 12V 4S systems\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US12\/504\/2025-10-02\/original-image\/f6de4d57-fbf2-4a99-a838-d76220ce2b8d_trans.webp\"\u003e\u003c\/div\u003e","brand":"test3334tak1fxioc","offers":[{"title":"12V150A with equalization","offer_id":57745892835660,"sku":"CJYD181295711KP","price":72.0,"currency_code":"GBP","in_stock":true},{"title":"12V400A with balanced fan","offer_id":57745892868428,"sku":"CJYD181295721UF","price":246.0,"currency_code":"GBP","in_stock":true},{"title":"12V100A with equalization","offer_id":57745892901196,"sku":"CJYD181295709IR","price":43.0,"currency_code":"GBP","in_stock":true},{"title":"12V80A with balanced fan","offer_id":57745892933964,"sku":"CJYD181295714NM","price":48.0,"currency_code":"GBP","in_stock":true},{"title":"12V150A with balanced fan","offer_id":57745892966732,"sku":"CJYD181295717QJ","price":84.0,"currency_code":"GBP","in_stock":true},{"title":"12V80A with equalization","offer_id":57745892999500,"sku":"CJYD181295708HS","price":38.0,"currency_code":"GBP","in_stock":true},{"title":"12V60A with equalization","offer_id":57745893032268,"sku":"CJYD181295707GT","price":27.0,"currency_code":"GBP","in_stock":true},{"title":"12V500A with balanced fan","offer_id":57745893065036,"sku":"CJYD181295722VE","price":276.0,"currency_code":"GBP","in_stock":true},{"title":"12V120A with balanced fan","offer_id":57745893097804,"sku":"CJYD181295716PK","price":81.0,"currency_code":"GBP","in_stock":true},{"title":"12V50A with equalization","offer_id":57745893130572,"sku":"CJYD181295706FU","price":25.0,"currency_code":"GBP","in_stock":true},{"title":"12V250A with balanced fan","offer_id":57745893163340,"sku":"CJYD181295719SH","price":139.0,"currency_code":"GBP","in_stock":true},{"title":"12V120A with equalization","offer_id":57745893196108,"sku":"CJYD181295710JQ","price":69.0,"currency_code":"GBP","in_stock":true},{"title":"12V30A with equalization","offer_id":57745893228876,"sku":"CJYD181295704DW","price":21.0,"currency_code":"GBP","in_stock":true},{"title":"12V100A with balanced fan","offer_id":57745893261644,"sku":"CJYD181295715OL","price":52.0,"currency_code":"GBP","in_stock":true},{"title":"12V200A with equalization","offer_id":57745893294412,"sku":"CJYD181295712LO","price":106.0,"currency_code":"GBP","in_stock":true},{"title":"12V300A with balanced fan","offer_id":57745893327180,"sku":"CJYD181295720TG","price":204.0,"currency_code":"GBP","in_stock":true},{"title":"12V250A with equalization","offer_id":57745893359948,"sku":"CJYD181295713MN","price":113.0,"currency_code":"GBP","in_stock":true},{"title":"12V40A with equalization","offer_id":57745893392716,"sku":"CJYD181295705EV","price":22.0,"currency_code":"GBP","in_stock":true},{"title":"12V200A with balanced fan","offer_id":57745893425484,"sku":"CJYD181295718RI","price":117.0,"currency_code":"GBP","in_stock":true},{"title":"12V15A with equalization","offer_id":57745893458252,"sku":"CJYD181295702BY","price":16.0,"currency_code":"GBP","in_stock":true},{"title":"12V20A with equalization","offer_id":57745893491020,"sku":"CJYD181295703CX","price":17.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/0000\/6988\/files\/d63d409c-ffa7-4dc3-9176-4481eacfdf81_trans.webp?v=1780946010","url":"https:\/\/r0ugqn-kg.myshopify.com\/products\/dali-12v-lithium-iron-phosphate-battery-protection-board-with-balance-function-for-4s-lifepo4-battery-packs-in-multiple-current-ratings-from-15a-to-500a-available-with-optional-cooling-fan-for-high-power-applications","provider":"NoriSelect.uk","version":"1.0","type":"link"}