{"product_id":"dali-lithium-iron-phosphate-battery-protection-board-for-lifepo4-battery-pack-bms-4s-12v-with-balanced-equalization-charging-and-same-port-design-available-in-multiple-current-ratings-from-15a-to-500a-with-or-without-cooling-fan","title":"Dali lithium iron phosphate battery protection board for LiFePO4 battery pack BMS 4S 12V, with balanced equalization charging and same port design, available in multiple current ratings from 15A to 500A with or without cooling fan.","description":"\u003ch1\u003eDali 4S 12V Lithium Iron Phosphate Battery Protection Board with Balanced Charging\u003c\/h1\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Dali lithium iron phosphate 4S 12V battery protection circuit board with metal terminals\" 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 acts as an essential Battery Management System (BMS) for building or maintaining 12-volt battery packs using lithium iron phosphate (LiFePO4) cells. Its primary role is to safeguard the battery by monitoring and controlling the charge and discharge processes, preventing conditions like overcharge, over-discharge, and short circuits that can damage cells or pose safety risks. Designed specifically for a 4-series (4S) configuration, it is a key component for DIY solar power systems, electric vehicles, marine applications, and backup power solutions where reliable and safe LiFePO4 battery performance is required. The board is available in multiple models differentiated by their maximum continuous current capacity and the inclusion of active cooling.\u003c\/p\u003e\n\u003ch2\u003eFeatures and Construction\u003c\/h2\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Dali lithium iron phosphate 4S 12V battery protection circuit board with metal terminals\" 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 centres on core protection functions and flexible application matching. It provides a foundational set of BMS features tailored for the stable voltage profile of LiFePO4 chemistry.\u003c\/p\u003e\n\u003ch3\u003eMaterial and Build\u003c\/h3\u003e\n\u003cp\u003eThe protection board is built on a standard printed circuit board (PCB) populated with the necessary electronic components, such as MOSFETs for current switching, a dedicated microcontroller for logic control, and balancing resistors. Electrical connections are made via sturdy metal terminals designed to handle the specified current without excessive heating. Models rated at 80A and above incorporate an integrated cooling fan mounted to the board's housing, which actively dissipates heat generated during high-current operation, helping to maintain component reliability and prevent thermal shutdown.\u003c\/p\u003e\n\u003ch3\u003eSize and Practical Fit\u003c\/h3\u003e\n\u003cp\u003eWhile specific physical dimensions are not provided, the design is typical of PCB-based BMS units, intended to be mounted within or adjacent to the battery pack enclosure. The same-port design is a significant practical feature, using a common set of terminals for both the charger input and the load output. This simplifies wiring, reduces connection points, and minimises the risk of installation error compared to separate-port designs, making it a user-friendly choice for custom battery projects.\u003c\/p\u003e\n\u003ch2\u003eUses and Placement\u003c\/h2\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Dali lithium iron phosphate 4S 12V battery protection circuit board with metal terminals\" 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 BMS is suited for any project requiring a managed 12V LiFePO4 battery pack. Its range of current ratings dictates the scale and power demands of the suitable applications.\u003c\/p\u003e\n\u003ch3\u003eEvent or Professional Use\u003c\/h3\u003e\n\u003cp\u003eFor higher-power professional, commercial, or mobility applications, the high-current models (100A to 500A) with cooling fans are relevant. These can be used in electric golf carts, small electric vehicles, substantial off-grid solar energy storage systems, or as the power source for high-draw inverters. The active fan cooling is crucial here to sustain performance under prolonged high-load conditions, such as powering tools at a remote worksite or providing backup power for critical loads.\u003c\/p\u003e\n\u003ch3\u003eEveryday Home Use\u003c\/h3\u003e\n\u003cp\u003eLower-current models (15A to 60A) are well-matched for everyday residential and hobbyist uses. Common applications include managing the battery in a caravan or motorhome, for a trolling motor on a small boat, in a solar-powered garden lighting system, or for a custom uninterruptible power supply (UPS) for home electronics. The balanced charging function is particularly beneficial in these scenarios where the battery may experience regular charge cycles, helping to maintain capacity and longevity over time.\u003c\/p\u003e\n\u003ch2\u003eBenefits and Buying Value\u003c\/h2\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Dali lithium iron phosphate 4S 12V battery protection circuit board with metal terminals\" 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 protection board lies in its specific design for LiFePO4 batteries, its functional simplicity, and the breadth of choice it offers.\u003c\/p\u003e\n\u003ch3\u003eReuse and Low Maintenance\u003c\/h3\u003e\n\u003cp\u003eThe core benefit of integrating this BMS is the potential for long-term battery health and reduced maintenance. By preventing harmful operating conditions, it protects the investment in the LiFePO4 cells. The balancing function addresses voltage drift between cells, a common issue in series configurations that, if unchecked, reduces usable capacity and can lead to premature failure. This proactive management can significantly extend the operational lifespan of the entire battery pack.\u003c\/p\u003e\n\u003ch3\u003eWhy Choose This Product\u003c\/h3\u003e\n\u003cp\u003eWhen selecting a BMS, matching the specifications to your project is paramount. This product line offers clear differentiation through its current rating and cooling options. For a low-power application like a small solar light, a 15A or 20A model without a fan is sufficient and cost-effective. For a high-demand application like powering an electric bike or a sizable inverter, a 100A or 120A model with a fan provides necessary headroom and thermal management. The wide range allows you to choose a board that fits your power needs precisely without over-specifying, providing a direct and practical buying rationale.\u003c\/p\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"Dali lithium iron phosphate 4S 12V battery protection circuit board with metal terminals\" 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 4S 12V battery protection circuit board with metal terminals\" 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 4S 12V battery protection circuit board with metal terminals\" 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 4S 12V battery protection circuit board with metal terminals\" 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 4S 12V battery protection circuit board with metal terminals\" 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 4S 12V battery protection circuit board with metal terminals\" 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