Product Details
Daly Heavy-Duty Smart BMS | 300A 400A 500A High-Current Powerhouse
Stop letting weak protection boards bottleneck your high-power electric drivetrains. The Daly Heavy-Duty Smart BMS Series (300A / 400A / 500A) is built specifically for high-torque electric propulsion, massive winches, and industrial lithium conversions. Running on a standard UART & Bluetooth setup, it bypasses complicated inverter protocols to deliver raw, continuous, and unrelenting current right when your motor demands it most.
🔥 Why Serious Builders Choose the Daly 300A-500A BMS
- Never Trips on Sudden Loads (No Interruption): Tired of cheap boards shutting down the moment you hit the gas or start the winch? Built with heavy-duty internal copper and automotive-grade chips, this beast can withstand sudden, brief power spikes up to 750A. It keeps your power flowing smoothly, even when your motor is working its hardest.
- Smart Fan Cooling (No Overheating): High current means high heat, and heat kills electronics. That’s why our 300A, 400A, and 500A models come packed inside a thick aluminum cooling shell with a built-in smart fan. The fan automatically kicks in only when things get hot, blowing away the heat to protect your expensive battery pack.
- Instant Phone Monitoring (No Guesswork): Just open the free Smart BMS App via Bluetooth on your phone. You can instantly see your battery percentage, real-time temperature, individual cell health, and how much power you are drawing.
- IP66 Waterproof Rating (100% Waterproof): Whether you are driving through deep mud on an off-road trail, working in a dusty warehouse on a forklift, or sailing out at sea, this BMS is ready. It is fully sealed with specialized thermal silicone to resist harsh vibrations, heavy dust, mud, and salty water mist.
📊Technical Specifications
| Parameter | Specification |
|---|---|
| Supported Battery Chemistry | LiFePO4 (Lithium Iron Phosphate) 3.2V Cells |
| Current Options (Continuous) | 300A / 400A / 500A Constant Discharge |
| Battery Series No. | 4S/ 8S/ 16S |
| Communication Methods | Bluetooth Module (App) + UART Port (PC) |
| Active Cooling | Integrated with FAN |
| Passive Balancing Current | 100mA |
🎯 Dominate These Heavy-Duty Applications
If your project involves raw mechanical work and zero-compromise power delivery, this is your flagship board:
- Heavy Commercial Fleet Upgrades: Drop-in lithium conversions for 48V electric forklifts, airport luggage tugs, warehouse stock pickers, and agricultural utility vehicles.
- High-Torque Off-Road Winches: Ensures continuous, uninterrupted power to heavy-duty front-bumper recovery winches when pulling trucks or overland rigs out of deep mud pits.
- High-Output Marine Propulsion: Powering heavy electric outboards, commercial fishing boat thrusters, and large off-grid house battery banks on catamarans.
Key Features
Smart protection. Universal compatibility.
Smart BMS Protection
Over-charge, over-discharge, over-current, short circuit, and temperature protection built in.
Bluetooth Monitoring
Real-time SOC, voltage, current, and temperature data via smartphone app. No LCD needed.
IP66 Water Resistant
Sealed enclosure protects against dust and water splash. Safe for marine and outdoor installations.
Pre-Programmed
Shipped with correct parameters for your cell configuration. Plug and balance -- no laptop required.
Compact Form Factor
Slim profile fits in standard battery enclosures. Clean wiring with clearly labeled terminals.
Active Balancing
Built-in passive balancing extends pack life by keeping cell voltages matched during every charge cycle.
Compatible With
Engineered to work seamlessly with your existing setup.
LiFePO4 Cells
Works with 100Ah–330Ah prismatic cells.
Solar Storage
Pairs with 12V/24V/48V solar charge controllers.
DIY Battery Packs
Drop into your own 12V/24V/48V builds.
Technical Specifications
Full specifications
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