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.
QUESTIONS & ANSWERS
Frequently Asked Questions
What battery chemistries does this BMS support?
This BMS is designed for LiFePO4 battery systems. Please check the product specifications for the supported cell configuration and voltage before purchasing.
Can I change the BMS parameters myself?
Yes. Parameters can be adjusted using the compatible software or mobile app, depending on the BMS model. We recommend changing settings only if you are familiar with battery management systems.
Does this BMS support active balancing?
If the selected model includes active balancing, it automatically balances cell voltages during operation to improve battery performance and extend service life. Please refer to the product specifications for the balancing current.
Can I monitor the battery status in real time?
Yes. The BMS provides real-time monitoring of voltage, current, temperature, SOC, cell voltage, alarms, and other battery information through the supported display, app, or PC software.
Is this BMS suitable for beginners?
Basic electrical knowledge is recommended. If you are building your first battery pack, we are happy to provide technical support before and after your purchase.
Do you provide wiring diagrams or technical support?
Yes. We provide product documentation and technical assistance to help you with installation, configuration, and troubleshooting.
What protection functions are included?
The BMS provides multiple protection features, including overcharge, over-discharge, over-current, short-circuit, over-temperature, and cell voltage protection to help ensure safe battery operation.
What should I do if the product arrives damaged or has a problem?
Please inspect the package upon delivery. If you notice any damage or experience a product issue, contact AmpBird with photos or videos as soon as possible. Our support team will help diagnose the problem and provide an appropriate solution.