For battery cells, review the product description for real-world current recommendations, testing notes, and application guidance. Manufacturer maximum ratings should be treated as limits, not the best target for long-term pack health.
Description
Daly Smart Active Balance BMS with Bluetooth (4S-24S) | UART / CAN | 60A-200A
Reliable smart BMS designed for DIY lithium battery packs, solar storage systems, electric vehicles, robotics, and other custom battery applications. This series combines Bluetooth monitoring, 1A active balancing, and full battery protection in one compact solution.
Product Overview
The Daly Smart BMS is a practical option for builders looking for battery protection, live monitoring, and active balancing in one system. Using the Daly mobile app, you can monitor pack voltage, cell voltage, current, temperature, balancing activity, and protection status in real time.
Unlike basic BMS units that use passive balancing resistors, this version includes 1A active balancing, which transfers energy between cells to help keep the pack balanced more efficiently and with less heat.
Key Features
- Built-in Bluetooth monitoring
- 1A active balancing system
- Supports battery packs from 4S up to 24S
- Available with UART or CAN communication depending on model
- Compatible with Li-ion, LiFePO4, and LTO battery systems
- Real-time battery data through mobile app
- Full protection against common battery faults
Smart Monitoring
Using the Daly app, users can monitor:
- Individual cell voltages
- Total pack voltage
- Charge and discharge current
- Battery temperature
- State of charge
- Balancing activity
- Protection alarms and system status
Protection Functions
Active Balancing Advantage
This BMS features 1A active balancing, which moves energy from higher-voltage cells to lower-voltage cells instead of wasting that energy as heat.
- Faster balancing performance
- Lower heat generation
- Improved pack efficiency
- Helps maintain better long-term pack health
Available Variants
| Model | Cell Range | Current Rating | Communication |
|---|---|---|---|
| 4S-8S 100A UART | 4S to 8S | 100A | UART |
| 8S-17S 100A UART | 8S to 17S | 100A | UART |
| 8S-17S 200A CAN | 8S to 17S | 200A | CAN |
| 8S-24S 60A UART | 8S to 24S | 60A | UART |
Applications
- DIY lithium battery packs
- Solar energy storage systems
- Electric bikes and scooters
- Electric vehicles
- Robotics and industrial battery systems
- Backup power systems
Package Includes
- Daly Smart BMS
- Balance wire harness
- Temperature sensor
- Communication cable
- User manual
Important Notes
- Always verify your battery cell count, chemistry, and current requirements before purchasing.
- Select the correct model based on your pack configuration and communication needs.
- Installation should be performed by users familiar with lithium battery systems.
- Improper wiring or incorrect setup can damage the BMS and battery pack.
Safety Warning for Lithium-Ion Battery Usage
Customers should have a clear understanding of lithium-ion battery handling and safety before making a purchase. Lithium-ion batteries are highly sensitive and may pose fire, burn, or explosion risks if improperly handled. Always charge batteries on fire-resistant surfaces, and never leave them charging unattended.
By purchasing, you assume full responsibility for any injury, damage, or loss arising from the incorrect use or handling of lithium-ion batteries or chargers. Compatibility with specific devices is not guaranteed. Only charge using a smart charger designed specifically for this battery type, and do not mix old or used batteries with new ones.
Important Usage Guidelines:
- Not for use in e-cigarettes or similar devices
- Risk of fire and explosion if misused
- Always use in a properly protected battery pack
- Store batteries in protective cases away from metal objects
- Do not use batteries with damaged wrappers or visible damage
- Follow manufacturer charging specifications
- Do not alter, dismantle, puncture, crush, or burn
- Keep away from heat and water
- Batteries should only be spot welded, never soldered directly to the terminals
Users are expected to have battery-handling knowledge before purchasing. By using these batteries, you acknowledge that usage is solely at your own risk, and you take full responsibility for any resulting consequences.
For Resellers: Please ensure all safety information is passed along to end users to promote safe handling and proper use.
Orders ship from Florida when inventory is available. Lithium-ion cells require proper handling, protected packs, correct chargers, and safe storage. Do not solder directly to battery terminals.
Payment and Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
You may also like
Let customers speak for us
What customers think about the store
This store specializes in high-quality lithium-ion batteries and battery-building supplies with exceptional customer service. Customers praise fast shipping (often 1-2 days), competitive pricing, knowledgeable support, and authentic products. The owner provide...




