Description
The DALY BMS Li-ion 6S 24V 80A Battery Management System is a protection and balancing board designed specifically for 6S lithium-ion battery packs with a nominal voltage of 24V. It is suitable for DIY battery packs and applications such as electric bikes, power tools, solar systems, RVs and energy storage projects.
This BMS continuously monitors the battery pack and helps protect the cells against common electrical conditions such as overcharging, over-discharging, excessive current and short circuits. It also includes temperature protection to help maintain safe battery operation.
With an 80A continuous discharge current and a peak current rating of 240A ±40A, this DALY BMS is suitable for higher-current Li-ion battery applications where reliable battery protection is required.
6S Fixed Li-ion Configuration
This is a 6S fixed-configuration BMS, meaning it is designed specifically for a battery pack containing 6 Li-ion cells or cell groups connected in series.
It is strictly designed for Li-ion batteries and should not be used with:
- LiFePO4 batteries
- Li-Metal batteries
- LTO batteries
- Other battery chemistries requiring different protection voltages
Battery Protection Functions
The DALY 6S 24V 80A BMS provides multiple protection functions to help protect your battery pack:
- Overcharge Protection: Detects cell voltage at approximately 4.25V.
- Over-discharge Protection: Helps stop discharge when the cell voltage reaches the specified protection level.
- Over-current Protection: Protects the battery pack from excessive current.
- Short-circuit Protection: Disconnects the battery in the event of an external short circuit.
- Temperature Protection: Provides protection during charging and discharging when temperatures exceed the specified limits.
- Cell Balancing: Helps maintain a more balanced voltage between cells during operation.
Cell Balancing
The built-in balancing function uses a 4.18V balance detection voltage with a balancing current of approximately 30 ± 5mA. This helps maintain better voltage consistency between individual cells in the 6S battery pack.
Temperature Protection
The BMS includes temperature protection for both charging and discharging. The specified charging protection range is below -5°C or above 50°C, while discharge protection is specified at temperatures above 70°C.
The working temperature range is -20°C to 70°C, with a sleeping temperature range of -40°C to 80°C.
Compatible Battery Cells
This BMS is designed for lithium-ion battery packs using cells such as:
- 18650 Li-ion cells
- 21700 Li-ion cells
- 36500 cylindrical Li-ion cells
- Prismatic Li-ion cells
Make sure your battery pack is configured as 6S and uses the correct Li-ion cell chemistry before connecting the BMS.
Applications
The DALY 6S 24V 80A BMS can be used in a variety of Li-ion battery projects, including:
- Electric bikes and e-bike battery packs
- Electric skateboards
- Solar power systems
- RV battery systems
- Camping boats
- Power tools
- Lawn equipment
- Household energy storage
- DIY lithium-ion battery packs
- Custom battery protection projects
Key Features
- DALY 6S 24V 80A Li-ion BMS
- 80A continuous discharge current
- Peak current up to 240A ±40A
- Designed for 6S Li-ion battery packs
- Built-in cell balancing
- Overcharge protection
- Over-discharge protection
- Over-current protection
- Short-circuit protection
- Temperature protection
- Suitable for 18650, 21700 and other compatible Li-ion cells
- Includes 7-wire balance/sense cable with connector
- Instruction manual included
- Product specifications include ISO, FCC, RoHS, PSE and CE approval claims
What You Get
- 1 × DALY 6S 24V 80A Li-ion BMS
- 1 × 7-wire balance/sense cable with connector
- 1 × Instruction manual
Technical Specifications
| Specification | Details |
|---|---|
| Brand | DALY |
| Battery Type | Li-ion |
| Configuration | 6S |
| Nominal Battery Voltage | 24V |
| Continuous Discharge Current | 80A |
| Peak Current | 240A ±40A |
| Main Circuit Inner Resistance | ≤20mΩ |
| Charge Voltage | S × 4.25V |
| Charge Current | 40A |
| Overcharge Detection Voltage | 4.25 ± 0.05V |
| Overcharge Protection Delay | 1 second |
| Overcharge Release Voltage | 4.15 ± 0.05V |
| Balance Detection Voltage | 4.18V |
| Balance Release Voltage | 4.18V |
| Balance Current | 30 ± 5mA |
| Over-discharge Detection Voltage | 2.7 ± 0.1V |
| Over-discharge Detection Delay | 1 second |
| Over-discharge Release Voltage | 3.0 ± 1.0V |
| Over-current Detection Delay | 1ms |
| Over-current Detection Voltage | Off load |
| Short-circuit Protection Condition | Short circuit external load |
| Short-circuit Detection Delay | 250μs |
| Short-circuit Protection Relay Condition | Off load |
| Charging Temperature Protection | Below -5°C or above 50°C |
| Discharge Temperature Protection | Above 70°C |
| Working Current | 100mA |
| Sleeping Current | 20μA |
| Working Temperature | -20°C to 70°C |
| Sleeping Temperature | -40°C to 80°C |
| Weight | 1 lb |
| Size | 9.5 × 6.5 × 2.5 inches |
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