7S 24V BMS 10A–30A Li-ion Battery Protection Board w/ Balance
7S 24V BMS 10A–30A Li-ion Battery Protection Board w/ Balance
7S 24V Li-ion BMS with Balance – 10A / 15A / 20A / 30A
Keep your 18650 lithium-ion battery pack running safely and efficiently with this 7-series (7S) Battery Management System (BMS). Designed for 24V / 25.9V applications including e-bikes, electric scooters, and DIY battery packs, this PCB board features built-in cell balancing to extend battery life and maintain consistent performance across all cells.
Key Features
- Multi-Current Options: Choose from 10A, 15A, 20A, or 30A continuous discharge ratings to match your exact power requirements.
- Built-In Cell Balancing: Automatically equalizes charge across all 7 series cells, maximizing capacity and longevity of your 18650 battery pack.
- Wide Operating Temperature: Rated from -40°C to +85°C, making it suitable for demanding indoor and outdoor environments.
- Overcharge & Over-Discharge Protection: Intelligent circuit safeguards your cells against overcharging, over-discharging, overcurrent, and short circuits.
- Compact SMD Package: Surface-mount design keeps the board small and easy to integrate into custom battery enclosures.
- Voltage Regulator Type: Functions as a voltage regulator circuit for stable and reliable power output.
- Customizable: Available in multiple current ratings; suitable for a wide range of 7S 18650 Li-ion battery configurations.
Specifications
- Configuration: 7S (7 Series)
- Nominal Voltage: 24V (25.9V fully charged)
- Current Options: 10A / 15A / 20A / 30A
- Cell Type: 18650 Li-ion
- Operating Temperature: -40°C to +85°C
- Package Type: SMD
- Condition: New
- Country of Origin: Made in China
Compatible Applications
- E-Bikes & Electric Scooters (24V systems)
- DIY 18650 Li-ion Battery Packs
- Electric Power Tools
- Portable Power Stations
- Robotics & RC Vehicles
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Frequently Asked Questions
Q: What battery configuration is this 7S BMS compatible with?
A: This BMS is designed specifically for 7-series (7S) 18650 lithium-ion battery packs with a nominal voltage of 24V (25.9V fully charged). It is ideal for e-bike and electric scooter battery systems operating at this voltage.
Q: Which current rating should I choose for my e-bike or scooter?
A: Select the current rating (10A, 15A, 20A, or 30A) based on the peak discharge current your motor or load requires. For most standard e-bikes, a 20A or 30A rating is recommended to handle motor startup surges. Check your motor's specifications to confirm the required continuous and peak current draw.
Q: Does this BMS include cell balancing?
A: Yes! This board includes built-in passive cell balancing, which helps equalize the voltage across all 7 cells during charging. This extends the overall lifespan of your 18650 battery pack and ensures each cell is charged safely and evenly.
Q: Is this BMS suitable for outdoor use on an e-bike?
A: Absolutely. With an operating temperature range of -40°C to +85°C, this BMS is engineered to handle the varying temperature conditions encountered in outdoor e-bike and scooter use, from cold winter rides to hot summer commutes.