13S 48V 30A BMS Lithium Battery Protection Board for E-Scooter

13S 48V 30A BMS Lithium Battery Protection Board — Built for E-Scooters & E-Bikes

Keep your 48V lithium battery pack running safely and efficiently with this 13S Battery Management System (BMS) protection board. Designed for 18650 lithium cell configurations, this common-port BMS delivers robust overcharge, over-discharge, short-circuit, and over-temperature protection — making it an ideal replacement or upgrade for electric scooters, e-bikes, and DIY battery packs.

Whether you're building a custom 48V battery or replacing a faulty protection board on your e-scooter, this BMS handles continuous 30A current with precision and reliability.

Made in Mainland China.

Key Features & Specifications

• Configuration: 13S (48V nominal) — compatible with 18650 lithium cells
• Wiring Mode: Common port (same port for charge & discharge)
• Continuous Working Current: 30A
• Continuous Charging Current: 30A
• Recommended Charger Voltage: 56V–60V
• Single Cell Overcharge Voltage: 4.25V ± 0.025V
• Single Cell Over-Discharge Voltage: 2.7V ± 0.08V
• Charging Over-Temperature Protection: 63°C
• Discharge Over-Temperature Protection: 85°C
• Operating Temperature Range: -40°C to +80°C
• Main Circuit Internal Resistance: ≤15mΩ
• Working Power Consumption: ≤40µA
• Short-Circuit Recovery: Charge recovery / disconnect load
• Overcurrent Recovery: Charge recovery / disconnect load
• Disconnection Protection: Supported
• Cable Size: 2.0mm pitch / 40cm length
• Material: PC + Metal

Protection Functions

• ✅ Overcharge Protection
• ✅ Over-Discharge Protection
• ✅ Short-Circuit Protection
• ✅ Over-Temperature Protection (charge & discharge)
• ✅ Overcurrent Protection
• ✅ Disconnection Protection

What's in the Box?

• 1 × 13S 48V 30A BMS Protection Board

Note: Battery cells, charger, and all other components are NOT included. Images are for illustration purposes. Color may vary slightly due to lighting and display settings. Measurement tolerance: ±1–3cm.

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For more information on lithium battery safety standards, visit UL Lithium Battery Safety Resources or refer to OSHA's guidance on lithium battery hazards.

Frequently Asked Questions

Q: What does a BMS (Battery Management System) protection board do?

A: A BMS protection board monitors and manages a lithium battery pack's charge and discharge cycles. It protects against overcharging, over-discharging, short circuits, overcurrent, and dangerous temperature levels — all of which can damage cells or cause safety hazards. This 13S 48V BMS is specifically designed for 13-cell series lithium packs commonly used in e-scooters and e-bikes.

Q: Is this BMS compatible with my electric scooter or e-bike battery?

A: This BMS is compatible with 13S (48V nominal) lithium battery configurations using 18650 cells. It supports a continuous current of 30A and a recommended charger voltage of 56V–60V. Always verify your existing battery configuration and current requirements before purchasing to ensure compatibility.

Q: What is a common port BMS?

A: A common port BMS uses the same port for both charging and discharging, simplifying wiring and reducing the number of connectors needed. This design is popular in e-scooter and DIY battery applications for its compact, straightforward integration.

Q: What charger voltage should I use with this BMS?

A: The recommended charger voltage for this 13S 48V BMS is 56V to 60V. Using a charger outside this range may trigger protection circuits or damage the board and battery cells.