Seplos V3 Smart BMS 16S 200A 48V CAN/RS485 Battery Protection Board Lithium Ion Type A Batteries Inverte

Designed for high-performance 48V battery systems, the Seplos 3.0 Type  200A BMS combines industrial-grade reliability with intelligent management. It’s the trusted "brain" for stable charge-discharge control and battery lifespan optimization.

✅ Split Design Advantage: Communication port integrated with status light, separated from the main board for flexible installation & easy maintenance ✅ Active Balancer Trigger: Built-in dry contact activates balancer automatically when voltage deviation is detected ✅ 200A High Current Support: Ideal for 48V systems with 200A charge-discharge current (max 210A) ✅ Precision & Protection: Accurate SOC calculation, 10A current limitation, and independent chip sampling for safety ✅ Dual Communication Protocols: CAN/RS485*2 for seamless inverter integration + Bluetooth monitoring ✅ Industrial-Grade Build: Rigorously manufactured for durability in diverse environments

The Seplos 3.0 Type B 200A BMS is engineered to deliver reliable battery management for 48V systems, with a focus on versatility and precision. Its split design (communication port + status light separated from the main board) enhances installation flexibility, while the built-in dry contact ensures proactive voltage balancing—protecting batteries from damage caused by voltage inconsistency.

Widely applied for the POLO-L-104 series, UPS backup, and industrial equipment.
Note: Seplos 3.0 BMS and 2.0 BMS are not parallel-compatible and require separate firmware updates (do not mix).

🎯 Key Features

1. Split Design for Flexibility

• Communication port and status light are split from the main board, allowing flexible placement during installation—ideal for tight spaces or custom battery enclosures.
• Easy maintenance: Status light and communication components are accessible without disassembling the entire BMS, reducing downtime.

2. Intelligent Active Balancing

• Built-in dry contact connects to the active balancer, which powers on automatically when the BMS detects voltage deviation between cells.
• Prevents overcharging/over-discharging of individual cells, extending battery cycle life and ensuring uniform performance.

3. Precision Monitoring & Control

• Accurate SOC (State of Charge) calculation: Provides real-time battery capacity data for reliable power planning.
• 10A current limitation: Prevents excessive current flow, protecting both the BMS and battery from damage.
• Independent chip sampling circuits: Ensures stable and accurate voltage/current detection, reducing signal interference.
• Gap charging support: Optimizes charging efficiency and battery health.

4. Seamless Connectivity & Monitoring

• Dual CAN/RS485 communication ports: Enables seamless integration with most inverters and central control systems—ideal for large-scale energy storage projects.
• Bluetooth monitoring: Conveniently check battery status (voltage, current, SOC) via mobile devices—no need for wired connections.

5. Industrial-Grade Durability

• Manufactured to industrial standards, withstanding harsh operating conditions (temperature range: -20℃~70℃ working, -40℃~85℃ storage).
• Passive balancing capability: Adds an extra layer of protection to maintain cell consistency.

Brand

Seplos (Genuine 3.0 Type B)

Model

SEP-BMS-3.0B-200A

Rated Charge-Discharge Current

200A (Type), Max 210A

Compatible Battery Configurations

16S (LFP batteries)

System Voltage	48V (Type)
Working Voltage Range	Min 40V ~ Max 59V
Charge Voltage Range	Min 48V ~ Max 60V (Type: 54V)
Working Temperature	Min -20℃ ~ Max 70℃ (Type: 25℃)
Storage Temperature	Min -40℃ ~ Max 85℃ (Type: 25℃)
Ambient Humidity	Min 10% ~ Max 85% (non-condensing)
Internal Resistance	<2mΩ
Communication Protocols	CAN/RS485*2 (inverter communication) + Bluetooth (monitoring)

🛠️ Application Scenarios

• 🏠 Household Energy Storage: Works with 48V LFP/NCM battery packs for off-grid/grid-tied solar systems.
• 🚐 RV & Camping Power: Powers portable appliances and devices with stable 200A current output.
• ⚡ UPS Backup Systems: Ensures uninterrupted power for commercial/industrial equipment during outages.
• 🏭 Industrial Equipment: Compatible with the POLO-L-104 series and other 48V industrial battery applications.
• 🚗 EV Auxiliary Power: Suitable for NCM battery-powered auxiliary systems in electric vehicles.

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⚠️ Important Installation & Usage Notes

1. Compatibility Warning: Do not parallel Seplos 3.0 BMS with 2.0 BMS—they have different core designs.
2. Firmware Update: Use dedicated firmware for 3.0 Type B; do not mix with 2.0 firmware.
3. Battery Matching: Ensure correct cell count (16S for LFP) to avoid damage.
4. Dry Contact Connection: Confirm proper wiring of the dry contact to the active balancer for automatic balancing.
5. Environmental Protection: Avoid exposure to condensing humidity (ambient humidity ≤85%) and extreme temperatures beyond specified ranges.