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72V 50Ah Battery for Surron Light Bee Battery Upgrade | Built with Samsung 50S Cells | Smart Bluetooth BMS
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- Premium Samsung 50S Cells : This 72V 50Ah lithium battery is engineered with authentic Samsung 50S cells, delivering a high discharge current for exceptional power output. Experience robust acceleration and consistent performance for your high-demand electric vehicles.
- High-Capacity 3.6kWh Pack : With its substantial 50Ah capacity, this 72V battery offers a massive 3.6kWh of energy storage. This translates to an exceptionally long range, allowing for significantly longer journeys on a single charge compared to standard batteries.
- Compact and Lightweight Design : Despite its high capacity, this 72V 50Ah battery is remarkably compact (245*230*140mm) and lightweight at approximately 14kg. This optimal power-to-weight ratio ensures easy handling and straightforward installation into a wide range of vehicle frames.
- Longevity with Smart BMS : An integrated smart BMS (Battery Management System) provides comprehensive protection against over-charge, over-discharge, short circuits, and overheating. This crucial feature ensures operational safety, maintains cell balance, and maximizes the overall lifespan of the battery pack.
- Effortless Installation & Wide Compatibility : Designed as a direct replacement, this 72V 50Ah battery comes with standard connectors for easy installation. It boasts broad compatibility with a wide range of 72V electric vehicles, including e-motorcycles, e-scooters, and trikes, offering a seamless power upgrade.
BMS
100A for 72V 6000W Motor(MAX)
120A for 72V 7200W Motor(MAX)
200A for 72V 12000W Motor(MAX)
Discharge Plug
QS8 plug
Anderson 50A
Wire only
QS10 Plug
Anderson 120A
Anderson 350A
BMS
Discharge Plug
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1 Years Warranty
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72V 50Ah Lithium Battery
Technical Specifications
Key Specifications
72V
Nominal Voltage
50Ah
Capacity
200 Cells
Samsung 21700 50S
300A
Max Discharge Current
Detailed Specifications
| Cell Configuration | 20S10P (20 series, 10 parallel) |
| Cell Type | Genuine Samsung 21700 50S |
| Total Energy | 3.6 kWh |
| Charging Voltage | 84V (maximum) |
| Charging Current | 10A (fast charge supported) |
| Operating Temperature | -20°C to 60°C |
| Cycle Life | 1,000+ charge-discharge cycles |
| Dimensions | Approx. L245 × W230 × 140 mm |
| Weight | Approx. 14 kg |
Cell Configuration
20S10P (20 series, 10 parallel)
Cell Type
Genuine Samsung 21700 50S
Total Energy
3.6 kWh
Charging Voltage
84V (maximum)
Charging Current
10A (fast charge supported)
Operating Temperature
-20°C to 60°C
Cycle Life
1,000+ charge-discharge cycles
Dimensions
Approx. L245 × W230 × 140 mm
Weight
Approx. 14 kg
Technical Features
Monitoring System
- Bluetooth connectivity for real-time monitoring
- Voltage, temperature, and state of charge tracking
- Real-time cell balancing
Protection Features
- Overcharge and over-discharge protection
- Overcurrent and short circuit protection
- Temperature monitoring with automatic shutdown
Performance Specifications
- High discharge rate capability
- Long cycle life with minimal capacity degradation
- Wide operating temperature range
Samsung 21700-50S Battery Cell Specifications
Model: INR21700-50S
The Samsung 21700-50S is a high-performance lithium-ion battery cell offering exceptional capacity and discharge capabilities for demanding applications.
Key Parameters
| Specification | Detail |
|---|---|
| Nominal Capacity | 5000mAh (5.0Ah) |
| Minimum Capacity | 4800mAh (4.8Ah) |
| Nominal Voltage | 3.6V |
| Maximum Charging Voltage | 4.2V |
| Continuous Discharge Current | 25A |
| Maximum Discharge Current | 45A (may require limiting based on specific usage and temperature) |
| Internal Resistance | Typically around 13mΩ (AC internal resistance) |
| Weight | Approx. 68g |
| Dimensions | 21.1mm (diameter) × 70.4mm (length) |
| Charging Method | Constant Current-Constant Voltage (CC-CV) |
| Operating Temperature Range (Charging) | 0°C to 45°C |
| Operating Temperature Range (Discharging) | -20°C to 60°C |
| Energy Density | Typically around 250Wh/kg (actual value depends on test conditions) |
Key Features
- High Capacity: 5000mAh capacity provides superior energy storage among batteries of comparable size, ideal for applications requiring extended runtime.
- High-Rate Discharge: Sustained 25A discharge capability and peak 45A discharge capacity enable ample power delivery to high-power devices.
- High Energy Density: Superior energy density means greater energy output per unit weight.
- Superior Safety: As a renowned battery manufacturer, Samsung cells typically offer robust safety assurance.
- Extended Lifespan: Delivers long cycle life under proper usage conditions.
- Versatile Applications: Suitable for diverse applications requiring high capacity and high-rate discharge.
Applications
- Power Tools
- Electric Vehicles
- Hybrid Vehicles
- Drones
- Power Banks
- Energy Storage Systems
Precautions
- Carefully review the battery specification sheet before use to understand all parameters and usage precautions.
- Use an appropriate charger for charging to avoid overcharging or over-discharging.
- Avoid using the battery in high-temperature or humid environments.
- Prevent short circuits.
- If the battery will not be used for an extended period, store it in a dry, cool place with a moderate charge level.
Lithium Battery BMS Features and Functions
Battery Management System (BMS) is an electronic system that manages rechargeable batteries by monitoring their state, calculating secondary data, protecting the battery, and controlling its environment.
Key Features
Overcharge Protection
Prevents excessive battery charging that could damage the battery or cause safety hazards.
Overdischarge Protection
Prevents excessive battery discharge that shortens battery lifespan.
Overcurrent Protection
Prevents excessive charging/discharging currents that could damage the battery or related circuits.
Short Circuit Protection
Detects and prevents short circuits to safeguard the battery and system.
Overtemperature Protection
Monitors battery temperature to prevent overheating and ensure safety.
Cell Balancing
Equalizes voltage across cells within a battery pack to enhance overall performance and lifespan.
Voltage Monitoring
Continuously tracks voltage of each individual cell.
Current Monitoring
Continuously tracks charging and discharging currents.
Temperature Monitoring
Continuously tracks battery temperature.
State of Charge (SOC)
Estimates remaining battery capacity, displayed as a percentage or residual capacity.
State of Health (SOH)
Assesses battery health, including capacity degradation and increased internal resistance.
Communication
Interfaces with external devices via Bluetooth, UART, CAN BUS, RS485, etc., to upload battery data and receive control commands.
Fault Diagnosis
Detects battery pack faults and triggers alerts.
Data Logging
Records battery voltage, current, temperature, and other data for analysis and diagnostics.
Safety Certification
Complies with relevant safety standards such as UL, CE, RoHS, etc.
Primary Functions
Battery Protection
Prevents battery damage under various abnormal conditions.
Extended Lifespan
Optimizes battery usage patterns to prolong service life.
Enhanced Performance
Ensures each cell operates at peak condition, improving overall pack performance.
Safety Assurance
Prevents safety incidents caused by battery issues.
Data Monitoring
Provides real-time battery data for user status awareness.
Intelligent Management
Enables smart control and management of the battery pack.
Note: A properly functioning BMS is essential for the safe and efficient operation of lithium battery packs in various applications including electric vehicles, energy storage systems, and portable electronics.
84V 10A Smart Fast Charger for 72V 50Ah Lithium Battery Packs
Overview: This smart fast charger is specifically designed for 72V 50Ah lithium battery packs, featuring intelligent charging control, comprehensive safety protections, and fast charging capabilities.
Key Parameters
| Input Voltage | AC 100-240V (50/60Hz) |
|---|---|
| Output Voltage | 84V DC |
| Output Current | 10A DC |
| Compatible Battery Type | Lithium-ion (Li-ion) |
| Charging Mode | Constant Current-Constant Voltage (CC-CV) |
| Charge Cut-off Voltage | 84V (±0.2V) |
| Float Charge Voltage | 82V-83V (if supported) |
| Efficiency | Greater than 85% |
| Operating Temperature | -10°C to 40°C |
| Storage Temperature | -20°C to 70°C |
| Cooling Method | Fan cooling or natural convection |
| Housing Material | Aluminum alloy |
| Dimensions | Approx. 175×90×50mm |
| Certifications | CE, UL, CCC |
Protection Functions
Overvoltage Protection (OVP)
Overcurrent Protection (OCP)
Short Circuit Protection (SCP)
Overtemperature Protection (OTP)
Reverse Polarity Protection
Key Features
Intelligent Charging Control
Automatic battery type recognition and multi-stage charging with pre-charge, constant-current, and constant-voltage modes.
Fast Charging
10A charging current significantly reduces charging time. For a 50Ah battery, full charge is theoretically achievable in 5 hours.
Safety Protection
Comprehensive protection including overvoltage, overcurrent, short-circuit, over-temperature, and reverse polarity protection.
Display Functions
LED indicators display charging status (charging, fully charged, fault).
Balance Charging Function
Intelligent balance charging to equalize voltage across cells in a battery pack.
Communication Function (Optional)
Optional communication interface for advanced monitoring and control.
High Efficiency & Energy Saving
Efficient circuit design with energy conversion efficiency greater than 85%.
High Reliability
Premium components and strict quality control ensure charger stability and dependability.
Note: This charger is specifically designed for 72V lithium battery packs. Always ensure compatibility with your battery system before use and follow all safety guidelines provided by the manufacturer.
72V 50AH 3600Wh High-Performance Battery
This premium battery delivers exceptional power and extended runtime for electric vehicles and high-demand applications. Featuring advanced lithium technology for superior performance and reliability.
1.5H
Riding time with 72V 2000W motor
90KM
Range at 60km/h riding speed
5H
Charging time with 10A fast charger
Discharge Plug Options
Need a custom plug option? Contact our customer service team for assistance.
QS8
Anderson
Wire Only
XT90F/M
XT60F/M
Small Anderson
Charger Power Cables
Appropriate charger AC power cables for different countries/regions
US (Default)
EU
AU
UK
72V 50AH Lithium-ion Battery Specifications
High-performance battery pack for electric vehicles and energy storage systems
Basic Parameters
Battery Specifications
- Battery Model: 72V 50AH 3600Wh
- Battery Type: Lithium-ion rechargeable
- Production Process: 20S 10P
- Standard Voltage: 72V
- Battery Capacity: 50AH
- Dimensions: L245 × W230 × H140mm
- Weight: Approx. 14KG
Cell Parameters
- Cell Brand: SAMSUNG
- Cell Model: INR21700-50S
- Cell Type: Lithium-ion rechargeable
- Nominal Voltage: 3.6V
- Nominal Capacity: 5000mAh
- Max Continuous Discharge: 25A (~5C)
- Peak Discharge: 45A
- Charge Cut-off: 5A, 4.20V, CCCV 100mA cut-off
- Discharge Cut-off: 2.5V cut-off
BMS Specifications
BMS Details
- BMS Brand: JBD/ANT/JK
- Selection Criteria: Based on discharge current, battery dimensions, or customer requirements
- Installation: Built into the battery pack
- Communication: Bluetooth and WiFi
- Compatibility: iOS and Android systems
- Functions: Real-time monitoring, remote control
- Optional Extensions: CAN BUS/RS485/GPS (Customizable)
Battery Pack Performance
- Charge Cut-off Voltage: 84V (Full charge state)
- Discharge Cut-off Voltage: 60V (Automatic protection)
- Rated Discharge Current: Based on motor power
- Continuous Discharge Current: Determined by BMS rating
- Peak Discharge Current: Based on motor power and BMS capacity
Charger Specifications
Charger Details
- Input Voltage: 100V~240V (Universal)
- Output Current: 84V 10A
- Charging Method: Constant Current & Voltage (CC & CV)
- Charging Time: 80% in 4 hours, Full charge in 5-7 hours
- Plug Options: US/EU/UK/AU standards available
Temperature Specifications
| Component | Operating Temperature | Notes |
|---|---|---|
| Battery (Charging) | 0 to 60℃ | Recommended < 45℃ during charging |
| Battery (Discharging) | -20 to 60℃ | Must maintain < 60℃ during discharge |
| Charger | 0 to 60℃ | Recommended < 45℃ during charging |
Important Notes
State of Charge (SOC) Guidelines
- Optimal: Maintain 40-60% (3.7-3.8V per cell)
- Prohibited: Long-term storage at <10% or 100% SOC (accelerates aging)
Temperature Control
- 15-25°C: Ideal environment (<2% annual degradation)
- -20~45°C: Permissible range (requires SOC control)
- 50°C or <-30°C: Strictly prohibited (hazard risk)
Physical Protection
- Avoid compression/impact (even with ABS casing)
- Keep away from metal objects to prevent short circuits
Recommendations
Long-term Storage Guidelines
For long-term storage (>1 month), perform periodic brief charge/discharge cycles to maintain lithium-ion activity and ensure normal energy output. We recommend performing a shallow cycle (30%→80%) every 3 months.
Lithium ion Battery
72V 50AH
BOOANT
• Battery Pack ×1
• 84V 10A Fast Charger ×1
• AC Power Cord ×1
• Discharge Extension Cord ×1