Batterie lithium triangulaire BOOANT 72 V 30 Ah pour vélo électrique
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- Cellule de batterie : batterie au lithium BOOANT 72V 30AH, utilisant une cellule de batterie Samsung 21700 (5000mAh) 3,7V d'origine, jusqu'à 2160Wh de sortie d'énergie.
- Poids de la batterie : Batterie BOOANT 72 V 30 AH pour vélo électrique. Une seule cellule Samsung 21700 pèse environ 0,07 kg. La batterie utilise un montage en série et en parallèle 20S 6P. Avec 120 cellules, le poids total de la batterie est d'environ 9 kg (20 livres).
- BMS de la batterie : Batterie BOOANT 72 V 30 Ah, avec BMS intégré de haute qualité et prise en charge de la communication Bluetooth. Le BMS peut être modifié en fonction de la puissance du moteur du vélo électrique. Offre une protection complète de la batterie (courts-circuits, surintensités et surcharges).
- Chargeur de batterie : Batterie pour moto électrique BOOANT 72 V 30 Ah, avec chargeur rapide 84 V 5 A, charge complète en 6 heures maximum. Protection de charge par puce intelligente
- Garantie de la batterie : La batterie lithium BOOANT est garantie 1 an ! Une assistance technique et un service client en ligne sont également disponibles, avec une réponse rapide sous 24 heures.
BOOANT 72V 30Ah Triangle Battery
Samsung INR21700-50G Cells
Samsung INR21700-50G is a high-capacity 21700 lithium-ion cell manufactured by Samsung SDI, featuring 5000mAh capacity, 9.8A continuous discharge, and 1000+ cycle life. It is widely used in e-bike and high-energy battery pack applications.
Samsung 50G vs 50S – Which Cell Is Better?
- 50G: Higher capacity (5000mAh), longer range
- 50S: Higher discharge current, better for high-power builds
- 50G is ideal for endurance-focused e-bike batteries
What Does 120 Cells Mean in a 72V Battery?
A 72V 30Ah battery built with 120 Samsung 50G cells (20S6P) delivers approximately 2160Wh of energy, supporting long-range riding and stable performance under continuous load.
JBD Smart Bluetooth BMS
JBD Smart Bluetooth BMS is an intelligent battery management system designed for 20S 72V lithium battery packs. It provides real-time monitoring of voltage, current, temperature and state of charge, with remote on/off control via iOS and Android apps. Six-layer protection ensures safe and reliable operation.
Integrated into BOOANT 72V lithium battery systems using Samsung 21700 cells for high-performance e-mobility applications.
Why This BMS Matters in Real-World Use
- Stable power output under high load riding
- Reduced risk of battery shutdown during acceleration
- Longer battery lifespan with active balancing
- Real-time diagnostics to prevent unexpected failure
JBD BMS Protection Features – 6-Layer Safety System
- Overcharge protection prevents cell damage from excessive voltage
- Over-discharge protection safeguards against deep discharge
- Temperature monitoring with charge/discharge cutoff
- Overcurrent and short circuit protection for system safety
- Active cell balancing extends overall battery pack lifespan
- Remote on/off control via Bluetooth app for added convenience
- Overcharge Protection
- Over-Discharge Protection
- Temperature Protection
- Overcurrent Protection
- Short Circuit Protection
- Cell Balancing
Remote Monitoring & Control
Connect via Bluetooth · Monitor real-time data · Enable/disable charge/discharge remotely
WATE 84V 5A Smart Fast Charger
WATE 84V 5A smart fast charger is an intelligent charging solution engineered for 20S 72V lithium-ion battery packs. It employs CC/CV (Constant Current / Constant Voltage) charging methodology with automatic shutoff upon full charge, delivering 420W of reliable output power.
Included with BOOANT 72V lithium battery systems, providing optimized charging for Samsung 21700 cell-based packs in e-bike and electric mobility applications.
Why This Charger Matters for Your Battery
- Faster charging with 5A output reduces downtime between rides
- CC/CV algorithm optimizes cell longevity and prevents overcharging
- Worldwide compatibility with 100-240V AC input voltage range
- LED indicators provide clear, real-time charging status at a glance
Who Should Use an 84V 5A Charger?
- 72V e-bike upgrade users seeking faster charging than stock 2A–3A chargers
- High-power builds (3000W+) requiring efficient and reliable charging
- Long-range battery users with 30Ah–50Ah packs who need reduced charge time
- Fast-charging demand users who prioritize minimal downtime between rides
Compatible with most 72V e-bike, scooter and motorcycle battery systems using Li-ion cells.
5A vs 3A Charger – What's the Difference?
| Comparison | WATE 84V 5A Charger | Standard 84V 3A Charger |
|---|---|---|
| Charging Time | ~6–7 hours for 72V 30Ah | ~10–12 hours for 72V 30Ah |
| Heat Generation | Aluminum alloy housing with efficient heat dissipation | Lower output but longer charging duration increases cumulative heat exposure |
| Battery Life Impact | 5A charge rate within safe limits for Samsung 50G and most 21700 cells | Slower charge rate is gentler but significantly extends charging time |
The 5A charger provides an optimal balance of charging speed and cell longevity for 30Ah–50Ah high-capacity packs.
Typical Charging Time
| Battery Capacity | Estimated Charging Time (0–100%) | Configuration Example |
|---|---|---|
| 72V 20Ah | ~4–5 hours | 20S5P (100 cells) |
| 72V 30Ah | ~6–7 hours | 20S6P (120 cells) |
| 72V 40Ah | ~8–9 hours | 20S8P (160 cells) |
| 72V 50Ah | ~10–12 hours | 20S10P (200 cells) |
Actual charging time may vary based on battery state of charge, ambient temperature, and cell condition.
Important Compatibility Notes
- Only for 72V (20S) Li-ion battery systems with NCA or NMC chemistry
- Not compatible with LiFePO4 72V packs — different voltage requirements apply
- Confirm connector type and polarity before first use to ensure proper mating
Always verify your battery's charging specifications and connector configuration before connecting any charger.
WATE Charger Protection – Multi-Layer Safety System
- Over-Voltage Protection prevents output from exceeding safe cell limits
- Over-Current Protection safeguards against excessive charging current
- Short Circuit Protection instantly cuts output during fault conditions
- Over-Temperature Protection monitors internal heat during operation
- Reverse Polarity Protection prevents damage from incorrect connection
- Auto shutoff engages when the battery reaches full charge voltage
- Over-Voltage Protection (OVP)
- Over-Current Protection (OCP)
- Short Circuit Protection (SCP)
- Over-Temperature Protection (OTP)
- Reverse Polarity Protection
- Auto Shutoff (Full Charge)
Smart CC/CV Charging with LED Indicator
Constant Current → Constant Voltage → Auto Shutoff. Red = Charging, Green = Full
Custom Discharge Connector
Custom discharge connectors allow matching the battery output plug to the specific controller interface of your e-bike, scooter or electric motorcycle. Connector options include XT60 with 60A rating, XT90 and XT90-S anti-spark with 90A rating, QS8 with 120A built-in anti-spark, and Anderson SB50 or SB120 modular connectors. Each connector is professionally soldered with heat-shrink insulation for reliable high-current performance in 72V lithium battery systems.
Connector selection should always match the controller input connector to avoid adapters and minimize contact resistance.
⚠️ Important: Using an undersized connector may lead to overheating, voltage drop or connector damage under load. Non anti-spark connectors can produce visible sparks when connecting high-voltage batteries, which may degrade connector lifespan and stress controller capacitors.
How to Choose the Right Connector
Choose based on your system current, not just voltage:
- Up to 60A → XT60
- 60A–90A → XT90 / XT90-S
- 90A–120A+ → QS8
How It Works
Select your connector · Professional soldering and heat-shrink · Ready to plug in
72V 30Ah Battery BMS Discharge Current Selection Guide
BMS discharge current defines the maximum continuous current a battery can safely deliver to a motor system.
For a 72V 30Ah lithium battery using a JBD Smart BMS, three standard configurations are available: 30A (efficiency-focused), 50A (balanced performance), and 60A (high-power output).
Each option is matched to specific e-bike motor power levels to ensure safe operation, optimal efficiency, and battery longevity.
Quick Selection Guide
- 30A BMS: Best for 500W–1200W motors, maximum efficiency and longest range
- 50A BMS: Best for 1500W–2500W motors, balanced performance (most popular)
- 60A BMS: Best for 2500W–3500W+ motors, maximum acceleration and torque
How to Choose the Right BMS Current
If your motor is 500W–1200W → choose 30A
You will maximize efficiency and riding range (55–70 miles).
If your motor is 1500W–2500W → choose 50A
You will get the best balance between power and range (45–60 miles).
If your motor is 2500W–3500W+ → choose 60A
You will get maximum performance with shorter range (35–50 miles).
BMS Current Comparison
| Option | Motor Range | Range | Use Case |
|---|---|---|---|
| 30A | 500–1200W | 55–70 miles | Commuting / Touring |
| 50A | 1500–2500W | 45–60 miles | Mixed Riding / Cargo |
| 60A | 2500–3500W+ | 35–50 miles | Performance / Off-road |
Technical Notes
- All JBD BMS options support continuous discharge rating only; peak current is typically 2–3× higher for short bursts.
- Battery energy capacity: 2160Wh (72V × 30Ah).
- Built-in protections: overcharge, over-discharge, short circuit, overcurrent, temperature monitoring.
- Compatible cell type: Samsung INR21700-50G / 50S configurations.
FAQ
What does BMS discharge current mean?
It is the maximum continuous current a battery can safely supply to a motor system.
Which BMS option is best for most riders?
The 50A option is the most balanced choice for 1500W–2500W motors.
Does higher BMS current increase speed?
Higher current allows higher power output, but actual speed depends on motor and controller limits.
How does BMS current affect battery range?
Higher current enables more powerful motors but consumes energy faster — 30A gives 55–70 miles, 50A gives 45–60 miles, 60A gives 35–50 miles.
What is the difference between continuous and peak current?
Continuous current is the sustained rating for normal riding. Peak current is 2–3× higher for short bursts during acceleration and climbing.
⚡ Actual range depends on rider weight, terrain, speed, and weather conditions. Aggressive throttle use and frequent stops will reduce total range by 15–30% compared to steady cruising on flat terrain.
🔋 All BMS ratings shown are continuous discharge ratings from JBD. Peak discharge ratings are typically 2–3× higher for short bursts, providing ample headroom for acceleration and climbing without triggering protection circuits.
🛡️ Every JBD BMS option includes comprehensive protection: overcharge, over-discharge, short circuit, overcurrent, and temperature monitoring. Your Samsung 21700 cells and battery pack are safeguarded regardless of which current rating you select.
BOOANT 72V 30Ah Triangle Battery Technical Specifications
BOOANT 72V 30Ah triangle lithium battery is a high-energy rechargeable power system delivering 2160 watt-hours using 120 genuine Samsung INR21700-50G cells in a 20S6P configuration. The pack integrates intelligent battery management and fast charging technology for high-performance e-bike, electric scooter and electric motorcycle applications.
Engineering Datasheet & System Breakdown
- Cell System: Samsung INR21700-50G, 5000mAh per cell, 20S6P configuration
- BMS System: JBD Smart Bluetooth BMS with real-time monitoring and active balancing
- Charging System: WATE 84V 5A smart fast charger with CC/CV and auto shutoff
| Battery Model | BOOANT 72V 30AH 2160Wh |
| Battery Type | Lithium-ion rechargeable battery |
| Production Process | 20S 6P (120 cells total) |
| Standard Voltage | 72V nominal |
| Battery Capacity | 30AH (2160Wh total energy) |
| Dimensions | 320×235×70 mm (12.6×9.3×2.8 in) |
| Weight | Approx. 9.5KG (20.9 lbs) |
| Cell Brand | Samsung SDI |
| Cell Model | INR21700-50G |
| Cell Type | Cylindrical lithium-ion rechargeable cell |
| Nominal Voltage | 3.63V nominal |
| Nominal Capacity | 5000mAh (4850mAh minimum) |
| Max Continuous Discharge | 9.8A continuous per cell · Pack-level: 30A/50A/60A BMS options |
| Charge Cut-off Voltage | 4.20V per cell (84V pack-level), CCCV 100mA cut-off |
| Discharge Cut-off Voltage | 2.5V per cell (50V pack-level cut-off) |
| Cell Cycle Life | ≥1000 cycles to 80% capacity retention |
| BMS Brand | JBD (Smart Bluetooth BMS) |
| Selection Criteria | Determined by discharge current requirement, battery dimensions, and application needs |
| Installation | Built into the battery pack with integrated wiring |
| Communication | Bluetooth 4.0 wireless connectivity |
| Compatible Apps | Xiaoxiang BMS / Smart BMS (iOS and Android) |
| Monitoring Functions | Real-time cell voltage, pack voltage, charge/discharge current, temperature, SOC |
| Remote Control | Remote charge/discharge on/off via mobile app |
| Protection Features | Overcharge, over-discharge, overcurrent, short circuit, temperature, active cell balancing |
| Optional Extensions | CAN BUS / RS485 / GPS (customizable upon request) |
| Charge Cut-off Voltage | 84V (full charge state, automatic charging stop) |
| Discharge Cut-off Voltage | 50V (automatic protection activation) |
| Rated Discharge Current | Calculated based on motor power and system requirements |
| Continuous Discharge Options | 30A / 50A / 60A (JBD BMS current rating selection) |
| Peak Discharge Current | 2–3× continuous rating for short-duration bursts |
| Total Energy | 2160Wh (72V × 30Ah) |
| Charger Brand | WATE 84V 5A Smart Fast Charger |
| Input Voltage | Universal 100V–240V AC 50/60Hz (worldwide compatibility) |
| Output Rating | Standard 84V DC 5A (420W rated power) |
| Charging Method | CC/CV — Constant Current then Constant Voltage with auto shutoff |
| Charging Time | ~80% in approximately 5 hours · Full charge in 6–7 hours |
| LED Indicator | Red (charging) / Green (full or standby) |
| Charger Protection | OVP, OCP, SCP, OTP, reverse polarity protection |
| Plug Options | Country-specific AC cords available (US/EU/UK/AU standards) |
| Charging Temperature (Battery) | 0 to 60°C · Recommended below 45°C |
| Discharging Temperature (Battery) | -20 to 60°C · Must maintain below 60°C |
| Charger Operating Temperature | 0 to 60°C · Recommended below 45°C |
| Optimal Operating Range | 15–25°C for maximum efficiency and minimal degradation |
Optimal: Maintain 40–60% SOC (3.7–3.8V per cell) for storage
Prohibited: Long-term storage at below 10% or at 100% SOC accelerates cell aging
15–25°C: Ideal environment (less than 2% annual capacity degradation)
-20~45°C: Permissible operating range (requires SOC management)
Above 50°C or below -30°C: Strictly prohibited (safety hazard risk)
Avoid compression or impact damage even with ABS protective casing
Keep away from metal objects and conductive materials to prevent short circuits










