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BOOANT 36V 30Ah Ebike Battery with Samsung 21700 50G Cells & Smart Bluetooth BMS
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- [Premium Samsung Cells] — 30Ah High Capacity : Built with original Samsung 21700-50G cells. 30Ah (1080Wh) provides massive range, lasting up to 2x longer than standard batteries. No more range anxiety.
- [Smart App Control] — Real-time Bluetooth Monitoring : Integrated Smart BMS with Bluetooth. Monitor voltage, temperature, and SOC directly on your smartphone. Stay informed and in control of your battery’s health.
- [Rugged Aluminum Shell] — Ultimate Safety & Durability : Encased in a premium aluminum alloy housing. Much safer and tougher than PVC wrap. Offers superior impact resistance and heat dissipation for off-road riding.
- [1080W High Output] — 10AWG Heavy-Duty Wiring : Supports 250W - 1000W motors. Equipped with 10AWG wires and XT90 connectors for high-current stability. Perfect for steep climbs and heavy-duty DIY kits.
- [6-Hour Fast Charging] — 5A Charger Included : Comes with a 5A high-current charger (instead of standard 2A). Get back to full power in just 6 hours. Includes a waterproof bag for extra protection.
BMS Discharge Current (Select Motor Power)
30A | For 250W-800W Motors
40A | For 800W-1200W Motors
50A | For 1000W-1500W Motors
Discharge Plug
QS8 plug
Anderson 30A
Anderson 50A
XT60F/M
XT90F/M
BMS Discharge Current (Select Motor Power)
Discharge Plug
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Technical Support
Battery & Installation Help
2-Year Warranty
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Power You Can Rely On — Every Ride, Every Day
BOOANT
Genuine Samsung 21700 50G Cells
The core of your 36V 30Ah battery · 60 A-grade cells · 1080Wh total energy
🚲 eBike Conversion 📦 Cargo Bike 🛣️ Long-Range Commuting 🔋 High-Drain Applications
5000
mAh Per Cell
60
Genuine Cells
1080
Watt-Hours
800+
Cycles Rated
⚡ Why Samsung 21700 50G Over Standard 18650 Cells
Standard 18650
- Typical 2500–3500mAh per cell
- Lower energy density
- More cells needed for same capacity
- Higher internal resistance
VS
Samsung 21700 50G
- 5000mAh per cell — up to 40% more energy
- Fewer cells, lighter overall pack
- Lower internal resistance, less heat
- Proven Samsung SDI chemistry
🏆 What This Means for Your Ride
Ride Farther Without Worry
1080Wh total energy means extended range on every charge. Less range anxiety, more freedom.
Stays Cool Under Heavy Load
Samsung's low internal resistance design reduces heat buildup during steep climbs and high-drain situations.
Years of Daily Riding
Rated for 800+ charge cycles. That's years of dependable performance before noticeable capacity fade.
Authentic Samsung, Not a Compromise
Every cell is A-grade from Samsung SDI. No rewraps, no factory seconds — just genuine quality you can trust.
🔒 Quality & Reliability You Can Count On
Samsung SDI Authentic
Sourced from authorized distributors. Every cell traceable to Samsung SDI manufacturing.
Pre-Shipment Testing
Each battery pack undergoes voltage, capacity, and safety verification before leaving our facility.
800+ Cycle Rating
Designed to retain over 70% capacity after 800 full charge cycles under normal use conditions.
Consistent Performance
Matched cells in 10S6P configuration ensure balanced discharge and long pack lifespan.
BOOANT 36V 30Ah battery powered by 60 genuine Samsung INR21700-50G cells. 5000mAh per cell, 1080Wh total energy. A-grade authentic cells from Samsung SDI. 800+ cycle life rated. Designed for eBike conversion, cargo bikes, and long-range commuting. Designed and assembled by BOOANT.
SAMSUNG SDI
INR21700-50G Complete Specs & Data
Discharge curves · cycle life · internal resistance · 21700 vs 18650 comparison
5000
mAh Nominal
≤25
mΩ DC Internal Resistance
9.8
Amps Max Continuous
800
Cycles to 70%
21700 vs 18650 — Why the 50G Matters
Standard 18650
- 2500–3500mAh typical capacity
- ~550–620 Wh/L energy density
- More cells needed for same pack capacity
- Higher internal resistance, more heat
- Shorter range per charge
VS
Samsung 21700 50G
- 5000mAh — up to 40% more energy
- ~710 Wh/L energy density
- Fewer cells, lighter overall pack weight
- ≤25mΩ DC internal resistance
- Extended range on every charge
Discharge Curve & Rate Performance
| Discharge Rate | Typical Capacity | Mid-Point Voltage |
|---|---|---|
| 0.2C (1.0A) | 5000mAh | 3.55V |
| 0.5C (2.5A) | 4950mAh | 3.48V |
| 1.0C (5.0A) | 4850mAh | 3.40V |
| 2.0C (9.8A) | 4700mAh | 3.28V |
Tested at 25°C. 4.2V to 2.5V cut-off. Shallow voltage slope indicates low IR and stable output.
Discharge Curve: Voltage vs Capacity
The 50G maintains stable voltage across most of its discharge, delivering consistent power until near depletion.
Cycle Life & Capacity Retention
≥90%
Capacity after 300 cycles
≥70%
Capacity after 800 cycles
0.5C charge / 1.0C discharge, 25°C. Samsung SDI validation data.
Internal Construction
Nickel-Rich NCA Cathode
High nickel content maximizes energy density. Samsung's proprietary coating process ensures thermal stability at high voltage.
Optimized Electrolyte
Special formulation reduces side reactions, directly contributing to the 800-cycle lifespan and low capacity fade.
Laser-Welded Current Path
Precision welding of electrode tabs minimizes contact resistance. Fewer mechanical joints means less heat and more consistent power.
Integrated Safety Mechanisms
PTC Thermistor
Self-resetting current limiter that activates at elevated temperatures.
CID
Current Interrupt Device permanently disconnects the circuit if internal pressure exceeds safe limits.
Safety Vent
Precision-scored top cap vents gas at a controlled pressure without casing rupture.
Ceramic-Coated Separator
Maintains dimensional stability at high temperatures to prevent internal shorts.
Battery Packs Built with Samsung 50G Cells
The INR21700-50G is the core cell used in high-capacity eBike battery packs, long-range energy storage systems, and custom lithium builds. Explore complete packs powered by the same Samsung 50G technology.
36V Battery Packs 48V Battery Packs 52V Battery Packs
Samsung INR21700-50G complete specifications: 5000mAh nominal capacity, ≤25mΩ DC internal resistance, 9.8A max continuous discharge, 800 cycles to 70% capacity. Nickel-rich NCA cathode with PTC, CID, safety vent, and ceramic-coated separator. Samsung SDI origin. Designed and assembled by BOOANT.
Because what you can't see can still damage your battery
JBD SMART BMS
Bluetooth Battery Management System
6-layer protection · real-time monitoring · remote control — guarding every cell, on every ride
6-Layer Protection
Comprehensive Safety
Bluetooth APP
Monitor & Control
Real-Time Data
Voltage · Current · Temp
Cell Balancing
Maximizes Lifespan
What's at stake without proper battery management
Overcharging
Cell swelling, leakage, thermal runaway risk
Deep discharge
Permanent capacity loss, cells never recover
Short circuit
Instant high current, fire hazard in seconds
Extreme temperatures
Accelerated aging, internal damage, failure
How the JBD BMS Prevents These Risks — 6 Layers of Defense
Overcharge Protection
Prevents cell damage from excessive voltage
Over-Discharge Protection
Stops drain before permanent capacity loss
Short Circuit Protection
Disconnects before current reaches danger levels
Overcurrent Protection
Limits current to prevent wiring and cell stress
Temperature Protection
Cuts off at high heat and freezing cold extremes
Cell Balancing
Equalizes all cells to maximize pack lifespan
Why JBD — Not All BMS Are Built the Same
Proven Accuracy
Precise voltage and current sensing trusted by pack builders worldwide
Stable Bluetooth
Reliable connection with mature APP support and regular firmware updates
Consistent Quality
Every unit calibrated and tested — not a generic board with unknown tolerances
📱 Bluetooth APP — Your Battery, in Your Pocket
Pre-ride status check
Remaining capacity, voltage, and cell balance at a glance.
Remote power control
Enable or disable charge/discharge from your phone for storage safety.
Instant alerts
Warnings for abnormal voltage, temperature spikes, or protection triggers.
Battery health history
Cycle counts and performance trends tracked over the battery's lifetime.
Integrated Across the Full Voltage Range
Every BOOANT battery pack — from 36V commuter builds to 72V high-power systems — is equipped with the same JBD Smart BMS, delivering consistent 6-layer protection and Bluetooth control regardless of voltage.
36V Packs 48V Packs 52V Packs 60V Packs 72V Packs
JBD Smart Battery Management System with Bluetooth connectivity. 6-layer protection against overcharge, over-discharge, short circuit, overcurrent, and temperature extremes. Real-time APP monitoring and remote charge/discharge control. Integrated across all BOOANT battery packs. Designed and assembled by BOOANT.
Know your battery at a glance — no app, no phone, no waiting
No guesswork, no unexpected power loss — just clear, immediate battery status whenever you need it.
SUPNOVA DISPLAY
Instant Battery Awareness
Voltage · temperature · remaining capacity · charging progress — all visible directly on the battery housing
Voltage
Real-time pack voltage
Temperature
Internal battery temp
Capacity %
Remaining charge level
Charge Bar
Animated progress indicator
Three Moments When the Display Matters Most
Before you ride
One glance tells you if the battery is fully charged and ready — no guessing, no surprises mid-trip.
While charging
The animated progress bar fills as the battery charges. Walk by, check the bar, know exactly where it's at.
When something feels off
Unusual voltage or temperature reading? The display gives you an instant clue before it becomes a problem.
The SUPNOVA display is built into the battery housing — not an external add-on. One glance gives you voltage, temperature, capacity, and charging status.
Paired with the JBD Smart BMS, you get a dual-layer monitoring system: instant visual checks on the battery itself, and detailed cell-level diagnostics through the mobile app when you need them.
Instant Display + Detailed APP — They Work Together
SUPNOVA Display — Instant
- One glance, no phone needed
- Voltage, temp, capacity, charging bar
- Always on, always visible
- Perfect for daily pre-ride checks
JBD BMS APP — In-Depth
- Individual cell voltages and balance
- Historical data and cycle counts
- Remote charge/discharge control
- Deep diagnostics when you need them
Integrated SUPNOVA battery display shows real-time voltage, internal temperature, remaining capacity percentage, and animated charging progress — all visible directly on the battery housing without opening an app. Dual-layer monitoring with JBD Smart BMS APP for detailed diagnostics. Designed and assembled by BOOANT.
Fast, safe charging that knows when to stop
WATE
42V 5A Smart Charger
CC/CV charging profile · automatic shut-off · LED status indicator — optimized for 36V lithium packs
42V / 5A
Output Voltage & Current
CC/CV Profile
Optimized for 10S Lithium
4 Built-In Protections
Overcharge · Short · Reverse · Overheat
The 5A output is carefully selected to balance fast charging speed with long-term cell health — avoiding excessive heat while maintaining efficient charge times for high-capacity 30Ah packs.
How the Smart Charging Process Works
Constant Current Phase
Delivers steady 5A current to rapidly charge the battery up to approximately 80% capacity. The LED glows red — charging is in progress.
Constant Voltage Phase
Switches to constant 42V as the battery nears full. Current tapers down gradually while the BMS balances individual cells.
Automatic Shut-Off
Charging terminates when current drops below the cutoff threshold. The LED turns green — battery is full and ready, no risk of overcharge.
Built-In Protections That Guard Every Charge
Overcharge Protection
Auto-stops at full voltage
Short Circuit Protection
Cuts off output instantly
Reverse Polarity Protection
No damage if connected wrong
Overheat Protection
Shuts down if temperature spikes
The WATE 42V 5A charger is included as the standard charger with the 36V 30Ah lithium battery pack. It is specifically calibrated for 10S lithium configurations — ensuring safe, efficient charging with optimal current flow and voltage control.
Together with the JBD Smart BMS inside the battery, the charger forms a complete charging safety system: the BMS monitors cell-level conditions during charging, while the charger handles the external power delivery and automatic termination.
WATE 42V 5A smart charger designed for 36V lithium battery packs. Automatic charge termination, CC/CV charging profile, and built-in protection against overcharge, short circuit, reverse polarity, and overheating. Optimized for 10S lithium configurations. Designed and assembled by BOOANT.
TECHNICAL SPECIFICATIONS
36V 30Ah 1080Wh eBike Battery
Full specifications & performance guide — Samsung 50G cells · JBD Smart BMS · 10S6P configuration
Built for 500W–1500W eBike systems, this 36V 30Ah (1080Wh) battery delivers extended range, stable output, and smart monitoring via Bluetooth BMS — ideal for commuter eBikes, cargo bikes, and DIY conversion kits.
🚲 Commuter eBikes 📦 Cargo Bikes 🔧 DIY Conversion Kits ⚡ 500W – 1500W Motors
Recommended Motor Power by BMS Rating
30A BMS → Up to 750W
Best for commuter eBikes on flat terrain. Maximizes range with moderate power output.
40A BMS → Up to 1000W
Recommended for most riders. Strong hill climbing and cargo capability with balanced range.
50A BMS → High Power
For performance applications and steep terrain. Maximum torque output from your motor system.
Basic Parameters
| Battery Model | 36V 30AH 1080Wh |
|---|---|
| Battery Type | Lithium-ion rechargeable battery |
| Configuration | 10S 6P (60 cells total) |
| Nominal Voltage | 36V |
| Full Charge Voltage | 42V |
| Battery Capacity | 30AH |
| Dimensions | 300mm × 190mm × 90mm (11.8in × 7.5in × 3.5in) |
| Weight | Approximately 7kg (15.4lbs) |
Cell Parameters
| Cell Brand | SAMSUNG |
|---|---|
| Cell Model | INR21700-50G |
| Cell Type | Lithium-ion rechargeable battery |
| Nominal Voltage | 3.6V – 3.7V |
| Nominal Capacity | 5000mAh |
| Max Continuous Discharge | 9.8A (~2C continuous) / 5A (~1C recommended for longevity) |
| Charge Cut-off Voltage | 4.20V, CCCV 100mA cut-off (5A charge) |
| Discharge Cut-off Voltage | 2.5V cut-off |
Smart BMS Protection & Monitoring
| BMS Brand | JBD / ANT / JK |
|---|---|
| Protection Layers | Overcharge · Over-discharge · Short circuit · Overcurrent · Temperature cutoff · Cell balancing |
| Installation | Built into the battery pack |
| Communication | Bluetooth |
| Mobile App | iOS and Android — real-time monitoring, remote control |
| Optional Extensions | CAN BUS / RS485 / GPS (customizable for advanced systems) |
Battery Pack Performance
| Charge Cut-off Voltage | 42V (full charge state, charging stops) |
|---|---|
| Discharge Cut-off Voltage | 25V (automatic protection activates, discharge stops) |
| Rated Discharge Current | Calculated based on motor power |
| Continuous Discharge Current | Determined by BMS current rating (30A / 40A / 50A options) |
| Peak Discharge Current | Determined by motor power and BMS peak current capacity |
Charger Specifications
| Input Voltage | Universal 100V – 240V (worldwide compatibility) |
|---|---|
| Output Current | Standard 42V 5A |
| Charging Method | Constant Current & Constant Voltage (CC & CV) |
| Charging Time | 80% capacity in ~5 hours / full charge in 6 – 7 hours |
| Plug Options | Country-specific cords available (US / EU / UK / AU standards) |
Temperature Specifications
| Charging (Battery) | 0 to 60℃ (recommended < 45℃ during charging) |
|---|---|
| Discharging (Battery) | -20 to 60℃ (must maintain < 60℃ during discharge) |
| Charger Operating | 0 to 60℃ (recommended < 45℃ during charging) |
Important Notes
State of Charge (SOC)
| Optimal Storage | Maintain 40 – 60% (3.7 – 3.8V per cell) |
|---|---|
| Prohibited | Long-term storage at < 10% or 100% SOC (accelerates aging) |
Temperature Control
| Ideal Environment | 15 – 25℃ (< 2% annual degradation) |
|---|---|
| Permissible Range | -20 – 45℃ (requires SOC control) |
| Strictly Prohibited | 50℃ or < -30℃ (hazard risk) |
Physical Protection
| Avoid | Compression or impact (even with protective casing) |
|---|---|
| Keep Away | Metal objects to prevent short circuits |
Storage Recommendation: For long-term storage (longer than 1 month), perform periodic brief charge/discharge cycles to maintain lithium-ion activity and ensure normal energy output. A shallow cycle from 30% to 80% every 3 months is recommended.
Complete specifications and performance data for the 36V 30Ah 1080Wh eBike lithium battery. Samsung INR21700-50G cells, JBD Smart BMS with Bluetooth, 10S6P configuration. Ideal for 500W–1500W motor systems, commuter eBikes, cargo bikes and DIY conversion kits. Designed and assembled by BOOANT.
