72V 50Ah Electric Motorcycle Battery – Samsung 50S Cells, Smart BMS, Waterproof Metal Case
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- High-Current Power System for Real Motorcycles : Designed for sustained high-power output (3000W–9000W), ensuring stable performance under hard acceleration and long-distance riding.
- Genuine Samsung 50S 21700 Cells Inside : Built with high-drain Samsung 50S cells for low internal resistance, stable voltage delivery, and long cycle life under high load conditions.
- Smart BMS with Real-Time Protection Logic : Advanced BMS actively monitors voltage, temperature, and current to prevent over-discharge, overheating, and imbalance.
- Reinforced Metal Housing for Extreme Riding Conditions : Metal enclosure improves heat dissipation and protects internal cells from vibration, impact, and harsh outdoor conditions.
- Real Motorcycle Compatibility (Sur-Ron / Talaria / Custom 72V Builds) : Engineered for Sur-Ron, Talaria, and custom 72V electric motorcycle systems requiring high discharge stability and upgrade-level performance.
72V 50AH Smart Lithium Battery
Samsung 21700 cells · Smart Bluetooth BMS · Metal housing · 84V 10A fast charger
Engineered for electric motorcycles and electric bicycles, our 72V 50AH smart lithium battery delivers exceptional power density and intelligent control. Real-time monitoring, rugged metal protection, and flexible BMS options for motors up to 9kW.
Durable metal housing · High-grade sealing
Reinforced metal case with protection against dust, heavy rain, splashes, and temporary water immersion.
Bluetooth Smart BMS
Monitor voltage, temperature, cycle life and cell balance from your phone.
84V 10A fast charger
Included intelligent charger. Full charge in ~5 hours (50AH pack).
Genuine Samsung 21700 cells
200 original 50S cells · 3600Wh · 1000+ cycles (80% capacity retention).
Perfect for
Samsung INR21700-50S
Trusted by OEMs worldwide, the Samsung 50S delivers high energy density and consistent power output. With 25A continuous discharge and 1000+ cycles, it's engineered for electric motorcycles, e‑bikes, and demanding industrial applications where reliability matters most.
High power output
25A continuous discharge — handles high-torque motors without voltage sag. Ideal for 72V systems.
5000mAh high capacity
Industry-leading energy density for longer range per charge. Up to 18Wh per cell.
Samsung safety engineering
CID, PTC, and venting protection against overcurrent and thermal runaway. UL recognized component.
1000+ cycle life
Lower total cost of ownership — fewer replacements over time. 80% capacity retention after 1000 cycles.
JBD Smart Bluetooth BMS
JBD is a trusted name in battery management systems, known for reliable protection and seamless smartphone integration. Our 72V 50AH battery uses the JBD 20S smart BMS — giving you full visibility into cell health, real-time alerts, and remote monitoring via the free Xiaoxiang app (iOS/Android).
Bluetooth 5.0 Monitoring
Connect via Xiaoxiang app (iOS/Android). View voltage per cell, temperature, SOC, and cycle count in real time.
Active Cell Balancing
60mA balancing current ensures all 20 cells stay within ±0.01V, maximizing pack capacity and lifespan.
Multi-Layer Protection
Overvoltage, undervoltage, overcurrent, short circuit, and temperature cutoffs. MOSFET shutdown in milliseconds.
UART & Expandable
Built-in UART port supports CAN bus and external displays. OTA firmware updates.
JBD Bluetooth Smart BMS
Take full command of your 72V 50AH battery from your smartphone. The JBD Smart BMS connects via Bluetooth (up to 10m / 33ft) to the free Xiaoxiang APP — giving you real-time data and remote control of charge/discharge switches.
Free APP Download
Xiaoxiang Battery app available on iOS App Store and Google Play. Connect in seconds — no registration required.
Real-time monitoring
View voltage per cell, total current, temperature, state of charge (SOC), and cycle count — all live on your phone.
Remote charge/discharge switch
Turn charging or discharging on/off remotely from the app. Perfect for maintenance or winter storage.
10m Bluetooth range
Bluetooth 5.0 provides stable connection up to 10 meters (33 feet). Monitor from a safe distance.
📲 Download the free APP
Search "Xiaoxiang Battery" or scan QR code from your device
Built-in Battery Display Screen
Know exactly what's happening inside your battery at a glance. The built-in LCD digital display shows real-time voltage (0-100V DC), remaining capacity percentage, battery temperature, and an animated charging indicator — no phone or app needed.
Real-time voltage
Displays current battery voltage (0-100V DC range, ±0.1V accuracy). Quickly check if your battery needs charging before heading out.
Remaining capacity (%)
Clear percentage readout shows exactly how much energy is left. No more guessing based on voltage alone.
Battery temperature
Monitors internal cell temperature in real time. Helps prevent overheating and extends battery lifespan.
Animated charging indicator
When charging, the battery icon fills up dynamically — easy to see charging progress at a glance.
Choose the right BMS for your motor
Different motors have different power requirements. We offer four BMS options for our 72V 50AH battery — simply pick the one that matches your motor controller's continuous current rating for optimal performance and range.
72V 50AH Smart Lithium Battery
| 📊 Basic Specifications | |
|---|---|
| Nominal Voltage | 72V DC (20S configuration) |
| Capacity / Energy | 50Ah · 3600Wh |
| Dimensions (L×W×H) | 300 × 240 × 160 mm · 11.8" × 9.45" × 6.3" |
| Weight | 17.5 kg · 38.6 lbs |
| Cycle Life | 1000+ cycles at 80% depth of discharge (DOD) |
| 🔋 Cell Specifications — Samsung INR21700-50S | |
| Cell Type | Genuine Samsung INR21700-50S (200 cells) |
| Configuration | 20S10P (20 series, 10 parallel) |
| Cell Capacity | 5,000mAh per cell |
| Max Continuous Discharge (Cell) | 25A per cell |
| Nominal Cell Voltage | 3.6V |
| Energy Density | 265 Wh/kg |
| ⚙️ BMS (Battery Management System) — JBD Smart BMS | |
| BMS Type | JBD Smart BMS with Bluetooth 5.0 |
| Continuous Discharge Options | 60A / 80A / 100A / 150A (selectable) |
| Motor Power Matching | 60A → up to 3,500W · 80A → up to 4,500W 100A → up to 6,000W · 150A → up to 9,000W |
| Estimated Range | 60-80 km (60A) down to 30-50 km (150A) |
| Balancing Current | 60mA active balancing |
| Compatible App | Xiaoxiang Battery (iOS & Android) — free download |
| Remote Control | Charge ON/OFF · Discharge ON/OFF · 10m Bluetooth range |
| Protections | Overvoltage · Undervoltage · Overcurrent · Short circuit · Overtemperature · Reverse polarity |
| 🛡️ Housing & Protection | |
| Housing Material | Reinforced metal (steel + aluminum alloy) |
| Sealing & Protection | High-grade sealed enclosure — protected against dust ingress, heavy rain, splashes, and temporary water immersion |
| Impact Resistance | Reinforced construction withstands drops and impacts |
| Corrosion Protection | Powder-coated finish · Salt spray resistant |
| Thermal Management | Metal casing acts as heat sink for efficient cooling |
| ⚡ Charger — 84V 10A Smart Fast Charger | |
| Input Voltage | 100-240V AC (worldwide compatible) |
| Output Voltage | 84V DC |
| Output Current | 10A fixed |
| Charging Algorithm | CC/CV (Constant Current / Constant Voltage) |
| Charge Time | ~5 hours (20% to 100%) |
| Protections | Overheat · Short circuit · Reverse polarity · Overvoltage · Auto shut-off |
| Cooling Method | Intelligent temperature-controlled fan |
| Connector Type | IEC C14 Power Connector |
| 📟 Built-in Display Screen | |
| Display Type | LCD digital display |
| Displayed Parameters | Real-time voltage · Remaining capacity (%) · Battery temperature |
| Charging Indicator | Animated battery icon — fills up as charge increases |
| 🌡️ Environmental & Operating Conditions | |
| Discharge Temperature | -20°C to +65°C (-4°F to +149°F) |
| Charge Temperature | 0°C to +55°C (32°F to +131°F) |
| Storage Temperature | -20°C to +45°C (recommended 15-25°C) |
| Recommended Applications | Electric motorcycles · Electric bicycles · Golf carts · Marine trolling · Industrial equipment · Solar storage |










