Product Description
72V 40Ah High-Power Lithium Battery | Samsung 21700-50S | 350A Discharge for E-Motorcycles & E-Bikes
The 72V 40Ah lithium battery pack is a high-performance energy solution designed for demanding electric vehicle applications. Built with premium Samsung 21700-50S cells, this battery delivers exceptional power density and reliability. With an impressive 350A maximum discharge current and a lightweight 14kg design, it is the ideal power source for electric motorcycles, high-performance e-bikes, electric scooters, and other high-power EVs. The battery features a full charge voltage of 84V and a cut-off voltage of 60V, providing a wide usable voltage range for sustained performance.
📊 Technical Specifications
| Parameter | Specification |
|---|---|
| Nominal Voltage | 72V |
| Full Charge Voltage | 84V |
| Cut-off Voltage | 60V |
| Typical Capacity | 40Ah |
| Cell Type | Samsung 21700-50S (high-power cells) |
| Max Discharge Current | 350A (peak / continuous high-power output) |
| Recommended Charge Current | 20A |
| Weight | 14 kg (lightweight for easy handling) |
| Dimensions (L × W × H) | 162 × 142 × 362 mm |
🔋 Key Features & Benefits
⚡ Ultra-High Discharge Current
350A maximum discharge current provides instantaneous power for high-torque electric motorcycles and demanding acceleration, ensuring superior riding performance.
🔋 Premium Samsung 21700-50S Cells
Powered by genuine Samsung 21700-50S cells – high energy density, low internal resistance, and excellent cycle life for long-term reliability.
⚖️ Lightweight & Compact Design
At just 14kg with compact dimensions (162×142×362mm), this battery significantly reduces vehicle weight compared to traditional lead‑acid alternatives, improving handling and range.
🔌 Wide Voltage Range
Operates from 60V to 84V, providing consistent power throughout the discharge cycle and compatibility with most 72V motor controllers and charging systems.
🛡️ Built-in BMS Protection
Integrated Battery Management System (BMS) provides over‑charge, over‑discharge, over‑current, short‑circuit, and temperature protection for safe and reliable operation.
🔧 Easy Integration
Standard dimensions and mounting configuration make it a drop‑in replacement or upgrade for existing 72V battery systems in electric motorcycles and e-bikes.
🛵 Primary Applications
🏍️ Electric Motorcycles
Ideal for high‑power electric motorcycles, off‑road dirt bikes, and street‑legal e‑motos requiring 350A peak current for rapid acceleration and hill climbing.
🚲 High-Performance E-Bikes
Perfect for high‑power electric bicycles (mid‑drive and hub motor systems) that demand sustained high current and long range.
🛴 Electric Scooters & Mopeds
Designed for heavy‑duty electric scooters, mopeds, and urban commuter vehicles requiring compact, high‑energy battery solutions.
⚡ Custom EV Projects
Excellent choice for DIY electric vehicle conversions, go‑karts, and other high‑power applications where 72V 40Ah configuration is required.
• 1 × 72V 40Ah lithium battery pack (Samsung 21700-50S cells)
• Built-in BMS with full protection features
• Anderson or custom connector (specify at order)
• Mounting bracket kit
• User manual with charging and safety guidelines
Charger sold separately (recommended 84V 20A lithium battery charger)
• Use a dedicated 84V lithium battery charger with 20A or adjustable current.
• Charge within 0°C to 45°C ambient temperature for optimal battery life.
• Avoid deep discharges below 60V to maximize cycle life.
• Store at 50%–70% SOC if not used for extended periods.
We offer OEM/ODM services – custom capacities (30Ah–100Ah), voltages (60V, 72V, 84V), connector types, and BMS configurations. Contact our engineering team for bulk pricing, technical support, and custom battery solutions for electric motorcycle and e-bike manufacturers.
Primary: 72V 40Ah lithium battery · electric motorcycle battery · e-bike battery · Samsung 21700-50S · 350A discharge battery · high power EV battery · 84V lithium pack · electric scooter battery · 72V 40Ah Li-ion battery
Performance: 350A max discharge · 84V full charge · 60V cut-off · 20A recommended charge · 14kg lightweight · 162×142×362mm dimensions · high discharge rate battery
Applications: electric motorcycle · high-power e-bike · electric scooter · electric moped · custom EV · off-road electric dirt bike · 72V vehicle conversion
