36V 18Ah Battery Pack (10S4P) Molicel P45B for E-Foil Assist, robots, RC cars, drones, ebike, electric scooters etc

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Ultimate Custom 36V 18Ah Battery Pack (10S4P) - Fully Customisable 

Molicel P45B E-Foil Assist, Foil drive, Duotone, Waydoo & Multi-Application 

Power your high-demand electric builds with this ultra-premium, custom-built 36V 18Ah Lithium-Ion battery pack. Engineered primarily for high-performance e-foil assist systems, this lightweight powerhouse features genuine Molicel INR21700 P45B cells and is proudly built and rigorously tested in the UK by ALTechnologies.
Known for industry-leading discharge rates and thermal efficiency, these cells deliver the raw torque you need to pop up onto the foil effortlessly. Hand-assembled with exceptional craftsmanship using a rock-solid 10S4P configuration, it is built to handle demanding high-drain environments.
⚡ Technical Specifications
  • Battery Chemistry: Lithium-Ion (Li-ion)
  • Cell Model: Genuine Molicel INR21700 P45B (Premium Ultra-High Power Cells)
  • Cell Configuration: 10S4P (10 Series, 4 Parallel)
  • Nominal Voltage: 36V
  • Voltage Range: 30V (Low Cut-off) to 42V (Maximum Charge)
  • Nominal Capacity: 18Ah
  • Total Energy: 648Wh
  • Max Continuous Discharge Current: Up to 140A–180A (Cell-rated up to 45A per cell, BMS/fuse dependent)
  • Max Charging Current: max 5A
  • Weight: 3.647 kg (Optimized for weight-sensitive setups)
  • Builder: Built & Tested in the UK by ALTechnologies
🌍 Versatile Multi-Application Compatibility
While optimized for marine e-foiling, this high-drain 36V architecture is perfectly suited for a wide range of premium DIY electric vehicles, heavy-duty robotics, and custom electronics:
  • High-Power Ebikes: Upgrade your 36V commuter or custom electric mountain bike for virtually zero voltage sag on steep hill climbs.
  • Electric Scooters & Skateboards (E-Skates): Perfect for high-torque electric scooters and custom off-road mountainboards requiring high continuous current.
  • Large-Scale RC Cars & Trucks: Powers heavy-scale (e.g., 1/5 scale) RC vehicles requiring massive power density and fast acceleration.
  • Heavy-Lift Drones & UAVs: Ideal for commercial-grade tethered drones, heavy-lift agricultural quadcopters, or custom autonomous aerial platforms.
  • Robotics & UGVs: Excellent primary power source for unmanned ground vehicles, heavy-duty industrial robotics, and automation projects.
  • Portable Power Stations: Use as a high-capacity 36V power bank for field equipment, remote DIY solar generators, or testing bench setups.
🌟 Why Choose the ALTechnologies Molicel P45B Pack?
  • Built & Tested by ALTechnologies: Every single pack undergoes strict quality control and load testing right here in the UK. Built with premium spot-welds, robust insulation, and a heavy-duty shrink-wrap finish for maximum reliability.
  • Unmatched Punch & Torque: Built with Molicel P45B cells that boast an incredible 45A maximum continuous discharge rating per cell. Experience instantaneous throttle response when cutting through high loads.
  • Massive 648Wh Capacity: Packed into a compact, highly dense footprint, giving you maximum runtime without adding unnecessary bulk to your project.
  • Superior Thermal Efficiency: The P45B architecture features lower internal resistance compared to standard 21700 cells. The pack runs noticeably cooler under high loads, extending its overall lifespan.
  • Heavy-Duty Inline Fuse: Features an integrated, rugged inline fuse block on the main power lines to safeguard your electronics against over-current faults.
  • Dual Connector Interface: Pre-wired with a high-current blue EC5/XT90-style main discharge connector and a yellow XT60 connector for versatile charging and auxiliary power options.

Contact us for any variations of this battery or similar battery packs. 

📦 What’s In The Box?
  • 1x Custom ALTechnologies 36V 18Ah 10S4P Molicel P45B Li-ion Battery Pack with integrated fuse housing and lead connectors.
  • Optional you can select with Lithium charger. 
⚠️ Safety & Usage Notice
Lithium-ion batteries must be handled with care. Always use a high-quality, dedicated 36V Li-ion smart charger capped at a maximum of 5A. Never leave batteries charging unattended, and store your pack in a cool, dry, fire-safe location when not in use. Due to its use in marine/e-foil applications, ensure the battery is housed inside a properly sealed, watertight enclosure during operation. Ensure your device's controller and wiring harness match the voltage range (30V–42V) before connection.

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We want you to be 100% satisfied with your purchase. Items can be returned or exchanged within 30 days of delivery.