⚡ Bicycle Motor Works — Curated Performance Line Featuring EVE 40PL Cells
The Curated Performance Line represents the evolution of American eBike power — a union of precision engineering, premium materials, and cutting-edge lithium-ion technology.
Each pack in this series is powered by genuine EVE 40PL 21700 cells, designed for high-current delivery, low internal resistance, and exceptional thermal control.
With 4.0Ah per cell and up to 70A discharge capability, the EVE 40PL cell delivers smooth, consistent power — engineered to perform in extreme riding conditions. Every battery is hand-curated in Bethlehem, PA, built in small-batch production runs to ensure superior performance, safety, and reliability.
Curated in Bethlehem. Built for the world.
🔋 Available Configurations
52V Options
52v 10ah (14S 2P) Traditional Encasement— 6.5 × 4 × 3”
52v 15ah (14S 3P) Traditional Encasement— 12.25 × 3 × 3.1”
52v 20ah (14S 4P) Traditional Encasement— 12.25 × 4 × 3”
52v 25ah Shark (14S 5P) Shark Series: Lock & Mounted, Shell Encasement 14.5" × 3.8" × 6.2"
72V Options
72v 10ah (20S 2P) — Traditional Encasement 9.25 × 4 × 3”
72v 15ah (20S 3P) — Traditional Encasement 13.75 × 3 × 3.75”
72v 20ah Shark (20S 4P) Shark Series: Lock & Mounted, Shell Encasement 14.5" × 3.8" × 6.2"
⚙️ EVE 40PL Cell Highlights
4,000 mAh nominal capacity (typical), 21700 format
High current discharge: up to 70 A continuous capability for demanding loads
Ultra-low internal resistance (≤ 5 mΩ) → cooler operation and reduced voltage sag
Advanced tabless architecture improves heat distribution and efficiency
Energy density ≈ 223 Wh/kg for lightweight yet power-dense design
Broad temperature range: performs from –20 °C to +60 °C (ideal for winter riding)
Compact and light: ~ 67 g per cell • 21700 size (21.1 × 70.1 mm)
Industrial certifications: UN38.3 / UL1642 / IEC62133 compliant
💡 Why Choose the Curated Performance Line Featuring EVE 40PL
Exceptional power and efficiency — designed for high-performance motors and steep terrain
Cooler operation means longer life and consistent output even under heavy load
Built for four-season riding — stable current delivery in both heat and cold
Precision-built in the USA with pure copper busbars and high-discharge BMS
Available in traditional and Shark encasements with integrated lock and mount systems
🧠 Curated Power, Engineered Precision
Every Bicycle Motor Works battery is crafted with the same principle: combine premium cells with expert assembly for unrivaled performance and safety.
From urban commuters to trail-ready eMTBs, these packs deliver instant power, steady current, and confidence that lasts.
Curated Power. Crafted for Performance.
Only from Bicycle Motor Works — The Original American eBike Battery Manufacturer.
⚠️ Safety Guidelines
Please read our eBike Battery 101 Guide before use. Lithium-ion batteries must be handled with care.
Always:
Charge with the correct lithium-ion charger
Charge in a fireproof or metal container
Store in a cool, dry environment
Never:
Modify connectors or wiring
Charge unattended or near flammables
Use if damaged or wet
Improper handling can cause fire or injury — consult a professional if unsure.
🚚 Shipping Information
Built to order in Bethlehem, PA
Ships within 6 – 10 business days
Tracking provided upon shipment
U.S.-based support available
🏆 Why Choose Bicycle Motor Works
🇺🇸 Proudly Built in the USA Since 2014
👨🔧 Family-Owned & Operated
🔋 Certified 21700 Cells Only – No Rewraps or Recycled Cells
⚙️ Copper Busbar Engineering for Maximum Efficiency
🚴 Trusted by eBike Builders & Riders Nationwide
Bicycle Motor Works – Premium American-Made eBike Batteries.
Engineered for Power. Built to Last.