52v 12ah Innovator Series Featuring EVE 40PL Cells - Premium eBike Battery Power by Bicycle Motor Works The Innovator Series 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-built in Bethlehem, PA, produced in small-batch runs to ensure superior performance, safety, and reliability. Engineered in Bethlehem. Built for the world. SHOP & COMPARE AVAILABLE MODELS: 52V Options • 52V 8Ah (14S 2P) Traditional Encasement — 6.5 × 4 × 3 in. • 52V 12Ah (14S 3P) Traditional Encasement — 12.25 × 3 × 3.1 in. • 52V 16Ah (14S 4P) Traditional Encasement — 12.25 × 4 × 3 in. • 52V 20Ah Shark (14S 5P) Shark Series: Lock & Mounted Shell Encasement — 14.5 × 3.8 × 6.2 in. 72V Options • 72V 8Ah (20S 2P) Traditional Encasement — 9.25 × 4 × 3 in. • 72V 12Ah (20S 3P) Traditional Encasement — 13.75 × 3 × 3.75 in. • 72V 16Ah Shark (20S 4P) Shark Series: Lock & Mounted Shell Encasement — 14.5 × 3.8 × 6.2 in. EVE 40PL Cell Highlights - 4,000 mAh nominal capacity (typical), 21700 format - High-current discharge up to 70 A continuous 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: –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 Innovator Series Featuring EVE 40PL - Exceptional power and efficiency for high-performance motors and steep terrain - Cooler operation extends cell life and ensures consistent output under 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 & mount systems Innovative 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. Innovative 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.