72V 16AH Samsung 40T Locking Super Pack – The Ultimate High-Current, Long-Range eBike Battery Available in Your Choice of Premium Cells | Built in the USA | Extreme Power for High-Performance Rides Premium U.S.-Made Power Meet the Locking Super Pack Collection — our most powerful and durable 72V eBike battery series, hand-built in Bethlehem, Pennsylvania by Bicycle Motor Works, a family-owned American manufacturer since 2014. Unlike imported batteries, we manufacture every pack ourselves using certified, genuine 21700 cells and precision-engineered components for superior efficiency, heat control, and safety. This is not just another “big pack.” It’s a purpose-built, high-current powerhouse — made for serious riders, custom builders, and anyone who demands the best. Choose Your Premium Cell Configuration Each Locking Super Pack is available in your choice of premium, high-discharge 21700 cells. Whether you prioritize range or raw power, there’s a perfect configuration for your setup. 72V Super Shark – High-Current, Long-Range eBike Battery Options Cell Type / Model | Voltage / Capacity | Continuous Rating | Best For Samsung 50S | 72V 20Ah | 100A | Long-range endurance & consistent power Samsung 40T | 72V 16Ah | 140A | Peak power performance & quick bursts Molicel P42A | 72V 16.8Ah | 160A | High-current balance & sustained output Molicel P45B | 72V 18Ah | 180A | Ultra-high current & efficiency under heavy load Molicel P50B (NEW) | 72V 20Ah | 240A | Extreme power output, thermal stability & long-range rides Each pack is assembled using 80 genuine 21700 cells (20S4P) and custom 0.5mm copper busbars, designed to handle 300A+ continuous current — far exceeding what most systems will ever demand. Built for Maximum Efficiency Our precision-cut 0.5mm copper busbars are a hallmark of our engineering. They deliver the lowest resistance, minimal heat, and smoother power output under full load. Each connection is spot-welded using 0.2mm nickel/copper composite tabs to guarantee reliable power transfer and stability through every ride. Performance Highlights - 72V High Voltage System – The ultimate upgrade for torque and speed - Massive Capacity Options – 16Ah to 20Ah for long-range or power setups - 80A Smart BMS – Protects from overcharge, over-discharge, and imbalance - Integrated Locking System – Dual-key security for theft prevention - Heavy-Duty Mounting Cradle – Metal-reinforced with adjustable anchor points - Direct-Wire Design – 10AWG silicone wiring runs through the cradle for max efficiency - Advanced Heat Dissipation – Compact internal structure prevents heat trapping - No Weak Links – Built without fragile case connectors, switches, or charge indicators for higher reliability These packs are built to handle continuous output under high-current demand while staying cooler, safer, and more consistent than imported or rewrapped alternatives. Technical Specifications Feature | Specification Voltage | 72V (20S Configuration) Capacity | 16Ah–20Ah (varies by cell type) Energy | Up to 1,440Wh Cells | 21700 Premium Grade (Samsung or Molicel) BMS | 80A Continuous (300A Busbar Rated) Busbars | 0.5mm Solid Copper, Nickel-Copper Weld Tabs Case | Locking “Super Shark” Design Dimensions | 14.5" × 3.8" × 6.2" Weight | ~15 lbs Build Location | Bethlehem, Pennsylvania, USA Perfect For - High-powered CYC, BBSHD Ludicrous, and BAC ASI setups - Custom 72V conversions and performance eBikes - Riders demanding long-range capability and consistent high discharge - Builders who want a secure, locking, high-current pack that’s made to last Built for Safety & Longevity Every Bicycle Motor Works pack undergoes strict testing and assembly standards: - Each cell and series is individually tested for voltage and resistance - Spot-welded copper busbars for efficiency and safety - Tight internal structure for superior heat management - Temperature-protected 80A BMS for reliability under extreme conditions We don’t overpromise — we overbuild. That’s why every pack we ship is made to perform safely and efficiently for years. Safety Information Please read our eBike Battery 101 Guide before use. Lithium-ion batteries are powerful and must be handled with care. Always: - Charge with a compatible lithium-ion charger - Charge in a fire-safe or metal container - Store in a dry, cool environment - Consult a professional installer if unsure Never: - Modify connectors or wiring - Charge unattended or near flammable materials - Use a wet or damaged pack - Disassemble or hardwire directly to controllers Failure to follow proper precautions can result in damage, fire, or injury. Shipping & Lead Time - Built to order in the U.S. - Ships within 6–10 business days (in order received) - Tracking provided upon shipment - Customer support available for all orders