48v 12ah Samsung 40T eBike Battery Bicycle Motor Works Premium 48V eBike Battery Collection Made in the USA | Genuine Certified Premium Cells | Designed for All-Weather, High-Performance Riding Experience premium American-made power with the Bicycle Motor Works 48V eBike Battery Collection. Each pack is hand-built in the U.S.A. using Grade-A, certified 21700 lithium-ion cells to deliver unmatched durability, long life, and reliable performance — no matter the weather or terrain. Perfect for replacement or upgrade, these batteries are engineered for maximum efficiency, stability, and safety, giving you the power to ride farther, faster, and smarter. Key Features - Premium 48V eBike Battery Collection — built for power, performance & reliability - Made in the U.S.A. with genuine certified premium 21700 cells - Replacement & upgrade options with customization consulting available - Longer lifespan and superior performance for all-weather riders - Solid nickel and copper connections – precision spot-welded for efficiency - Temperature-protected BMS prevents overcharging & cell imbalance - XT-90S (no-spark) discharge connector and XT-60 charging lead - Compact frame for improved heat dissipation and safety - Full customer support always available SHOP and COMPARE MODELS! Cell & Capacity Options Cell Type | Current Rating | Ideal Use Samsung 40T | Medium-High | Balanced power & efficiency Samsung 50S | Medium | Extended range & energy density Molicel P42A | High | Great for performance riders Molicel P45B | Ultra High | Superior heat control & stability Molicel P50B | Ultra High | Maximum output & long life Technical Specifications - Size: 11.5" x 3" x 3.125" - Configuration: 13s3p – 39 genuine, Grade-A 21700 cells - BMS: 50A continuous / 100A maximum (temperature protected) - Connectors: XT-90S (no spark) discharge / XT-60 charge lead - Cycle Life: 400–1000 full charge cycles - Frame Design: Compact build enhances heat dissipation - Testing: Each cell & series tested before assembly for quality & consistency This 48V pack is precision-built with a tight frame, ensuring optimal thermal management. Air gaps inside a pack can trap heat — but our efficient structure allows consistent cooling for safer, longer-lasting power. The BMS (Battery Management System) provides active protection against overcharge, over-discharge, and imbalance, making every ride smoother and safer. Safety & Handling Lithium-ion batteries require careful handling. Please read and follow all safety instructions before use. Only charge this battery with the appropriate lithium-ion charger. Do not: - Leave batteries charging unattended - Short-circuit, puncture, or expose to moisture - Open, alter, or modify the pack or its wiring - Continue using a damaged or wet pack If a battery becomes damaged, contact your local hazardous waste disposal office immediately. Always charge your battery in a fire-safe area (many riders use metal or enclosed containers for added protection). Failure to follow safety guidelines may result in fire, injury, or equipment damage. Why Choose Bicycle Motor Works - Over a decade of trusted U.S.-based eBike battery manufacturing - Expert customer service & consultation available - Committed to safety, sustainability, and American craftsmanship