⚡ USA-Made 52V eBike Battery – High Current 14S4P Pack
Molicel P50B 21700 Cells | 20Ah 1040Wh | 15Ah 780Wh | Built for Extreme Performance
 
Experience premium American engineering with the Bicycle Motor Works High Current 14S4P eBike Battery Pack, built by hand in Bethlehem, Pennsylvania.
This pack delivers massive continuous current, exceptional thermal stability, and high-efficiency performance for demanding riders and high-power mid-drive systems.
Designed with Molicel P50B 21700 cells, each rated for 60A continuous output, this battery is the ultimate upgrade for CYC Motors, BBSHD Ludicrous builds, and high-current ASI BAC setups.
 
🔋 Key Specifications
Voltage: 52V (14S4P configuration)
Capacity Choice: 20Ah (1040Wh) or 15Ah (780Wh)
Cell Type: Molicel P50B 21700 – 60A continuous rated cells
BMS: 60A continuous / 100A+ capable
Dimensions: Approx. 12.25” × 4.25” × 3” /15ah Size: 12.25” x 3.3” x 3”
Output Wiring: 10AWG silicone leads for high current draw
Weight: Compact and balanced for performance builds
Build: Safely sealed, protected, and tested before shipment
 
⚙️ Performance Highlights
High-Current Power Output – Delivers over 100A continuous without overheating
Perfect for Mid-Drive Motors – Ideal for CYC X1, BBSHD Ludicrous, BAC & ASI setups
Superior Heat Dissipation – Tight-frame design minimizes trapped heat
Long-Lasting Power – Over 700+ charge cycles with minimal impedance growth
Low Voltage Sag – Copper and nickel busbars ensure smooth, stable output
Custom U.S. Manufacturing – Built in-house for quality control and reliability
This pack is engineered to run cooler, last longer, and perform harder — giving you consistent torque and faster throttle response even during extended rides or climbs.
 
🧠 Engineered for Safety and Longevity
Each cell and series is individually tested before assembly.
The advanced Battery Management System (BMS) provides:
Overcharge & over-discharge protection
Active cell balancing for long-term health
Temperature protection for consistent operation
Solid copper/nickel busbars ensure maximum conductivity and minimal energy loss.
Every pack is sealed for protection against vibration, dust, and debris — ready for real-world riding.
 
⚠️ Safety Guidelines
Lithium-ion batteries are powerful energy systems and must be used responsibly.
Always use an approved lithium-ion charger and follow all safety instructions.
Do Not:
Short-circuit, puncture, or expose to water
Modify connectors or wiring
Leave unattended while charging
Continue use if damaged or wet
Charge in a fire-safe area (metal or fireproof enclosure recommended).
Improper use may result in fire or injury.
Read our eBike Battery 101 Guide and Terms & Conditions before purchase.
 
 
🚚 Shipping Information
All Bicycle Motor Works eBike batteries are built to order and shipped in sequence.
Standard lead time: 5–10 business days
Tracking information sent upon shipment
U.S.-based support available for product assistance
 
🏆 Why Choose Bicycle Motor Works
Proudly Made in the U.S.A. since 2014
Premium Certified Molicel 21700 Cells – no reused or rewrapped cells
Overbuilt for Safety & Performance – copper busbars, silicone leads, smart BMS
Exceptional Customer Service – from a family-owned American company
 
Power your ride with proven, American-built performance.
Bicycle Motor Works – Premium eBike Batteries. Built Right. Built Here.