48v 15ah Molicel P50B Lithium-ion eBike Battery
48v 15ah Molicel P50B 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
Terms and Conditions
Our policies must be read, understood and agreed upon before making a purchase, which include eBike Battery 101, Privacy Policy, Store Policies and Terms of Use. All of these materials and access to our manuals are available on our website, under Resource Center.
Cell Information
Learn more about the advancements made in the P50B cell technology within this comprehensive article on the Molicel P50B.
Shipping Notice:
Due to the high demand, lead time for all eBike Batteries are 2-3 weeks. We take quality assurance very seriously, and we appreciate your patience.

