72v 10ah Molicel P50B Series Li-ion eBike Battery
⚡ Premium 72V Electric Bike Battery – Built for High-Power Mid Drives
Made in the USA | Molicel P50B Cells | 80A Continuous Output | Compact Power Design
Take your ride to the next level with the Bicycle Motor Works Premium 72V eBike Battery, built exclusively with Molicel P50B 21700 cells — the ultra high-power cell trusted by performance riders and builders worldwide.
Designed for high current, mid-drive motors, this compact powerhouse delivers massive torque, smooth acceleration, and unmatched reliability — all handcrafted in our Bethlehem, Pennsylvania facility.
We don’t just trust our batteries are made right — we build them ourselves.
🔋 Key Features
Premium Molicel P50B 21700 Cells – Industry-leading high-current lithium-ion cells
72V 9Ah (648 Wh) – Compact, powerful design for mid-drive setups
80A Continuous / 120A Burst BMS – Temperature protected and precision balanced
20S2P Configuration – Built for efficiency, range, and consistent power output
Perfect for Backpacks or Frames – Compact fit (9” × 4” × 3”)
Tough, Rigid Construction – Double-shrink wrapped with a thick rubber outer layer
Beefy XT-90S Output Connector (no sparks) + Heavy-Duty XT-60 Charge Port
U.S.-Built, Tested, and Protected – Assembled with premium components
⚙️ Performance Highlights
72 Volts = High Voltage Advantage – More torque, speed, and efficiency
Molicel P50B (2P) Rated 120A Continuous – Massive headroom for powerful mid drives
Low Resistance Copper & Nickel Busbars – Maximum current flow, less heat
Smart BMS System – Monitors voltage, current, and temperature for safety and performance
High Thermal Efficiency Design – Tight frame prevents heat trapping and improves cooling
Plug-and-Play Compatible – Works seamlessly with 72V and high-performance 48V systems
Your controller will only draw the amps it needs, but this battery gives you power in reserve — ready for motor or controller upgrades down the road.
🧠 Built for Safety & Efficiency
Each cell and series is individually tested before assembly.
The integrated Battery Management System (BMS) ensures:
Overcharge / Over-discharge protection
Cell balancing
Thermal stability under heavy load
Solid copper and nickel busbars are precision spot-welded to each cell for maximum conductivity and reliability. This overbuilt design means smoother power delivery, cooler operation, and longer battery life.
⚠️ Safety Warning
Lithium-ion batteries are powerful energy systems and must be handled with care.
Always charge using the proper lithium-ion charger.
Do Not:
Short-circuit or puncture the pack
Modify connectors or wiring
Leave charging unattended
Use if wet or physically damaged
Charge in a fire-safe location (e.g., metal enclosure or fireproof box).
Improper use can result in injury, fire, or damage.
Read our eBike Battery 101 Guide and Terms & Conditions before purchase.
🚚 Shipping Information
All eBike batteries are built to order and shipped in the order received.
Typical lead time: 2–10 business days
Tracking provided once shipped
U.S.-based support always available
🏆 Why Choose Bicycle Motor Works
American-Made Since 2014 – Proudly built in Bethlehem, Pennsylvania
Premium Certified 21700 Cells – Genuine Molicel quality
Overbuilt for Performance & Safety – Tested, protected, and guaranteed
Expert Customer Support – Real riders, real experience
Bicycle Motor Works – Premium Power. Proven Performance. Built in the U.S.A.
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.

