72v 15ah Molicel P50B Series Li-ion eBike Battery
72V 15Ah Molicel P50B eBike Battery
Ultra-High Power • Built in the USA • The P50B Advantage for Serious Mid-Drive Performance
Experience the next generation of high-current eBike power with the Bicycle Motor Works 72V 15Ah Molicel P50B Battery. Engineered for riders who push their systems to the limit, this pack features the legendary Molicel P50B—one of the most powerful and efficient high-discharge cells available today.
Every battery is hand-built in Bethlehem, Pennsylvania, professionally sealed, reinforced, and tested for stability, heat performance, and long-term reliability. If you want instant torque, stronger acceleration, and stable high-amp output, this is your pack.
This is the ultimate upgrade for high-power mid-drives.
⚡ Key Performance Benefits
90A Continuous / 120A Burst BMS
Delivers the current your motor system demands—without sag, hesitation, or overheating.Molicel P50B (20s3p)
Each cell handles up to 60A continuous, giving the 3P configuration a massive 180A continuous potential.Made in the USA — Fully Protected & Sealed
Precision-welded nickel + copper busbars, rugged encasement, and full pack testing before shipment.Designed for High-Voltage, High-Amp Setups
Perfect for CYC, BBSHD (Ludicrous), ASI/BAC controllers, and custom high-current builds.
🔋 Technical Specifications
Voltage: 72V
Capacity: 15Ah
Energy: 1,080Wh
Cell Type: 60 Genuine Molicel P50B 21700 (5000mAh / 60A)
Configuration: 20s3p
BMS: 90A continuous • 120A burst • Temp protected
Discharge Connector: XT-90S anti-spark
Charge Connector: Heavy-duty XT-60
Weight: ~11.25 lb
Dimensions: 13.75" × 3.75" × 3.25"
Encasement: Thick rigid shell + double shrink + impact-resistant rubber layer
🚀 Built for Real Riding Power
Why Riders Choose 72V:
Sharper throttle response
Better acceleration
Higher top-end performance
Lower amp draw per watt = less stress on your system
More voltage = More efficiency + More power.
Why Riders Choose P50B:
Stable under extreme load
Very low internal resistance
Excellent heat management
Superior discharge curves
Outstanding longevity for a high-current cell
This pack is built to hold power—not just advertise it.
🔧 Premium Construction
This battery is engineered with:
Tight internal cell structure for increased heat dissipation
Solid nickel and copper busbars for low-resistance conduction
Precision spot welding on every cell
Full series-level testing before assembly
Temperature-protected BMS for optimal balancing
Nothing is left to chance—this is professional-grade construction.
🛑 Safety Notice
Lithium-ion batteries are powerful and must be handled responsibly.
Only charge with the correct lithium-ion charger
Never leave the battery charging unattended
Charge in a fire-safe location
Do not open, modify, cut wires, or change connectors
Never use a battery that is damaged or wet
Consult a professional if you are unsure about installation or compatibility
Misuse may cause fire, injury, or property damage.
We’re always here to help if you have questions.
📦 Shipping Information
All Bicycle Motor Works batteries are built to order.
Please allow 5–10 days for assembly and shipment.
Tracking will be emailed once the pack ships.
Contact us anytime for assistance.
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.
Reviews
Battery is great and better than described. However customer service can be better. I understand the work load is hectic, but response to emails takes days. No response to text messages. Would I buy from them again? Yes, I did get what I paid for. But again it's the CS that's lacking some. Best to call and hope they answer.
Excellent battery