72v 20ah Molicel P50B Triangle eBike Battery Pack
- Triangle Pilot eBike Battery Series
- Certified Molicel P50B tabless cells
- TJBD 100a continuous BMS
- 16.5 lbs, 300mm X 189mm
Featuring our premier Triangle Spectacular, hand-built in Bethlehem, Pennsylvania by Bicycle Motor Works, a family-owned American manufacturer since 2014.
Unlike imported batteries, we manufacture every pack ourselves using certified, genuine 21700 cells and precision-engineered components for superior efficiency, heat control, and safety.
This is not just another “big pack.” It’s a purpose-built, high-current powerhouse — made for serious riders, custom builders, and anyone who demands the best.
| Molicel P50B | 72V 20Ah | 240A | Extreme power output, thermal stability & long-range rides |
🔩 Built for Maximum Efficiency
Our precision-cut 0.5mm copper busbars are a hallmark of our engineering.
They deliver the lowest resistance, minimal heat, and smoother power output under full load.
Each connection is spot-welded using 0.2mm nickel/copper composite tabs to guarantee reliable power transfer and stability through every ride.
🧰 Technical Specifications
| Feature | Specification |
|---|---|
| Voltage | 72V (20S Configuration) |
| Capacity | 20Ah |
| Energy | Up to 1,440Wh |
| Cells | 21700 Tabless Molicel P50B |
| BMS | JBD 100 amp continuous |
| Busbars | 0.5mm Solid Copper, Nickel-Copper Weld Tabs |
| Case | Traditional Triangle |
| Dimensions | 300mm X 189mm |
| Weight | 16.5 lbs |
| Build Location | Bethlehem, Pennsylvania, USA |
Built for Safety & Longevity
Every Bicycle Motor Works pack undergoes strict testing and assembly standards:
Each cell and series is individually tested for voltage and resistance
Spot-welded copper busbars for efficiency and safety
Tight internal structure for superior heat management
Temperature-protected JBD 100 amp continuous BMS for reliability under extreme conditions
We don’t overpromise — we overbuild. That’s why every pack we ship is made to perform safely and efficiently for years.
⚠️ Safety Information
Please read our eBike Battery 101 Guide before use.
Lithium-ion batteries are powerful and must be handled with care.
Always:
Charge with a compatible lithium-ion charger
Charge in a fire-safe or metal container
Store in a dry, cool environment
Consult a professional installer if unsure
Never:
Modify connectors or wiring
Charge unattended or near flammable materials
Use a wet or damaged pack
Disassemble or hardwire directly to controllers
Failure to follow proper precautions can result in damage, fire, or injury.
🚚 Shipping & Lead Time
Built to order in the U.S.
Ships within 6–10 business days (in order received)
Tracking provided upon shipment
Customer support available for all orders
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.