⚡ 52V 18AH Molicel P45B High-Current eBike Battery – The Power House
Built in the USA by Bicycle Motor Works
🔋 Overview
Experience unmatched performance with the High-Current Molicel P45B Series, exclusively from Bicycle Motor Works.
Designed and hand-built in Bethlehem, Pennsylvania, this battery delivers exceptional current output, durability, and efficiency — engineered specifically for high-power eBike builds including CYC X1, BBSHD Ludicrous, and BAC/ASI motor setups.
The Molicel P45B 21700 cells are among the most advanced in the industry, known for their ultra-low internal resistance, stable thermal performance, and consistent discharge under extreme loads.
Compare Between: 13.5Ah (702Wh) or 18Ah (936Wh) capacities to power your next-level ride.
⚙️ Technical Specifications, Compare Models:
| Feature | 13.5Ah Model | 18Ah Model |
|---|---|---|
| Voltage / Configuration | 52V (14S3P) | 52V (14S4P) |
| Cell Type | Molicel P45B 21700 | Molicel P45B 21700 |
| Capacity | 13.5Ah | 18Ah |
| Energy (Wh) | 702Wh | 936Wh |
| Continuous Rating | 60A continuous / 120A burst | 60A continuous / 120A burst |
| Cell Rating | 35A continuous per cell | 35A continuous per cell |
| Wiring | 10 AWG silicone leads | 10 AWG silicone leads |
| Connectors | XT-90S (output) / XT-60 (charge) | XT-90S (output) / XT-60 (charge) |
| Dimensions (approx.) | 12.25” × 3.3” × 3” | 12.25” × 4.25” × 3” |
| Weight | ~7.5 lb | ~9 lb |
| BMS | 60A continuous, temp protected | 60A continuous, temp protected |
🚀 Key Features
✅ Built in the USA – Hand-assembled and tested in our Bethlehem, PA facility.
✅ Premium Molicel P45B Cells – High-drain, high-efficiency, and thermally stable.
✅ High Current Design – Delivers up to 60A continuous and 120A burst output.
✅ Thermal Efficiency – Compact internal structure dissipates heat effectively.
✅ Durable Construction – Double-shrink wrapped and reinforced rubberized casing.
✅ Plug-and-Play Compatibility – Ideal for CYC Motors, BBSHD Ludicrous, and BAC/ASI systems.
🧠 Engineered for Power & Longevity
The Molicel P45B chemistry is designed for high-performance electric drive systems.
Each cell can sustain 35 amps continuous discharge, making this battery ideal for e-bikes that demand consistent torque and long-range reliability.
Connections are made with solid nickel and copper busbars, spot-welded for low resistance and smooth current delivery.
Our tight internal frame design enhances heat dissipation — reducing thermal buildup and extending pack lifespan.
The integrated 60A BMS with temperature protection ensures safe operation under continuous heavy load and balances each cell for optimal cycle life.
⚠️ Safety & Handling
Lithium-ion batteries are powerful energy systems. Use responsibly and follow safety guidelines.
Always:
Charge with an approved lithium-ion charger.
Store and charge in a safe, ventilated area.
Inspect regularly for signs of damage or wear.
Never:
Modify connectors or wiring.
Use if damaged or wet.
Leave charging batteries unattended.
For assistance, contact Bicycle Motor Works or a certified e-bike technician before installation.
🚚 Shipping Information
All batteries are built to order.
Typical lead time: 5–10 business days.
Tracking provided once shipped.
Shipped safely from Bethlehem, Pennsylvania.
🏆 Why Riders Trust Bicycle Motor Works
🇺🇸 Made in the USA since 2014
🔋 Authentic Molicel P45B 21700 Cells
⚙️ High-Current, Overbuilt Designs
🧰 Engineered for Performance & Safety
💬 Family-Owned, Customer-Focused Service
Bicycle Motor Works – Premium American Power for Serious Riders.
52v 18ah Molicel P45B Series Lithium ion E-Bike Battery
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.
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.

