52v 13.5ah Molicel P45B Series Lithium ion E-Bike Battery
⚡ 52V 13.5AH 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.
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.