Celebrating 6 Years of Power: From Molicel P42A to the New Ampace JP50
- Jan 16
- 2 min read
At Bicycle Motor Works, innovation isn’t just a buzzword — it’s built into every battery pack we produce. Today, we’re taking a moment to reflect, say thank you, and celebrate an important milestone in our journey.
Matt Bzura, eBike battery engineer and business owner, would like to personally thank our incredible community for your continued trust, collaboration, and support. Your passion for high-performance electric mobility is what fuels our drive to engineer better, stronger, and more reliable battery solutions year after year.
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The Cell That Changed Everything: Molicel P42A
This year marks the 6-year anniversary of the groundbreaking Molicel P42A — the first power cell ever introduced in a true winter-ready eBike battery pack back in 2020.
When Bicycle Motor Works unveiled the P42A in our cold-weather optimized builds, it set a new industry benchmark:
✔ Exceptional high-current output
✔ Superior thermal stability
✔ Consistent performance in freezing temperatures
✔ Long cycle life under heavy loads
At the time, no other cell could match its real-world performance in harsh winter conditions. The P42A didn’t just raise the bar — it redefined what riders should expect from a premium eBike battery.
This legendary formula became the foundation for what we now call winter-ready battery technology — inspiring manufacturers and engineers across the industry to follow its lead.
Evolution of Power: Enter the Ampace JP50
Innovation never stops here. While many cells attempted to replicate the success of the P42A, only a few truly came close.
Now, we’re proud to introduce the next contender in high-performance cells:
🔋 Ampace JP50
The Ampace JP50 represents the next evolution in battery cell technology:
• High capacity
• Strong current handling
• Excellent thermal management
• Designed for demanding applications
Built to rival the P42A, the JP50 delivers exceptional power while maintaining reliability in real-world riding conditions — including cold climates where most batteries struggle.
It’s not just a new release - it’s the next chapter in winter-ready performance.
Built in the USA. Built to Perform.
For nearly a decade, Bicycle Motor Works has proudly manufactured certified premium eBike batteries right here in the United States.
Every pack is built with:
✔ Pure copper busbars
✔ Premium certified cells
✔ High-rated BMS systems
✔ Precision assembly
✔ Custom configurations for your ride
From eBikes to EV projects, drones, and robotics — our batteries power high-demand applications that require real performance, not marketing hype.
Thank You for Powering the Future With Us
None of this would be possible without YOU — our riders, builders, innovators, and partners.
Your feedback, trust, and collaboration continue to shape our engineering direction and push us to develop the most reliable batteries on the market.
Have Questions? Let’s Talk.
Whether you’re choosing between Molicel P42A and Ampace JP50, need a custom build, or want to learn more about winter-ready technology:
📩 Contact us anytimeWe love talking batteries — seriously.




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