52V 16.8Ah Molicel P42A eBike Battery

High-Current • Hand-Built in the USA • Engineered for Real Performance

Unlock a new level of power, consistency, and ride confidence with the Bicycle Motor Works 52V 16.8Ah Molicel P42A Battery—a premium, high-current pack built for riders who demand more from their mid-drive system.
Each battery is custom-built in Bethlehem, PA, using genuine Molicel P42A cells, precision assembly, and rugged protection to ensure long-lasting performance in any riding environment.

This is the battery riders choose when reliability, torque, and sustained output matter most.

Key Features

• High-Current 14S4P Pack with Molicel P42A Cells
  The industry-trusted high-power cell—proven for stability, low voltage sag, and efficient high-amp performance.

• 🔥 60A Continuous BMS
  Designed for high-load configurations including CYC X1, BBSHD Ludicrous, and BAC/ASI controllers.

• 🔋 Real-World Output You Can Feel
  Each P42A cell handles 35A continuous, meaning this pack confidently delivers 60+ amps all day without overheating.

• 🇺🇸 Built in the USA
  Safely sealed, protected, and assembled by hand using high-grade materials and quality-controlled construction.

Technical Specifications

• Voltage: 52V

• Capacity: 16.8Ah

• Energy: 873Wh

• Configuration: 14S4P

• Cells: Genuine Molicel P42A 21700 (4200mAh / 35A)

• BMS: 60A continuous

• Wiring: 10AWG silicone discharge leads

• Dimensions: Approx. 12.25” × 4.25” × 3”

• Encasement: Safely sealed, reinforced, and impact-resistant

Built for High-Performance Setups

This pack excels in demanding applications including:

• CYC X1 Pro & Stealth

• BBSHD Ludicrous

• BAC / ASI controllers

• Custom high-current mid-drive builds

Expect:

• Strong acceleration

• Minimal voltage sag

• Reliable high-amp delivery

• Improved thermal balance

• Consistent output under load

The P42A remains one of the most trusted high-discharge cells on the market for a reason—it performs.

Quality You Can Trust

Every Bicycle Motor Works battery is:

• Professionally spot-welded with solid nickel and copper

• Fully inspected for series balance prior to final assembly

• Sealed and protected with safety-focused construction

• Built in small batches for maximum quality control

Because your power source should be just as reliable as your ride.

Safety & Warnings

Lithium-ion batteries must be handled with care:

• Always charge in a fire-safe area.

• NEVER leave a charging battery unattended.

• Only use a proper lithium-ion charger—contact us if unsure.

• Do not open, modify, cut wiring, or change connectors.

• Never use a battery that has been dropped, damaged, or exposed to water.

• Improper handling can lead to fire, injury, or property damage.

If you have questions about safe operation, we’re here to support you.

Shipping Information

All Bicycle Motor Works battery packs are built to order.
Please allow 5–10 business days for assembly and shipment.
Tracking information will be provided as soon as your order ships.