52v 16.8ah Molicel P42A Lithium ion E-Bike Battery
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.
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.
Reviews
Even though they were a bit backed up they sent my package through priority mail so it arrived sooner. Customer support is also very responsive. I received a battery from them and am excited to receive their photon gen 2.
The battery has been very good so far no complaints.
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