fiftra

Introducing Fiftra One

A short stop.
A useful backup.

A hyper charging battery pack, designed for less time waiting at an outlet.

Meet Fiftra One

In development. First physical prototype next.

Fiftra One's first enclosure design, with a transparent case showing three battery cells and the charging electronics.
Fiftra OneRevision 1 design

Refill the power bank.
Get back to your day.

Power banks help when your phone runs low. But when the power bank is empty too, you need an outlet and time to wait.

We're building Fiftra One around a faster refill through a single USB-C connection.

Our recharge target

15minutes

0%80%

A design target for recharging the power bank itself. Physical prototype testing will establish actual recharge time and thermal performance.

The approach

One connection.
A faster refill in mind.

The planned charging setup uses a 240W USB-C charger and cable, without a separate charging dock.

At its core
Three Molicel P50B cells
Built around the battery
Custom charging electronics and battery management
Part of the design
Compact thermal design, to be tested in the physical prototype

Fiftra One is still in development. Specifications and the final product design may change through testing.

From design to prototype

Real hardware.
One revision at a time.

We've completed the first PCB and enclosure designs. The next step is to build the physical prototype and measure what it does.

  1. Designed

    Revision 1

    Charging PCB, battery management PCB, and enclosure designs.

  2. Next

    Build and measure

    Build the first physical prototype. Measure recharge time and heat.

  3. Before launch

    Test and refine

    Use test results and user feedback to revise the product and complete safety reviews.

Early development supported by a 1517 Medici Grant.

Talk to Fiftra

Questions about
what we're building?

Product questions, engineering connections, or a conversation about Fiftra One.