RESERVE portable energy system beside an electric vehicle

Portable EV reserve energy

A little energy.
A way forward.

A portable battery system designed to help an EV reach a working charger.

Pre-production system. Specifications subject to testing.
4–6 kWhUsable energy target
10–25 milesAdded range target
10–20 kWDC output target
Actual range depends on vehicle, conditions and energy delivered.

Engineered for real life

Modular by design.

A flexible, portable energy system built around swappable battery modules and intelligent control.

Exploded view of the RESERVE control unit and two battery modules
Pre-production architecture visualization.

Control unitDC fast charging, smart controls and thermal management.

Battery modulesLightweight, swappable modules for flexible capacity.

Integrated monitoringDesigned to work with a companion app for real-time insights.

Charging connector attached to an electric vehicle
Pre-production visualization.

What we are developing

A portable reserve for an electric future.

ConnectorJ3400 (NACS)-first target.

WeightUnder evaluation.

CompatibilityTesting planned across a range of EVs.

AvailabilityNot yet commercially available.

Pre-production engineering targets. Final specifications subject to validation.

Compatibility & charging

Plug in. Power up.

J3400 (NACS)-first connection target, with broader compatibility under evaluation.

J3400NACS-first targetCCS1Under evaluation
Charging connector attached to an electric vehicle
  • 10–20 kW DC output target
  • Under 10 minutes setup target
  • Designed for reserve energy between stops

Smart app. Real insights.

Illustrative RESERVE app battery dashboard
  • Check battery level
  • Estimate added range
  • Find nearby chargers
  • Review session history
  • Receive safety alerts
Illustrative app experience.

Ready for real life

Designed around the moments when a little more range could make the difference.

Road tripsRoad tripsBetween charging stops.
CampingCampingFor the return journey.
Remote routesRemote routesWhen charging is farther away.
City drivingCity drivingFor an unexpected detour.
Power outagesPower outagesPrepared for disruption.

Safety & engineering

Development priorities for the pre-production system.

Protective enclosureThermal managementBattery monitoringReal-life testing
How much range is RESERVE targeting?

An estimated 10–25 miles, depending on the vehicle, conditions and energy delivered.

Will RESERVE support every EV?

Compatibility testing is planned across a range of vehicles; final support has not been confirmed.

How long is setup expected to take?

The pre-production setup target is under 10 minutes.

Can I bring RESERVE on a road trip?

Portability and trunk storage are core design goals, subject to final validation.

Pre-production engineering targets. Final specifications subject to validation.
An electric vehicle following a mountain road at sunset

A brighter, more flexible tomorrow

Follow the road to a prototype.

More Miles Ahead.

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