Road tripsBetween charging stops.
Portable EV reserve energy
A little energy.
A way forward.
A portable battery system that extends your EV's range and gets you to a working charger.
4–6 kWhUsable energy
10–25 milesAdded range
10–20 kWDC output
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.
Control unitDC fast charging, smart controls and thermal management.
Battery modulesLightweight, swappable modules for flexible capacity.
Integrated monitoringWorks with the companion app for real-time insights.
Built for the road
A portable reserve for an electric future.
ConnectorJ3400 (NACS) interface, with CCS1 support.
HandlingModular weight, easy to lift and stow.
CompatibilityA curated set of North American EVs, expanding over time.
AccessJoin the waitlist for early access.
Compatibility & Charging
Works with J3400 (NACS) out of the box, with CCS1 support.
NACS (Tesla)Included
CCS1Supported
CCS1Supported
- 10–20 kW DC output
- Under 10 minutes to set up
- Reserve energy between stops
Smart App. Real Insights.
- Check battery level
- Estimate added range
- Find nearby chargers
- Review session history
- Receive safety alerts
Ready for Real Life
From everyday driving to off-grid adventures, RESERVE helps you go further.
Road tripsBetween charging stops.
CampingFor the return journey.
Remote routesWhen charging is farther away.
City drivingFor an unexpected detour.
Power outagesPrepared for disruption.Safety & Engineering
Every engineering decision starts with one question: what happens if something goes wrong?
Protective enclosureThermal managementBattery monitoringReal-life testing
FAQs
View all FAQsHow much range does RESERVE add?
Between 10 and 25 miles, depending on the vehicle, conditions and energy delivered.
Does RESERVE support every EV?
RESERVE supports a curated set of vehicles, with compatibility expanding over time.
How long does setup take?
Under 10 minutes from trunk to connected.
Can I bring RESERVE on a road trip?
Yes — portability and trunk storage are core to the design.
Specifications
The numbers.
| Attribute | Specification | Notes |
|---|---|---|
| Usable energy | ~4–6 kWh | Swappable modules |
| Added range | ~10–25 miles | Vehicle-dependent |
| DC output | ~10–20 kW | Session-dependent |
| Setup time | Under 10 minutes | Trunk to connected |
| Connector | J3400 (NACS); CCS1 supported | Cable included |
| Vehicle compatibility | Curated North American EV set | Expanding over time |
| Enclosure | Rugged, automotive-grade | Built for trunk life |
| Weight & dimensions | Modular handling | Easy to lift and stow |
A brighter, more flexible tomorrow
Planning ahead?
Join the waitlist for early access and launch news.
RSERVEMore Miles Ahead.