Cordless by design
Slide in the rechargeable 37 Wh battery for untethered inflation around the vehicle.
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ROADSTEAD
Notify Me at Launch
01 / REMOVABLE BATTERY
02 / BATTERY-SLOT 12V ADAPTER
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Coming soon
Expected launch price $64.99
Dual-power roadside inflator
Dead battery? You’re still covered.
Replace the rechargeable battery with the included 12V vehicle-power adapter and continue inflating directly from your car.
Expected launch price
$64.99
Notify Me at Launch
No charge today. Get product and launch updates by email.
Cordless power, same-slot 12V backup and a complete roadside kit - all in one compact system.
- 37 Whremovable battery
- Same slot12V power adapter
- ≈10 ftfused vehicle cable
One slot. Two power options.
01 Road-ready design
Go cordless
Use the removable 37 Wh battery.
Swap the power module
Slide the 12V adapter into the same slot.
Plug into the vehicle
Continue from the cigarette-lighter outlet.
One mounting slot. Two ways to power it.
Cordless convenience - with dependable vehicle power when you need it.
There is no automatic switch. When the battery is depleted, remove it and install the included 12V adapter in its place.
Vehicle power in the same slot
Remove the battery, slide in the adapter, and power the compressor directly from the vehicle.
A deliberate manual swap
Three simple steps. Then keep inflating.
The two power modules are interchangeable - not automatic. The same mounting slot accepts either one.
- 1
Remove the depleted battery
Release the rechargeable power module from the inflator.
- 2
Slide in the 12V power adapter
Install it in the exact same mounting slot.
- 3
Plug into the vehicle
Connect the cigarette-lighter cable and continue inflating directly from the car.
Fewer roadside frustrations
The small details do the heavy lifting.
From the valve connection to the way the cables pack away, Relay 37 is designed as one complete inflation system.
Locking tire chuck
Clamp onto the valve with a lever instead of repeatedly threading a connector in the dark.
Reach around the vehicle
The included battery-slot adapter has an approximately 10-foot fused cigarette-lighter cable.
Light the work area
The integrated LED work light includes a fast-flash mode for roadside visibility.
Keep every piece together
The hose, power modules, adapters and spare fuse store in a compact protective carrying case.
Lock on. Stay connected.
A better connection at the tire.
A locking lever chuck clamps onto the valve stem quickly and stays put while you move to the controls.
- Fast lever action
- Secure hands-off connection
- Flexible air hose included
Set it. See it. Save it.
Two pressure readings. One clear view.
The dual digital display keeps your preset target and the tire’s current pressure visible at the same time, so you can track every fill at a glance.
- 1
Preset your target
Choose the pressure you want before inflation begins.
- 2
Watch live pressure
A second readout shows the tire’s current pressure as it fills.
- 3
Stop at the target*
Preset-pressure control stops inflation when the selected pressure is reached.
- 4
Recall a favorite setting*
Pressure memory makes repeat inflation faster and more familiar.
Compact size. Serious capability.
Built to handle more than a quick top-off.
A 25 mm cylinder, broad pressure range and four selectable pressure units give Relay 37 the versatility to move from vehicle tires to bikes, sports gear and inflatables. Its 175 x 70 x 240 mm body weighs just 0.75 kg.
3-160 PSIpressure range
4 unitsPSI, BAR, kPa, kg/cm²
0.75 kgcompact net weight
About 4 min*195/65 R15 tire
About 4 tires*per battery charge
25 mmcylinder diameter
*Estimated using 195/65 R15 tires. Inflation time and quantity vary with starting pressure, tire size, temperature and battery charge.
A more complete configuration
Cordless convenience shouldn’t be a single point of failure.
ConfigurationRelay 37Basic cordless-only inflator
Removable rechargeable batteryIncludedVaries by model
Same-slot 12V vehicle adapterIncludedNot on cordless-only models
Continue after the battery is depletedYes, after a manual adapter swapRequires recharging or another power source
Dual display for target + live pressureIncludedVaries by model
Stop at preset pressure*IncludedVaries by model
Pressure-memory functionIncludedVaries by model
Four pressure unitsIncludedVaries by model
Locking lever chuckIncludedVaries by model
Fused 12V cable + spare fuseIncludedNot applicable on cordless-only models
Organized carry caseIncludedVaries by model
One case. Everything in its place.
A complete roadside inflation kit.
- Dual-power tire inflator
- Removable 37 Wh rechargeable battery
- Battery-slot 12V direct-power adapter
- Approximately 10-foot fused cigarette-lighter cable
- Spare fuse
- USB-C charging cable
- Flexible air hose
- Locking tire chuck
- Ball needle
- Presta bicycle-valve adapter
- Tapered inflatable nozzle
- Compact protective carrying case
- Quick-start guide and English instruction manual
Recharge the removable battery with the included USB-C cable*.
One system, more than one ride
Ready for the road, trail, garage and game.
- Passenger cars
- SUVs
- Motorcycles
- Bicycles
- Sports gear
- Inflatables
Designed for personal-use tires and inflatables. Not intended for commercial truck tires.
Good questions, straight answers
Before you put it in the trunk.
What happens when the rechargeable battery is depleted?
Remove the depleted battery, slide the included 12V vehicle-power adapter into the same slot, and plug its cigarette-lighter cable into the vehicle to continue inflating directly from the car.
Does it switch to 12V power automatically?
No. The power source is changed manually: remove the battery, install the 12V adapter in the same slot, then plug the cable into the vehicle outlet.
What does the display show?
The dual digital display shows your preset target pressure and the tire’s current pressure at the same time. Preset-pressure control stops at the target*, while pressure memory helps you return to a preferred setting for repeat use*.
What pressure range and units does it support?
Relay 37 supports 3-160 PSI, or 0.2-11 bar, with PSI, BAR, kPa and kg/cm² selectable on the display.
How quickly can it inflate a tire?
Testing estimates around four minutes for a 195/65 R15 tire and around four comparable tires per battery charge*. Actual results vary with starting pressure, tire size, temperature and battery charge.
What is the expected price?
Relay 37 is expected to launch at $64.99. Send a launch-notification request and we’ll let you know when ordering opens.
How does the battery charge?
Remove the battery and recharge it using the included USB-C cable*. Charging time depends on the power source used.
What can Relay 37 inflate?
Use it for passenger cars, SUVs, motorcycles, bicycles, sports equipment and common inflatables. It is not intended for commercial truck tires.
Can it run continuously?
Like any compact compressor, Relay 37 should be allowed to cool between extended inflation jobs*. Follow the included manual for operating and cooldown guidance.
When can I order?
Relay 37 is coming soon. Send a launch-notification request and we’ll contact you when ordering opens.
*Asterisked performance and convenience features can vary with tire size, starting pressure, temperature, battery charge, power source and setup.
Be first to know
Keep a backup plan in the trunk.
Request an email when Relay 37 is ready to order.