LOKITHOR JA300 Jump Starter with Air Compressor
- 1500A peak for 12V vehicles
- 7.0L gas / 4.5L diesel engines
- 150 PSI, 35L/min built-in compressor
- Up to 30 jump starts per charge
- 720 days standby, 1000+ charge cycles
- UL-2743 listed
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A combined jump starter and tire inflator for small to mid-size engines, with auto shut-off pressure presets and a strong standby life. Large diesels exceed its rated engine size, and the listing does not say what comes in the box.
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ASIN: B09B73SX6SModel: JA300Category: Jump Starters
Overview
Not just a jump pack, this Lokithor unit pairs a jump starter with a turbo air compressor, a power bank and a flashlight in one case. You preset the tire pressure and it stops automatically when reached.
Carrying one device for a dead battery and a soft tire saves trunk space and covers the most common roadside problems. Its rated engine size suits cars and smaller trucks, so big diesel engines need a stronger pack.
Who it's for
Commuters and road trippers who want both a jump and air in the trunk suit it. Owners of heavy-duty diesel trucks should look at a stronger pack.
Pros and cons
- Jump starter and compressor in one
- Auto shut-off at preset pressure
- Long standby time
- Multiple safety protections
- Box contents not listed
- Diesel engine limit is modest
- Compressor is slower than shop air
- Weight not listed
Performance notes
Peak current is delivered in a short burst while the starter cranks, so the battery cells must stay cool between attempts. The compressor reads pressure digitally and shuts off at the preset, which avoids overinflation. Three cooling vents help it run longer before heat limits output.
Specifications
| Brand | Lokithor |
|---|---|
| Model | JA300 |
| Dimensions & fit | |
| Engine size | 7.0L gas, 4.5L diesel |
| Capacity & performance | |
| Peak Output Current | 1500A |
| Battery Capacity | 45Wh |
| Air flow capacity | 9.2 gpm |
| Power & efficiency | |
| Voltage | 12 volts |
| Other details | |
| USB ports | USB 3.0, 5V/3A, 9V/2A |
| Specification Met | UL-2743 |
| Flashlight | 300 lumens, steady, flash, SOS |
| Maximum pressure | 150 psi |
| Jump starts per charge | Up to 30 |
| Protections | Short-circuit, over-current, reverse polarity, over-temperature, over-charge, clamp-off |
| Standby time | Up to 720 days |
Frequently asked questions
What comes in the LOKITHOR JA300 box?
The listing does not list the box contents. It describes the unit as a jump starter, tire inflator, power bank and LED flashlight.
How big an engine can the LOKITHOR JA300 start?
Gas engines up to 7.0L and diesel engines up to 4.5L.
How fast does the compressor fill a tire?
It inflates a 195/65R15 tire from 0 to 35 PSI in about 5 minutes.
How long does it hold a charge?
Up to 720 days of standby time.