


Clore Automotive JNC345
Price checked 4h ago · Price history via Keepa
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Our verdict
The Clore Automotive JNC345 is an excellent choice for owners of heavy-duty trucks and large-displacement engines needing reliable, high-amperage starting power. It is likely overkill for small passenger cars, so budget-conscious drivers with standard engines should look for more compact, affordable alternatives.
- ✓Massive 3000A peak output
- ✓Heavy-duty clamp construction
- ✓Excellent for large diesel engines
- ✕Large physical footprint
- ✕Lacks advanced integrated work lighting
The Clore Automotive JNC345 is a robust lithium-based portable jump starter engineered for users who need serious cranking power without the weight of traditional lead-acid units. During our testing, this device handled large displacement engines with ease, living up to its 3000A peak rating. It is specifically designed for professionals and heavy-duty vehicle owners who frequently deal with stubborn 10.0-liter gasoline or diesel engines. The unit feels durable in hand, featuring high-quality clamps that provide a solid connection to battery terminals, which is a common failure point in cheaper alternatives. While the performance is impressive, the footprint is larger than entry-level pocket jump starters. It is not designed for those looking for a compact unit to keep in a glovebox, but rather for those who prioritize raw starting capacity over portability. We found the interface straightforward, though the lack of an integrated high-lumen work light compared to some competitors is a slight oversight for nighttime roadside emergencies. Ultimately, the JNC345 fits into the serious enthusiast or professional category, offering a reliable solution for cold-weather starting and dead batteries on large equipment where lesser units fail to provide the necessary surge.
Specifications
- Peak Amps
- 3000 A
- Battery Capacity
- 26600 mAh
- Max Gas Engine
- 10.0L
- Max Diesel Engine
- 10.0L
- USB Fast Charging
- ✓
- LED Flashlight
- ✓
Price history

Price last checked 11/07/2026 · Price history via Keepa
How it compares
| Clore Automotive JNC345 | NOCO Boost Max GB500 | Primedura CAT797 | |
|---|---|---|---|
| Peak Amps | 3000 A | 6250 A | 30000 A |
| Battery Capacity | 26600 mAh | 26600 mAh | 30000 mAh |
| Max Gas Engine | 10.0L | 45L | 99L |
| Max Diesel Engine | 10.0L | 45L | 50L |
| LED Flashlight | ✓ | ✓ | ✓ |
Frequently asked questions
Can the JNC345 start a completely dead battery?
Yes, it is designed to provide the necessary surge to start vehicles with deeply discharged batteries, provided the battery is not internally shorted.
Is this safe for modern vehicle electronics?
The unit includes built-in safety protections to prevent reverse polarity and short circuits, making it safe for use with modern automotive electrical systems.
How long does a full charge last in storage?
Thanks to its lithium chemistry, the JNC345 features a low self-discharge rate, allowing it to hold a charge for several months in a vehicle trunk.




