LOKITHOR J400 Portable Jump Starter 2000A
- 2000A peak, 12V
- Up to 8.0L gas / 6.0L diesel engines
- Up to 25 starts per charge
- 5.75-inch status screen
- 300-lumen LED flashlight with SOS
- 6400 mAh, 450 g, 12-month warranty
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A compact lithium jump starter with strong peak output, a large status screen and USB charging. It is rated for engines up to the listed sizes, so very large diesels need a bigger unit.
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ASIN: B0CR1B6KX3Model: J400Category: Jump Starters
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Overview
Not a set of plain jumper cables, the LOKITHOR jump starter is a pocket lithium pack with smart clamps. Its connection detection adjusts output for each start, and a big screen shows battery status and alerts.
Strong starts from a small pack, with a clear screen and safety protections, make it easy to store in any vehicle. It also charges phones and lights the scene. Engine size limits apply, so check yours against the listed engine sizes.
Who it's for
Daily drivers, commuters and owners of motorcycles, ATVs and boats will find it useful for roadside starts. Owners of large commercial diesels should choose a higher-rated unit.
Pros and cons
- High peak current
- Many starts per charge
- Large status screen
- Reverse polarity and short protection
- Engine size limits apply
- No air compressor
Performance notes
Starting power comes from high-rate lithium cells that release current fast, while connection detection adjusts output to the battery. The protection system blocks reverse polarity and shorts. Cold weather and a deeply drained battery reduce starts per charge.
Specifications
| Brand | Lokithor |
|---|---|
| Model | J400 |
| Dimensions & fit | |
| Item weight | 450 g |
| Item Dimensions D x W x H | 3.39 x 6.89 x 1.69 inches |
| Engine size | Up to 8.0L gas / 6.0L diesel |
| Capacity & performance | |
| Peak Output Current | 2000 A |
| Battery Capacity | 6400 mAh |
| Power & efficiency | |
| Battery Type | Lithium polymer, 80C cells |
| Voltage | 12 volts |
| Included components | |
| Included Components | Jump starter, clamp, USB-A to USB-C cable, user manual |
| Warranty & support | |
| Manufacturer Warranty Description | 12-month warranty |
| Other details | |
| Specification Met | CE, UL |
| Flashlight | 300-lumen LED with SOS |
| Jump starts per charge | Up to 25 |
| Protections | Reverse polarity, short circuit, overcurrent |
| Display | 5.75-inch screen |
Frequently asked questions
What comes in the LOKITHOR J400 box?
The J400 jump starter, the jump starter clamp, a USB-A to USB-C cable and a user manual.
What engines can the LOKITHOR J400 start?
Up to 8.0L gas and 6.0L diesel engines.
How many jump starts per charge?
Up to 25 starts per charge.
Can it charge my phone?
Yes. The listing says it recharges devices with fast USB charging.