Free ShippingProduct Specifications for Lokithor J403HD Heavy Duty 12V 10000A Jump Starter
| BM Part #: | J403HD |
|---|---|
| Voltage: | 12 Volt |
| Energy Capacity: | 236.8 Wh |
| Type: | Li-Poly |
| Length: | 13.58" |
| Width: | 8.33" |
| Height: | 3.06" |
| Shipping Weight: | 10.12Lbs |
| Warranty: | 1 Year |
| Rechargeable: | Yes |
| Peak Current: | 10,000A |
| Engine Rating (Gas): | Up to 16.0L |
| Engine Rating (Diesel): | Up to 16.0L |
| LED Output: | 400 Lumens, 3 modes (Steady/Strobe/SOS) |
| IP Rating: | IP65 (dust and water resistant) |
| Certifications: | CE, UKCA, FCC, RoHS, UN38.3 |
- 10,000A Peak Current: Starts gas or diesel engines up to 16.0L, built for trucks and heavy equipment.
- Lightweight LiPO Battery: Weighs just 9.15 lbs, far lighter than comparable lead-acid jump starters.
- ConnectMax Clamping System: Green and yellow indicators confirm a secure connection before starting.
- 236.8Wh Power Capacity: Provides a reliable power reserve for large 12V engines and devices alike.
- 100W USB-C Input/Output: Charges phones, tablets, and other USB-C devices at full speed in the field.
- 400-Lumen LED Light: Steady, strobe, and SOS modes for job-site and roadside visibility.
- IP65 Weather Resistance: Holds up to dust and moisture in trucks, job sites, and outdoor storage.
- Compact Build: Fits in a truck cab or toolbox at roughly 10.7" x 8.3" x 3.1".
Product Description
Heavy-Duty Power Without the Heavy-Duty Weight
Jump starters strong enough for large diesel engines usually come with a catch: they're heavy, bulky, and a pain to store. The Lokithor J403HD skips that trade-off. It delivers 10,000A of peak current, enough to start gas or diesel engines up to 16.0 liters, while weighing in at just 9.15 lbs thanks to its LiPO battery.
Built for Serious Vehicles and Equipment
This isn't a jump starter for compact cars. The J403HD is designed for semi-trucks, coaches, buses, and motorhomes, along with mining, agricultural, and construction equipment that runs on larger 12V systems. If your fleet or shop has struggled to find a jump starter with enough reserve power for these engines, this is built for exactly that job.
A Connection You Can Trust
Corroded terminals and loose clamps are one of the most common reasons a jump start fails. ConnectMax technology checks the connection between the clamps and your battery automatically, showing a green light for a solid connection or yellow for a poor one, so you can fix the contact before you try to start the engine.
More Than Just an Engine Starter
With a 236.8Wh battery and 100W USB-C input/output, the J403HD also works as a serious portable power source. Charge phones, tablets, or other USB-C devices in the field, and use the built-in 400-lumen LED light, with steady, strobe, and SOS modes, when you're working in low light. It's also rated IP65 for dust and water resistance, so it holds up in a truck, on a job site, or outdoors in rough weather.
Compact Enough to Actually Keep With You
At roughly 10.7" x 8.3" x 3.1", the J403HD is sized to fit in a truck cab, toolbox, or equipment trailer instead of taking up a whole shelf. That's the point: heavy-duty starting power you'll actually have on hand when you need it, not left behind because it was too much to carry.
Get commercial-grade starting power in a size you can actually manage. Add the Lokithor J403HD to your cart today.
Frequently Asked Questions
What size engines can the J403HD jump-start?
A: It delivers 10,000A of peak current, enough to start 12V gas or diesel engines up to 16.0 liters, making it suitable for semi-trucks, buses, motorhomes, and mining, agricultural, and construction equipment.
Does it work on 24V vehicles?
A: No. The J403HD is a 12V-only jump starter. If you need to start both 12V and 24V vehicles, Lokithor's J10000HD offers dual-voltage switching.
Does the J403HD have a built-in air compressor?
A: No. The J403HD is a dedicated heavy-duty jump starter, portable power source, and flashlight; it doesn't include a tire inflator. Lokithor's JA-series jump starters are built with an air compressor if that's a feature you need.
How is this different from Lokithor's other heavy-duty jump starters?
A: The J403HD uses a LiPO battery instead of LiFePO4, which keeps it noticeably lighter (9.15 lbs) than Lokithor's LiFePO4-based heavy-duty units while still delivering the same 10,000A peak current. The trade-off is a shorter rated cycle life (1,000+ cycles vs. 2,000+ for LiFePO4 models).
Is it safe to use outdoors or in wet conditions?
A: Yes. It carries an IP65 rating for dust and water resistance and is rated to operate from -4°F to 140°F, so it can handle use in a truck bed, on a job site, or outdoors in rough weather.
