S ZEVZO ET03 Jump Starter 4000A
- 4000 amp peak output
- Up to 8.0L gas and 7.0L diesel engines
- 74Wh lithium ion battery (20000 mAh), 12 volt
- USB ports, LCD display and LED light
- Cars, trucks, vans, motorcycles, tractors and lawn mowers listed
- Carrying case and smart jumper clamps included
- 2 year manufacturer warranty
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A high-output lithium jump starter rated for large gas and diesel engines, with a case and smart clamps in the box. The listing gives no jump-start count per charge.
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ASIN: B0C42Y5TPDModel: ET03Category: Jump Starters
Overview
A lithium battery pack with smart jumper clamps delivers the starting current, while an LCD display and USB ports add readout and device charging. A built-in LED light and a carrying case complete the kit.
The engine ceiling is the headline, reaching well past passenger cars to lawn and farm equipment. Nothing states how many starts one charge delivers, and the clamp cable length is missing.
Who it's for
Households with a truck, van or tractor, and a lawn mower or motorcycle as well, can cover several engines with one pack. Owners who need a stated cable length or a stated start count should check other models.
Pros and cons
- High peak output rating
- Large gas and diesel engine range
- Case and smart clamps included
- LCD display and USB ports
- Jump starts per charge not given
- Clamp cable length missing
Performance notes
Starting power comes from the peak current rating, while the engine limits show what that current can realistically turn over. A deeply drained battery demands more current than a mild no-start. Stored energy also supplies the USB ports, so charging devices draws down what is left for starting.
Specifications
| Brand | S Zevzo |
|---|---|
| Model | ET03 |
| Dimensions & fit | |
| Item weight | 1.4 pounds |
| Item Dimensions D x W x H | 1.5"D x 3.4"W x 7.5"H |
| Engine size | Up to 8.0L gas and 7.0L diesel |
| Capacity & performance | |
| Peak Output Current | 4000 A |
| Battery Capacity | 20000 milliamp hours (74Wh) |
| Power & efficiency | |
| Battery Type | Lithium Ion |
| Amperage | 4000 A |
| Voltage | 12 volts |
| Compatibility & installation | |
| Compatible with Vehicle Type | Lawn Mower, Motorcycle, Passenger Car, Tractor, Truck, Van |
| Included components | |
| Included Components | Portable carrying case, jump starter, smart jumper clamps, USB charging cable, user manual |
| Warranty & support | |
| Manufacturer Warranty Description | 2 Year Manufacturer Warranty |
| Other details | |
| Automotive Fit Type | Universal Fit |
| USB ports | USB ports, LCD display, LED light |
Closest rivals on specs
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NOCO Boost GB40 UltraSafe Jump Starter 1000A- Item Weight 1.4 vs 2.4 pounds (-42%)
Frequently asked questions
How big is the S Zevzo ET03 jump starter?
The listing gives 1.5 x 3.4 x 7.5 inches and 1.4 pounds.
What comes in the box with the S Zevzo ET03?
A portable carrying case, the jump starter, smart jumper clamps, a USB charging cable and a user manual.