S ZEVZO ET03 Car Jump Starter 2000A
- 2000 A rated, peak stated as 2500 A in the bullets
- 12V engines up to 7.5L gas and 6.5L diesel
- 59.2Wh battery, 16000 mAh
- Up to 40 jump starts per charge
- Two 5V/2A USB outputs plus a 400 lumen light
- 1.2 pounds, 1.5 x 3.4 x 7.5 inches
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A compact lithium jump box for gas and diesel engines that also charges phones and works as a flashlight. The listing mixes two current figures, so read the rated number in the specs as the dependable one.
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ASIN: B0CNRDP27BModel: ET03Category: Jump Starters
Overview
S Zevzo packs a lithium battery and smart clamps into a pocket jump starter that revives a flat car battery without a second car. An LCD shows the charge level, and two USB ports let it double as a phone charger.
Drivers get a backup for a dead battery that fits in a glove box and charges devices on trips. The current figure is listed inconsistently between bullets and specs, and the listing gives no recharge time.
Who it's for
Commuters, campers and boat owners who want a self rescue tool for a dead battery will find it compact. Owners of heavy diesel equipment beyond the engine limits need a larger unit.
Pros and cons
- Light and glove box sized
- Doubles as a USB power bank
- Flashlight with strobe and SOS
- Smart clamps warn of errors
- Current figures conflict across the listing
- Recharge time not listed
- No USB C output listed
- Not for engines beyond the stated sizes
Performance notes
Starting ability depends on how much current the lithium pack can deliver into a flat battery, and colder weather reduces it. The smart clamps check polarity and connection before releasing power, signaling faults with lights and a beep. Charge level shown on the LCD tells you whether a jump is likely to succeed.
Specifications
| Brand | S Zevzo |
|---|---|
| Model | ET03 |
| Dimensions & fit | |
| Item weight | 1.2 pounds |
| Item Dimensions D x W x H | 1.5 x 3.4 x 7.5 inches |
| Engine size | Up to 7.5L gas, 6.5L diesel |
| Capacity & performance | |
| Peak Output Current | 2000 A (bullets state 2500 A peak) |
| Battery Capacity | 16000 mAh, 59.2Wh |
| Operating temperature | -4 to 140 F |
| Power & efficiency | |
| Battery Type | Lithium Ion |
| Voltage | 12 volts |
| Included components | |
| Included Components | Jump starter, smart jump clamps, USB Type-C charging cable, storage case, user manual |
| Warranty & support | |
| Manufacturer Warranty Description | 2 Year Manufacturer Warranty |
| Other details | |
| USB ports | 2 x 5V/2A |
| Flashlight | 400 lumens, stable, strobe, SOS |
| Jump starts per charge | Up to 40 |
| Protections | 10 safety protections incl. reverse polarity, short circuit, overcharge |
| Standby time | 24 months |
| Display | LCD battery status |
Frequently asked questions
How often should I recharge the S Zevzo ET03 in storage?
The listing states a standby time of up to 24 months. Check the LCD charge reading before long trips and top it up with the included Type-C cable.
Can the ET03 start a diesel truck?
It is rated for 12V diesel engines up to 6.5L. Larger diesel engines are outside its stated range.
Can I charge my phone from the S Zevzo ET03?
Yes. It has two 5V/2A USB output ports that can charge two devices at the same time.
What happens if I connect the clamps backward?
Reverse polarity is one of the ten listed protections, and the smart clamps signal errors with lights and a beep.