S ZEVZO ET03 Jump Starter 4000A | 74Wh Portable 12V Battery Pack for 8.0L Gas / 7.0L Diesel

Meet the S ZEVZO ET03 Jump Starter, a compact 74Wh power hub designed to revive vehicles with up to 8.0L gas engines or 7.0L diesel engines. Its 4000 amps peak current provides rapid boosts, while a single charge can support multiple starts—up to about 50 jumps—making it a dependable companion for daily drivers, weekend explorers, or service fleets.

Beyond jumping, the ET03 doubles as a portable power bank. It offers two 5V/2A USB ports so you can charge smartphones, tablets, or other USB devices, with both ports usable at the same time for faster on‑the‑go charging.

The device includes a bright 500-lumen LED flashlight with three modes (steady, strobe, SOS) to illuminate dim roads, garages, or emergencies. An LCD display keeps you informed about battery status, while an operating temperature range from 14°F to 140°F helps it perform in diverse climates. With an impressive standby time of up to 24 months, this jump starter is ready when you are.

Safety is a core focus with 10 intelligent protections against overcharge, short circuits, reverse polarity, surges, and sparking. The smart clamps provide quick visual or audible indications to help you monitor the status during a boost. For dead batteries, ensure the ET03 is fully charged or above 14V before attempting to start, as recommended in the user guidelines.

What you get is a complete kit: the ET03 Jump Starter, smart jump cables, a USB-C charging cable, a sturdy storage case, and a user manual. S ZEVZO backs the product with a 2-year full-service commitment, so you have support if you have questions or encounter any issues with the jump box.

Key capabilities

• 4000A peak current for fast, reliable boosts
• Supports up to 8.0L gas and 7.0L diesel engines
• Up to 50 jump starts per charge for busy days
• Force start function helps revive deeply discharged batteries
• Operating range from 14°F to 140°F for varied climates
• 500-lumen LED flashlight with stable, strobe, and SOS modes
• LCD status display to monitor battery health
• 24 months of standby time for readiness

Power, safety, and versatility

• 74Wh portable battery with two USB ports (5V/2A each)
• USB-C charging option for faster recharges
• 10 intelligent protections against overcharge, short circuits, and reverse polarity
• Smart clamps deliver visual and audible alerts for safe operation

In short, the ET03 aims to be a practical, multipurpose companion on the road or at home, offering rapid starts, portable charging, and dependable safety features—without making promises beyond what the data supports.