4000A Car Battery Jump Starter - 12V Jump Starter for Gas & Diesel Engines

The Ultimate Feature Set

6-IN-1 JUMP STARTER: S4000 Car Emergency Starter

Designed by leading tech experts in the United States, the S4000 jump starter is a versatile and reliable car emergency starter. This battery pack combines a car emergency start, 10 intelligent protections, a flashlight, a power bank, dual USB outputs, and a 3.4-inch intelligent screen.

POWERFUL BATTERY JUMP STARTER

With a powerful 4000A peak current, the S4000 jump starter quickly starts low voltage and fully drained car batteries. It can start up to 10.0L gas and 10.0L diesel engines. Suitable for cars, trucks, motorcycles, boats, RVs, or lawnmowers, this jump starter offers up to 70 emergency starts.

DUAL USB FAST OUTPUT

Equipped with two USB ports (5V/3A & 5V/2.4A), the S4000 jump starter quickly charges headphones, cell phones, tablets, drones, cameras, and other USB devices. Perfect for keeping your devices powered up during emergencies.

LCD SMART DISPLAY

The 3.4-inch LCD smart display provides clear and simple operation. Real-time detection and display of operation status, power level, and possible errors ensure you can easily monitor the battery pack’s status.

USER-FRIENDLY DESIGN

The battery starter comes with a bright 400 lumens LED light, lasting up to 72 hours. The luminous area is 2-3 times larger than other jump starters. With three modes (flashlight, strobe, SOS), you’re prepared for different emergency situations. The red SOS mode doubles as a warning triangle.

ADVANCED PROTECTION SYSTEM

Equipped with 10 advanced safety protections, the S4000 portable jump starter ensures safe use even in extreme temperatures (-4°F to 140°F).

INCLUSIONS AND CUSTOMER SUPPORT

What You Get: - Car jump starter x1 - Jumper cable x1 - Charging cable x1 - EVA carrying case x1 - 15W wall charger - User manual x1 - 2 years of product quality maintenance

Customer Support: If you have any after-sales questions, feel free to contact us.

USEFUL TIPS

1. Keep the battery starter power above 50% for better startup efficiency.
2. Don’t mistake the protective film on the screen for scratches.
3. For long-term storage, recharge the jump starter once every three months.
4. Use the "ready" function by pressing and holding for 4 seconds.