







ETENWOLF J1 Portable Car Battery Jump Starter
- [Start Dead Batteries] Instantly start dead batteries with 2000 amps of peak lithium power—even at voltages as low as 9V. Designed to deliver reliable jump starts even in freezing temperatures as low as -4°F, this car jumper starter is compatible with up to 8.0L gas and 6.5L diesel engines, delivering up to 35 jump starts on a single charge. Perfect for cars, SUVs, trucks, motorcycles, boats, and more.
- [8 Intelligent Safety Protections] Engineered for safe, reliable starts in any condition. Built with 8 advanced safety protections, this battery jumper starter portable operates in extreme temperatures from -4°F to 140°F. The included smart jumper cables and heavy-duty clamps ensure secure, long-lasting connections. Spark-proof and reverse polarity protection offer foolproof operation with any 12V vehicle—no sparks, no connection errors.
- [16000mAh Capacity, Portable Charger] Fully recharges in just 2 hours—always ready when you need it. The 16,000mAh battery and dual USB ports allow this jump box for car battery to double as a power bank for phones, iPad, and other devices. The upgraded USB-C input ensures faster recharging for maximum efficiency. The ETENWOLF Lithium Battery Jump Starter delivers dependable backup power wherever you go.
- [Compact, Integrated LED Flashlight] Designed for ultimate portability, this portable car jump starter fits easily in your glove box, backpack, or travel bag—ready to assist you anytime, anywhere. Featuring a built-in LED flashlight with 4 versatile modes, it delivers reliable illumination for roadside emergencies, camping, or nighttime repairs. Combining convenience and safety, it ensures you’re never left in the dark.
- [Durable & Complete Package] Built to withstand tough conditions and frequent use, the ETENWOLF jump pack features a rugged IP65-rated shell with a rubberized coating that protects against water, dust, and impact. Package includes: Jump Starter, Smart Battery Clamps, USB-C Charging Cable, Drawstring Storage Bag, and User Manual.
🚚Shipping Fee
Free standard shipping on all U.S. orders over $39, except for Alaska, Hawaii, Guam, Puerto Rico, and the Virgin Islands.
⏰Shipping Time
We will ship within 1-2 business days after the order is placed. You will receive within 5-8 business days (remote areas or during holidays may take longer).
👉🏻 Learn more about the Shipping Policy
If for any reason you're not satisfied with your purchase, we offer a 90-day money-back guarantee. Try ETENWOLF products risk-free.
👉🏻 Learn more about the Refund policy
We stand behind the quality and durability of our products. Join our club and register your product to enjoy a maximum 24 months warranty.

Frequently Asked Questions
Can the ETENWOLF J1 vehicle jump starters handle my truck's engine?
Yes! The ETENWOLF J1 supports gas engines up to 8.0L and diesel engines up to 6.5L, making it perfect for cars, trucks, SUVs, motorcycles, and even boats. If your truck's engine falls within these limits, this vehicle jump starters will get you back on the road quickly.
How many times can I jump start my vehicle before recharging the ETENWOLF J1 vehicle jump starters?
You can expect up to 35 jump starts on a single full charge. This makes it a reliable emergency tool to keep handy without worrying about frequent recharging.
Is it safe to use the ETENWOLF J1 vehicle jump starters? Does it have protections against common mistakes?
Absolutely! The ETENWOLF J1 vehicle jump starters includes 8 advanced safety protections such as spark-proof technology and reverse polarity protection to prevent accidents—even if you accidentally connect the clamps backwards.
Can I charge my phone or other devices with the ETENWOLF J1 vehicle jump starters?
Yes, the ETENWOLF J1 vehicle jump starters features dual USB ports that allow you to charge phones, tablets, and other USB devices. Plus, it charges quickly with a fast 2-hour USB-C recharge time.
Is the ETENWOLF J1 vehicle jump starters durable and easy to use in harsh conditions?
Definitely. Its compact, rubber-coated IPX5-rated case makes it rugged and water-resistant, and it works reliably even in cold temperatures down to -4°F. The built-in LED flashlight with 4 modes helps in low-light situations too.














































