ACMOUNT 4000A Car Jump Starter （J450）

• Powerful Jumping Performance: This jump starter's powerful 4000A peak current quickly starts low-voltage and fully-drained batteries(Up to 8L Gas and 6.5L Diesel Engines), suitable for car, truck, motorcycle, boat, RV, tractor.
• Quick-Charge Power Bank: With USB outputs(5V/3.1A), this compact jump starter battery pack can charge your phone, tablet and other USB devices.
• Absolutely Safe: Acmount Jump starter uses design of Integrated Battery and Intelligent Clamps, which is fully insulated and safe enough. 10 types of protection include spark-proof, reverse-polarity protection to protect you from failure problems such as short circuits or sparks.
• LED Flashlight & Long Battery Life: The battery starter utilizes bright LED flashlight with 3 modes :Flash Light, Strobe Light, and SOS Light. When not in use, this car battery starter can hold power for about 18 months, always ready for help you.
• What U Will Get: Acmount J450 Jump Starter, Smart Jump Cables, USB Type-C Charging Cable, Storage Bag, User Manual; 12 Month Manufacture Guarantee Warranty and Life time reliable Technical Support. Any questions about product, contact us and you will get a satisfactory solution.
  

Q1: What engine sizes can this jump starter handle?
A: It delivers 4000A peak power, starting 8.0L gas / 6.5L diesel 12V vehicles like cars, SUVs, trucks, motorcycles, boats and tractors.

Q2: Is it safe for someone new to jump starting?
A: Super safe for beginners. It has 10 smart safety protections, including reverse polarity, short‑circuit and spark‑proof design.

Q3: Can I use it to charge my phone or other devices?
A: Yes. It works as a power bank with 5V/3.1A USB output, great for phones, tablets and dash cams.

Q4: How bright is the LED light and what modes does it have?
A: It has a bright LED with 3 modes: steady light, strobe and SOS, handy for night repairs or emergencies.

Q5: How long can it hold a charge when not in use?
A: It holds power really well—up to 18 months on standby, so it’s always ready when you need it.

Q6: Is it compact enough to store in the car?
A: Very portable and lightweight. It fits easily in glove boxes, trunks or storage bags, no bulky gear needed.

Q7: What’s included in the package?
A: You get the J450 jump starter, smart jumper cables, USB‑C cable, storage bag and user manual.

Q8: What warranty and support do you get?
A: It comes with a 12‑month warranty plus lifetime technical support, so you can buy with peace of mind.