4000A Portable Car Jump Starter With Air Pump

4000A Portable Car Jump Starter With Air Pump is a portable automotive support device for jump-starting, tire inflation, and USB charging. Its verified power system uses a 300 Wh battery or cell capacity with one built-in lithium-ion battery cell. The jump starter is made from 80% remaining battery. The everyday practical design is part of how the jump starter is put together. The description keeps to what this jump starter genuinely.

The unit includes smart preset pressure and automatic shut-off, a power-bank function with fast-charging USB 3.0, and a built-in 300-lumen LED flashlight with four modes: constant light, flash, SOS. It also includes an 18-month warranty and lifetime technical support. Because it is 80% battery remaining, the handfeel stays the same each time you reach for it. Most of the everyday value sits in the everyday practical design.

Product Details

• Material: No verified material information is provided
• Type: Portable car jump starter with air pump.

Specifications

• Battery Or Cell Capacity In Wh: 300
• Number Of Batteries Or Cells: 1
• Battery Or Cell Weight In Grams: 25
• How Batteries Are Packed: Batteries Built-In
• Battery Type: Lithium-ion
• Contains Batteries or Cells: Batteries
• Special Feature: Portable
• Output:12V/2A (jump start port) + 5V USB (power bank).

Features

• Smart Inflation: Smart preset pressure and automatic shut-off reduce the need for repeated adjustment or manual checking.
• Multi-function Power: The unit functions as a car battery booster, tire inflator, and portable power bank.
• USB Charging: Fast-charging USB 3.0 powers smartphones and tablets.
• Support Coverage: An 18-month warranty and lifetime technical support are provided for after-sales questions about the jump starter.

Style & Occasion

• Roadside Assistance: Portable vehicle support is suitable for unexpected roadside needs.
• Travel: The power-bank and flashlight functions support journeys where portable power and visibility are useful.
• Everyday Driving: The portable format suits routine vehicle ownership and commuting.
• Emergency Preparedness: Multiple lighting modes and USB output provide useful options during vehicle-related emergencies.

Care Instructions

• Always connect the positive and negative terminals correctly. A green light indicates proper connection, while an incorrect connection triggers a red warning light and buzzer alert.
• Do not run the air pump continuously for more than 6 minutes to avoid overheating.
• Light vapor or mist during use is normal and is caused by internal lubricant heating or temperature differences between the unit and cold air.
• Faint oil vapor during initial use is harmless and will dissipate quickly.

Why Choose This Jump Starter

4000A Portable Car Jump Starter With Air Pump: This jump starter combines vehicle support, tire inflation, USB power, and emergency lighting in one portable device. Smart pressure control, automatic shut-off, a 300-lumen flashlight, and verified built-in lithium-ion battery specifications support practical roadside use. Each detail above describes this jump starter exactly as it is made.