1. Product Overview
The YESPER Armor 3000A Jump Starter is a portable device designed to jump-start 12V vehicles with up to 10L gas or 8L diesel engines. It features a 20000mAh battery capacity, 100W two-way fast charging, an LED display for real-time monitoring, and multiple safety protections. Beyond jump-starting, it functions as a power bank for various electronic devices and includes a 400-lumen LED light.

Image 1.1: The YESPER Armor 3000A Jump Starter, showing the main unit, jumper cables, and charging cables.
2. What's in the Box
Verify that all components are present upon unboxing:
- 1 x YESPER Armor 3000A Jump Starter (20000mAh)
- 1 x Jumper Cable with Smart Clamps
- 1 x 100W Car Charger
- 1 x 60W USB-C to C Cable
- 1 x Cigarette Lighter Socket Adapter
- 1 x User Manual

Image 2.1: All items included in the YESPER Armor 3000A Jump Starter package.
3. Setup and Charging
3.1 Initial Charge
Before first use, fully charge the YESPER Armor Jump Starter. The device supports 100W two-way fast charging via its Type-C port. A full charge from 0% to 100% can be achieved in approximately 45 minutes using the included 100W car charger and USB-C to C cable.

Image 3.1: The jump starter being charged via its Type-C port, illustrating the 100W fast charging capability.
Video 3.1: Demonstration of the 100W fast charging feature of the YESPER Armor Jump Starter.
3.2 Device Components
Familiarize yourself with the device's buttons, ports, and display:

Image 3.2: Labeled diagram showing the Power Button, BOOST Button, Jumper Cable Socket, DC Out Port, USB Out Ports, Display Screen, and LED Light.
- Power Button: Turns the device on/off and cycles through LED light modes.
- BOOST Button: Used for jump-starting completely dead batteries.
- Jumper Cable Socket: Connects the smart jumper cables.
- DC Out Port: Provides 15V output for compatible devices like tire inflators.
- 5V/2.4A USB Out Port: Standard USB output for charging devices.
- QC3.0 USB Out Port: Quick Charge 3.0 compatible USB output.
- PD100W USB-C In/Out Port: For 100W fast charging input and output.
- Display Screen: Shows battery percentage, charge/discharge power, and status indicators.
- LED Light: Provides illumination with steady, strobe, and SOS modes.
4. Operating Instructions
4.1 Jump Starting a Vehicle
Follow these steps to safely jump-start your vehicle:
- Connect Jumper Cables: Insert the smart jumper cable plug into the jump starter's socket.
- Attach Clamps: Connect the RED (+) clamp to the vehicle's positive battery terminal and the BLACK (-) clamp to the vehicle's negative battery terminal. Ensure a secure connection.
- Check Display: Turn on the jump starter. The display should show "READY" if the connections are correct and the battery has sufficient charge.
- Start Vehicle: Attempt to start your vehicle. If it doesn't start immediately, wait 30 seconds before trying again.
- Remove Clamps: Once the vehicle starts, immediately remove the black clamp first, then the red clamp, and finally disconnect the jumper cable from the jump starter.

Image 4.1: The YESPER Armor Jump Starter connected to a car battery, ready for jump-starting.
Video 4.1: Step-by-step guide on how to jump start a car using the YESPER Armor Jump Starter.
4.2 Boost Start Mode (for completely dead batteries)
If your vehicle's battery is completely dead and the jump starter does not show "READY", use the Boost Start Mode:
- Follow steps 1 and 2 from "Jump Starting a Vehicle" above.
- Press and hold the BOOST button on the jump starter until the display shows "READY".
- Attempt to start your vehicle within 30 seconds.
- Once the vehicle starts, immediately remove the black clamp first, then the red clamp, and finally disconnect the jumper cable from the jump starter.
4.3 Using as a Power Bank
The YESPER Armor can charge various electronic devices:
- USB-C Port: Use the PD100W USB-C port for fast charging compatible smartphones, tablets, and laptops.
- QC3.0 USB Port: For quick charging devices that support QC3.0.
- 5V/2.4A USB Port: For standard charging of USB-powered devices.
- 15V DC Output: Connect the cigarette lighter socket adapter to the DC Out Port to power 15V/12V DC devices such as tire inflators or car vacuums.
4.4 LED Light Functions
Press the Power Button to cycle through the LED light modes:
- Steady Lighting: For general illumination.
- Strobe: For signaling or attracting attention.
- SOS: For emergency signaling.

Image 4.2: The jump starter's 400-lumen LED light being used to illuminate an engine bay.
5. Maintenance
To ensure the longevity and optimal performance of your YESPER Armor Jump Starter:
- Storage: Store the device in a cool, dry place away from direct sunlight and extreme temperatures.
- Recharging: For optimal performance, recharge the jump starter every 6 months, even if not in use. The device can hold a full charge for up to 24 months under moderate storage conditions.
- Cleaning: Wipe the device with a soft, dry cloth. Do not use harsh chemicals or abrasive materials.
- Safety: The device is housed in an IP65-rated rugged case, making it waterproof, dustproof, and drop-proof. However, avoid intentional submersion or severe impacts.

Image 5.1: The jump starter highlighting its 24-month standby capability and low-power technology.
6. Troubleshooting
The 3.2-inch LED display provides important status indicators to assist with troubleshooting:

Image 6.1: The jump starter's display showing battery percentage, wattage, and status icons like 'READY', 'Low Voltage', 'Misconnection Prevention', and 'Battery Low Temperature Reminder'.
- "READY" not displayed: Ensure clamps are correctly attached to the battery terminals. If the vehicle battery is completely dead, use the Boost Start Mode.
- Low Voltage Indicator: If the jump starter's battery is low, recharge it. For immediate jump-starting with low voltage, the Boost function may be necessary.
- Misconnection Prevention Indicator: This indicates incorrect clamp connection (e.g., reverse polarity). Disconnect and re-attach clamps correctly. The smart clamps have 10 built-in protections to prevent sparks and misoperation.
- Battery Low Temperature Reminder: In extremely cold conditions, the jump starter may indicate low temperature. Allow the device to warm up slightly before use for optimal performance.
- Device not turning on: Ensure the power button is pressed firmly. If the battery is completely drained, charge the device.
If you encounter issues not covered here, please refer to the Warranty & Support section for assistance.
7. Specifications
| Feature | Specification |
|---|---|
| Brand | YESPER |
| Model | Armor |
| Peak Output Current | 3000 Amps |
| Battery Capacity | 20000mAh |
| Engine Compatibility | Up to 10L Gas / 8L Diesel |
| Charging Input/Output | 100W Two-Way Type-C |
| USB Output Ports | QC3.0, 5V/2.4A |
| DC Output Port | 15V (compatible with 15V/12V devices) |
| LED Light Brightness | 400 Lumens |
| Safety Protections | 10 built-in protections (short circuit, over current, over charge, over discharge, over voltage, over temperature, reverse charge, reverse connection, AI software, low power consumption) |
| Waterproof Rating | IP65 |
| Product Dimensions | 2.08"D x 4.13"W x 9.37"H |
| Item Weight | 1.98 Pounds |
| Battery Type | Lithium Polymer |
8. Warranty and Support
8.1 Product Reliability
The YESPER Armor Jump Starter is designed for reliability, maintaining a full charge for up to 24 months under normal storage conditions. Its smart auto-shutoff feature helps preserve power.

Image 8.1: The jump starter emphasizing its 10 built-in safety protections for user and device safety.
8.2 Customer Support
For any questions, concerns, or technical assistance regarding your YESPER Armor Jump Starter, please contact our customer support team. Refer to the contact information provided in your product packaging or visit the official YESPER website for support details.
You can also visit the YESPER Store on Amazon for more information and product updates.





