Cat CLJ1200
Cat CLJ1200 1,200-Peak Amp Li-Ion Jump Starter User Manual
Model: CLJ1200 | Brand: Cat
Introduction
The CAT CLJ1200 1,200-Peak Amp Li-Ion Jump Starter is a compact and powerful solution designed to jump-start most vehicles, including those with V8 engines. This device features detachable smart jumper cables with integrated reverse-polarity protection for safe and easy connections. Beyond jump-starting, it serves as a portable power bank with standard USB and USB-C ports for charging mobile devices. An integrated LED work light assists in low-light conditions, and a clear 3-bar battery display provides quick status updates. The unit can be charged using either an AC or DC adapter.
Important Safety Information
WARNING: Cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov.
Always read and understand all safety warnings and instructions before using this product. Failure to follow the warnings and instructions may result in electric shock, fire, and/or serious injury. Keep these instructions for future reference.
What's in the Box

This image displays the main components included with the CAT CLJ1200: the jump starter unit, smart jumper cables, an AC charger, a DC charger, and a USB-A charging cable.

A closer look at the powder-coated metal clamps, the AC charger, and highlights the USB-C charging capability of the unit.
- CAT CLJ1200 Jump Starter Unit
- Detachable Smart Jumper Cables with Reverse-Polarity Protection
- AC Wall Charger
- DC Car Charger
- USB-A Charging Cable
- User Manual (this document)
Product Features

An annotated diagram showing the various components and ports of the CLJ1200 jump starter, including USB-A and USB-C ports, LED light, and the smart controller for the jumper cables.

This image illustrates key performance features such as 1200 peak amps, the ability to provide up to 30 jump starts, the presence of 3.1A USB-A and USB-C ports, and the integrated LED light.
- 1,200 Peak Amps: Delivers sufficient power to jump-start most vehicles, including V8 cars and trucks.
- Power Bank Functionality: Equipped with one USB Type-A port and one quick-charging USB Type-C port (total 3.1 amps) for charging smartphones and other electronics.
- Smart Jumper Cables: Easy-to-use detachable cables with integrated reverse polarity alarm to alert users of improper connections, ensuring safety.
- Ultrabright LED Work Light: Helps illuminate the work area in dark conditions, useful for roadside repairs.
- Compact Design: Portable and easy to store in a vehicle.
Charging the Jump Starter
Before first use, fully charge the CAT CLJ1200 jump starter. It is recommended to recharge the unit after each use and at least every 3-6 months to maintain optimal battery health.
- Using the AC Wall Charger: Connect the AC charger to the jump starter's charging port and plug it into a standard wall outlet.
- Using the DC Car Charger: For charging on the go, connect the DC car charger to the jump starter's charging port and plug it into your vehicle's 12V accessory outlet.
- The 3-bar battery display will indicate the charging progress. All three bars will illuminate when fully charged.
Operating Instructions: Jump Starting a Vehicle
Always ensure the jump starter is fully charged before attempting to jump-start a vehicle. Follow these steps carefully:

The integrated LED work light provides illumination for working in dark environments, such as under the hood at night.
- Prepare the Vehicle: Turn off the vehicle's ignition and all accessories (lights, radio, air conditioning). Engage the parking brake.
- Connect Jumper Cables:
- Connect the RED positive (+) clamp to the positive (+) terminal of the vehicle's dead battery.
- Connect the BLACK negative (-) clamp to a clean, unpainted metal part of the vehicle's engine block or chassis, away from the battery. Do not connect the negative clamp directly to the negative terminal of the dead battery.
The smart cables feature reverse-polarity protection. If an incorrect connection is made, an alarm will sound, and the unit will not allow current to flow, preventing damage.
- Start the Vehicle: Once the cables are correctly connected and the smart controller indicates a safe connection, attempt to start the vehicle. Crank the engine for no more than 5 seconds.
- If Vehicle Doesn't Start: Wait at least 1 minute before attempting to crank the engine again. Do not attempt more than three consecutive jump starts.
- Disconnect Jumper Cables: Once the vehicle starts, disconnect the BLACK negative (-) clamp first, then disconnect the RED positive (+) clamp.
- Recharge Jump Starter: Recharge the CAT CLJ1200 as soon as possible after use to ensure it's ready for the next emergency.

The CAT CLJ1200 jump starter with its smart cables properly connected to a vehicle's battery terminals, ready for operation.
Using as a Portable Power Bank
The CLJ1200 can also be used to charge your portable electronic devices.

The back of the unit features both USB-A and USB-C output ports for charging various electronic devices.
- Connect your device's USB charging cable to either the USB Type-A or USB Type-C port on the jump starter.
- The jump starter will automatically begin charging your device.
- Monitor your device's charging status. Disconnect once charging is complete.
Maintenance and Storage
- Keep the jump starter clean and dry. Wipe with a soft, damp cloth if necessary. Do not use harsh chemicals.
- Store the unit in a cool, dry place, away from direct sunlight and extreme temperatures.
- Recharge the unit every 3-6 months, even if not used, to prolong battery life.
- Inspect cables and clamps for any damage before each use.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Jump starter does not turn on. | Battery is fully discharged. | Charge the jump starter using the AC or DC charger. |
| Vehicle does not start after jump attempt. | Incorrect cable connection; Vehicle battery severely discharged; Vehicle issue not battery-related. | Check cable connections (ensure no reverse polarity alarm). Allow 1 minute between attempts. If still no start, consult a mechanic. |
| Reverse polarity alarm sounds. | Jumper cables connected incorrectly. | Disconnect cables and re-connect them correctly: RED to positive (+), BLACK to engine block/chassis. |
| USB ports not charging devices. | Jump starter battery low; Device not compatible; Cable issue. | Recharge the jump starter. Ensure your device is compatible and the USB cable is functional. |
Specifications
| Feature | Detail |
|---|---|
| Brand | Cat |
| Model | CLJ1200 |
| Peak Output Current | 1200 Amps |
| Amperage | 1200 Amps |
| Product Dimensions | 7"D x 1"W x 3"H |
| Item Weight | 1 Pounds |
| Battery Type | Lithium Ion (1 included) |
| USB Output | 1 USB Type-A, 1 USB Type-C (Total 3.1 Amps) |
| Manufacturer | BACCUS GLOBAL LLC |
| UPC | 814632014980 |
| Country of Origin | China |
Warranty Information
This product is covered by a one (1) year limited warranty from the date of purchase. This warranty covers defects in material and workmanship under normal use. For full details regarding warranty terms, conditions, and how to make a claim, please refer to the official warranty statement provided by BACCUS GLOBAL LLC.
Customer Support
For technical assistance, troubleshooting, or warranty claims, please contact the manufacturer, BACCUS GLOBAL LLC. Refer to the product packaging or the manufacturer's website for the most current contact information.
You may also find additional resources and FAQs on the product page on Amazon.
Ask a question about this manual
Ask about setup, troubleshooting, compatibility, parts, safety, or missing instructions. Manuals+ will review the question and use this page’s manual context to help answer it.







