Welcome
Thank you for choosing the NEXPOW T11F & Q12 Car Battery Jump Starter. This manual provides essential information for the safe and effective use of your device. Please read it thoroughly before operation and retain it for future reference.
Important Safety Instructions
- Always ensure the jump starter is fully charged before use to maximize performance and safety.
- Connect the red clamp to the positive (+) terminal of the vehicle battery and the black clamp to the negative (-) terminal.
- Do not touch the red and black clamps together to avoid short-circuiting.
- Keep the device away from children.
- Operate in a well-ventilated area.
- Refer to the error messages on the device display for troubleshooting specific issues.
Package Contents
The following items are included in your NEXPOW T11F & Q12 Car Battery Jump Starter package:
- NEXPOW Q12 Car Battery Jump Starter x1
- Smart Jump Cable x1
- USB Type-C Charging Cable x1
- Delicate Carrying Case x1
- Cigarette Lighter Converter x1
- User Manual x1

Image: The NEXPOW Q12 Jump Starter, smart jump cables, USB-C charging cable, cigarette lighter converter, and carrying case are neatly arranged on a flat surface, alongside the user manual.
Product Features
- High Capacity: Provides up to 5000A peak current and a high capacity of 24000mAh. Capable of starting all gasoline engines and diesel engines up to 12.0L.
- Wide Compatibility: Suitable for 12V vehicles, motorcycles, pickup trucks, RVs, tractors, trucks, cargo vans, ATVs, snowmobiles, and yachts.
- Advanced Safety: Equipped with a high-performance force start function and 8 safety protections, ensuring safe operation in various climates.
- Durable Design: Features a rugged casing with dust and shock resistance for reliability in any environment.
- Integrated Flashlight: Includes a built-in flashlight with three lighting modes: Lighting, SOS, and Strobe, for emergencies or nighttime use.

Image: Two NEXPOW car battery jump starters, T11F and Q12 models, are displayed side-by-side with their respective smart jump cables. The devices are black and red, highlighting their robust design.
Initial Setup and Charging
Before first use, fully charge your NEXPOW Jump Starter. It is recommended to check the charge level every few months to ensure it is ready when needed.
- Locate the USB Type-C charging port on the device.
- Connect the provided USB Type-C Charging Cable to the jump starter.
- Plug the other end of the USB Type-C cable into a compatible USB wall adapter (not included) or a power source.
- The LED indicators on the device will show the charging progress. Ensure all four blue lights are solid, indicating a full charge.

Image: The NEXPOW Jump Starter is shown with its various ports, including USB, USB 3.0, USB-C, and DC outputs, indicating its versatility for charging different devices.
How to Jump Start Your Vehicle
Follow these steps to safely jump start your vehicle:
- Ensure the jump starter is adequately charged (at least 50% recommended).
- Open the plastic cap on the jump starter to reveal the jump cable port.
- Insert the smart jump cable into the jump starter's port. The blue indicator light on the smart cable should illuminate.
- Connect the red (+) clamp of the smart jump cable to the positive (+) terminal of your vehicle's battery.
- Connect the black (-) clamp of the smart jump cable to the negative (-) terminal of your vehicle's battery.
- Once connected, the smart jump cable's indicator light should turn green, signifying a correct connection and readiness to jump start.
- Start your vehicle's engine.
- Once the engine starts, immediately remove the smart jump cable's black (-) clamp from the vehicle battery, followed by the red (+) clamp.
- Disconnect the smart jump cable from the jump starter.

Image: The NEXPOW Jump Starter is shown connected to its smart jump cables, which feature red and black clamps. The device is compact and ready for use.

Image: A person is shown connecting the red clamp of the NEXPOW Jump Starter to the positive terminal of a car battery, demonstrating the initial step of the jump-starting process.
Additional Functions
Using the Flashlight
The built-in LED flashlight provides illumination for various situations:
- Lighting Mode: Long press the power button for 2 seconds to turn on the flashlight.
- SOS Mode: Short press the power button again to activate SOS flashing.
- Strobe Mode: Short press the power button a third time for strobe light.
- To turn off the flashlight, long press the power button for 2 seconds.

Image: The NEXPOW Jump Starter's built-in LED flashlight is demonstrated, showing its various modes including steady light, SOS, and strobe, useful for emergencies or low-light conditions.
Charging External Devices
The jump starter can also function as a power bank to charge your electronic devices:
- Connect your device's USB charging cable to one of the USB output ports on the jump starter.
- The jump starter will automatically begin charging your device.
Maintenance
To ensure the longevity and optimal performance of your NEXPOW Jump Starter:
- Store the device in its carrying case in a cool, dry place.
- Recharge the unit every 3-6 months, even if not in use, to maintain battery health.
- Clean the exterior with a soft, damp cloth. Do not use harsh chemicals or abrasives.
Troubleshooting
If you encounter issues with your jump starter, refer to the error messages displayed on the smart jump cable or consult the detailed troubleshooting section in the included user manual.
| Error Code | Problem | Solution |
|---|---|---|
| 1 | Jumper clamps connected incorrectly. | Reverse them to ensure correct connection. |
| 2 | Car battery is weak or nearly dead. | Activate the force start function by pressing both Power and LED buttons simultaneously for 2-3 seconds. |
| 3 | Jump starter is inoperable due to extreme temperatures. | Wait for the jump starter to return to its optimal operating temperature range of 5°F to 113°F (-20°C to 45°C). |
| 4 | Jump starter is locked after frequent short-term use. | It will automatically unlock after 10 minutes. |
Technical Specifications
| Specification | Value |
|---|---|
| Brand | NEXPOW |
| Battery Cell Composition | Lithium Ion |
| Voltage | 12 Volts (DC) |
| Vehicle Service Type | Automotive |
| Battery Capacity | 24000 Milliamp Hours |
| Peak Current (Q12) | 5000A |
| Engine Compatibility (Gasoline) | All (Q12), up to 7L (T11F) |
| Engine Compatibility (Diesel) | Up to 10L (Q12), up to 5.5L (T11F) |
Warranty and Support
For warranty information, product registration, or customer support, please refer to the contact details provided in the included user manual or visit the official NEXPOW website. Keep your purchase receipt as proof of purchase for warranty claims.





