1. Introduction
The EnginStar HP100S is a versatile portable power bank designed to provide power for various electronic devices, including laptops, smartphones, and tablets. It also features a car jump starter function and an integrated LED flashlight, making it suitable for outdoor activities, travel, and emergency situations.
This manual provides essential information for the safe and efficient operation of your EnginStar HP100S power bank. Please read it thoroughly before use and retain it for future reference.

A black EnginStar HP100S portable power bank, showcasing its compact design, AC outlet, USB ports, and LED flashlight.
2. Package Contents
Verify that all items listed below are included in your package:
- 1 x EnginStar HP100S Portable Power Bank
- 1 x Home charger with Type-C plug
- 1 x Car cigarette lighter adapter
- 1 x Battery clamp for 12V cars
- 1 x User manual (this document)

The EnginStar HP100S power bank shown with its dimensions (7.9 x 3.9 x 1.6 inches) and included accessories: jumper cables, AC adapter, and car cigarette lighter adapter.
3. Specifications
| Feature | Specification |
|---|---|
| Battery Type | Li-Polymer |
| Capacity | 66Wh |
| Charging Input (Type-C) | 5V 3A, 9V 2A, 18W max |
| AC Output | 110V, 60Hz, 100W max |
| DC Output | 9V - 12.6V, 10A max |
| USB-A Output (x2) | Total 5V 3A, 9V 2A max |
| EC Output (Jump Start) | 400A - 1200A |
| Flashlight Type | LED with 3 modes (Light, Strobe, SOS) |
| Lifecycle | >1000 Times |
| Working Temperature | -20℃ - 60℃ / -4℉ - 68℉ |
| Weight | 1.5 lbs / 0.7 kg |
| Dimensions | 7.9 x 3.9 x 1.6 in / 20 x 10 x 4 cm |

A detailed view of the EnginStar HP100S power bank, highlighting the LED flashlight, AC output, jump starter ports, power button, AC ON/OFF button, Type-C input, USB outputs, and DC output, along with the digital display screen.
4. Safety Information
To ensure safe operation and prevent damage to the device or injury, please observe the following safety precautions:
- Do not disassemble, modify, or repair the device.
- Keep the device away from fire, water, and extreme temperatures.
- Do not expose the device to direct sunlight for extended periods.
- Avoid dropping or subjecting the device to strong impacts.
- Use only approved chargers and accessories.
- Keep out of reach of children.
- Ensure proper ventilation during use and charging.
- The device is UL safety certified, CE, FCC, and RoHS approved, ensuring protection for you and your devices.
5. Setup and Recharging the Power Bank
Before initial use, fully charge your EnginStar HP100S power bank.
5.1 Recharging the HP100S
The HP100S can be recharged using the included Type-C home charger, a car USB port, or a compatible USB port on a solar panel.
- Connect the Type-C charging cable to the Type-C input port on the HP100S.
- Connect the other end of the cable to a suitable power source (e.g., wall adapter, car USB port, solar panel USB port).
- The display screen will indicate the charging status.
For car jump-starting, ensure the power bank is charged to more than 50% capacity.
6. Operating Instructions
6.1 Jump Starting Your Car
The EnginStar HP100S can safely jump start 12V cars. Ensure the power bank has at least 50% charge before attempting to jump start a vehicle.
- Plug the jumper cables into the EC port on the EnginStar HP100S.
- Attach the jumper cable clamps to the car battery terminals:
- Connect the red clamp to the positive terminal (+).
- Connect the black clamp to the negative terminal (-).
- Start your car.
- Immediately disconnect the jumper cable clamps from your car battery within 10 seconds after the car starts.

The EnginStar HP100S power bank connected to a car battery with jumper cables, demonstrating its car jump-starting function.
6.2 Charging Your Laptop (AC Output)
The HP100S can power most laptops with its 100W max AC output.
- Plug your laptop's power adapter into the built-in AC outlet on the HP100S.
- Press the POWER button to turn on the device.
- Then, press the AC button to activate the AC output.
6.3 Charging Electronic Devices (USB and DC Output)
Charge your smartphones, tablets, and other USB or DC 12V compatible devices.
- Connect your device to the appropriate USB or DC12V output port on the HP100S.
- Press the POWER button to activate the outputs.

The EnginStar HP100S power bank simultaneously charging a laptop, a tablet, and a smartphone, illustrating its multi-device charging capability.

A diagram illustrating the EnginStar HP100S power bank's charging inputs (solar, home, car USB) and outputs (LED flashlight, phone, pad, laptop, jump starter), with approximate recharge counts.
6.4 Using the LED Flashlight
The integrated LED flashlight has three modes: steady light, strobe, and SOS.
- To turn the flashlight ON/OFF, long press the POWER button.
- To cycle through the modes (Light → Strobe → SOS), short press the POWER button once the flashlight is on.
7. Maintenance
Proper maintenance ensures the longevity and optimal performance of your EnginStar HP100S power bank.
- Cleaning: Use a soft, dry cloth to clean the exterior of the device. Do not use harsh chemicals or abrasive materials.
- Storage: Store the power bank in a cool, dry place, away from direct sunlight and extreme temperatures. If storing for extended periods, recharge the device every 3-6 months to maintain battery health.
- Battery Care: Avoid fully discharging the battery frequently. It is recommended to keep the battery charged above 20% when possible.
8. Troubleshooting
If you encounter issues with your EnginStar HP100S, consider the following general troubleshooting steps:
- Device not turning on: Ensure the power bank is sufficiently charged. Recharge the device if the battery level is low.
- Device not charging: Check all cable connections. Ensure the charging adapter is functioning correctly and the power source is active.
- Output not working: Ensure the power bank is turned on and the specific output (AC, USB, DC) is activated if required (e.g., AC button for AC output). Check if the connected device is compatible with the output specifications.
- Car not jump-starting: Verify that the power bank has at least 50% charge. Ensure jumper cable connections to the car battery are correct and secure (red to positive, black to negative).
If problems persist, contact customer support for assistance.
9. Warranty and Support
EnginStar products are designed for reliability and performance. For information regarding warranty coverage, technical support, or service inquiries, please refer to the warranty card included with your product or visit the official EnginStar website.

The EnginStar HP100S power bank depicted in an airport setting, emphasizing its portability for travel.

