1. Introduction
The Hammer H Forge Power Plus LTE is a robust mobile phone designed for demanding environments. It is shockproof, dustproof, and waterproof, certified with IP68 and MIL-STD-810H standards. This device is built to withstand harsh conditions, making it suitable for construction sites, railway work, tunnels, and other challenging outdoor activities where durability is essential.
2. Package Contents
Verify that all items are present in the product packaging:
- Hammer H Forge Power Plus LTE Mobile Phone
- USB Cable
- User Manual (this document)
Note: A power adapter is not included in the package. Use a compatible USB-C charger.
3. Product Overview
Familiarize yourself with the key components of your Hammer H Forge Power Plus LTE phone.

Figure 3.1: Front View. This image displays the front of the Hammer H Forge Power Plus LTE phone, showing the display, keypad, and earpiece.

Figure 3.2: Back View. This image shows the rear of the Hammer H Forge Power Plus LTE phone, highlighting the digital camera, speaker, and the IP-68 rating.

Figure 3.3: Side View. This image illustrates the side profile of the Hammer H Forge Power Plus LTE phone, showcasing its robust casing and textured grip.

Figure 3.4: Durability Features. This image highlights the IP68 waterproof and dustproof rating, along with the MIL-STD-810H standard for ruggedness, confirming the phone's suitability for harsh environments.
4. Setup
4.1. Installing SIM Cards and Battery
- Remove the back cover: Carefully open the back cover of the phone.
- Insert SIM cards: Locate the SIM card slots. Insert your Nano SIM cards into the designated slots. This phone supports Dual SIM functionality.
- Insert the battery: Place the 2300 mAh removable battery into its compartment, ensuring the contacts align correctly.
- Replace the back cover: Securely close the back cover until it clicks into place, ensuring a tight seal for water and dust resistance.
4.2. Charging the Battery
Before first use, fully charge the phone's battery.
- Connect the provided USB-C cable to the phone's USB-C port.
- Connect the other end of the USB-C cable to a compatible USB power adapter (not included) or a computer's USB port.
- The charging indicator on the phone will show the charging status.
- Once fully charged, disconnect the cable.

Figure 4.1: Battery Information. This image details the 2300 mAh battery, offering up to 10 hours of talk time and over 40 days of standby, with convenient USB-C charging.
4.3. Powering On/Off
- To Power On: Press and hold the Power/End Call button until the screen lights up.
- To Power Off: Press and hold the Power/End Call button, then select "Power Off" from the options on the screen.
5. Operating Instructions
5.1. Basic Functions
- Making Calls: Enter the phone number using the keypad and press the Green Call button.
- Answering Calls: Press the Green Call button when the phone rings.
- Ending Calls: Press the Red End Call button.
- Sending Messages: Navigate to the "Messages" menu, select "New Message," enter the recipient's number and your text, then send.
- Keypad Lock: To prevent accidental presses, lock the keypad. Consult the on-screen prompts or the phone's internal menu for specific instructions.
5.2. Special Features
- Flashlight: The phone features a powerful LED flashlight. Press the dedicated orange hardware button to instantly turn the flashlight on or off. This allows for quick illumination without navigating through menus.
- FM Radio: To use the FM radio, connect a 3.5mm jack headset (not included) as it acts as the antenna. Navigate to the "FM Radio" application in the phone's menu to scan for stations and listen.
- Large Rubberized Buttons: The phone is equipped with large, rubberized buttons that provide a clear pressure point, making them easy to operate even when wearing work gloves or with cold fingers.

Figure 5.1: Useful Features. This image highlights the integrated FM Radio and the 3.5mm mini jack for headphones, enhancing the phone's utility.
6. Maintenance
- Cleaning: Use a soft, damp cloth to clean the phone's exterior. Avoid harsh chemicals or abrasive materials. Ensure all ports are closed before cleaning to maintain water resistance.
- Water and Dust Resistance (IP68): The phone is rated IP68, meaning it is protected against dust ingress and can withstand immersion in water up to 1.5 meters for 30 minutes. Ensure all port covers and the back cover are securely closed before exposing the phone to water or dust. Do not intentionally submerge the phone. If the phone gets wet, dry it thoroughly before charging.
- Temperature: Avoid exposing the phone to extreme temperatures (very hot or very cold) as this can affect battery life and overall performance.
- Storage: When not in use for extended periods, store the phone in a cool, dry place.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Phone does not power on. | Battery is depleted or not properly inserted. | Charge the battery. Ensure the battery is correctly installed. |
| Cannot make or receive calls. | No SIM card, SIM card not properly inserted, or no network signal. | Ensure SIM card(s) are correctly inserted. Check network coverage. Contact your service provider if issues persist. |
| Battery drains quickly. | Heavy usage, poor network signal, or background processes. | Reduce screen brightness. Close unused applications. Charge the phone fully. |
| Flashlight not working. | Software glitch or hardware issue. | Restart the phone. If the issue persists, contact support. |
| Phone not charging. | Faulty cable, adapter, or port. | Try a different USB-C cable and power adapter. Ensure the charging port is clean and free of debris. |
8. Specifications
| Feature | Detail |
|---|---|
| Brand | Hammer H |
| Model Name | Forge |
| Operating System | Other |
| RAM Memory Size | 32 MB |
| CPU Model | ARMv7 |
| Storage Capacity | 32 GB (internal, likely for system/basic apps, expandable via microSD) |
| Screen Size | 2.4 Inches |
| Resolution | 240 x 320 Pixels |
| Wireless Carrier | All carriers (unlocked) |
| Cellular Technology | 2G |
| Color | Black |
| SIM Card Slots | Dual SIM |
| Connector Type | USB-C |
| Form Factor | Bar |
| SIM Card Format | Nano |
| Water Resistance Level | Waterproof (IP68) |
| Headphone Jack | 3.5 mm |
| Max Supported Flash Memory | 32 GB (MicroSD) |
| Rear Camera Resolution | 2 MP |
| Battery Capacity | 2300 mAh |
| Average Battery Life (Standby) | 1035 Hours (approx. 43 days) |
| Talk Time | 10.35 Hours |
| Item Weight | 174.7 Grams |
| Item Dimensions | 13.8 x 6.4 x 1.9 cm |
| Screen Type | TFT |
| Connectivity Technology | Bluetooth |
| Model Year | 2025 |
| Country of Origin | Poland |
| Specific Product Uses | Construction sites, Outdoor activities, Professional work |
Note on Cellular Technology: While the product title includes "LTE", the detailed specifications list "2G" for cellular technology. Please verify network compatibility with your service provider if LTE connectivity is a requirement.
9. Warranty Information
The Hammer H Forge Power Plus LTE comes with a 2-year manufacturer's warranty. Please retain your proof of purchase for warranty claims. For detailed terms and conditions, refer to the warranty card included with your product or visit the manufacturer's official website.
10. Support
For further assistance, technical support, or to find more information about your Hammer H Forge Power Plus LTE phone, please visit the official Hammer H website:
You can also find additional resources and product details on the main Hammer H website: hammerphones.com
Manufacturer: mPTech Sp. z o.o., ul. Nowogrodzka 31, 00-511 Warszawa, Polska/Poland

Figure 10.1: Product Label. This image shows the product label with model number (HF2508, HF2508e), IMEI numbers, SAR values, and manufacturer information. The QR code links to more information.