1. Introduction
This manual provides instructions for the safe and proper installation and use of the WirelessFinest 300-10186 replacement battery for ADT Command Smart Security Panels and Honeywell ADT 2X16 AIO Home Security System Keypads. Please read all instructions carefully before proceeding with installation.

Image 1.1: WirelessFinest 300-10186 replacement battery, compatible with ADT security panels, shown with an included screwdriver for installation.
2. Compatibility
It is crucial to verify your system's compatibility before installing this replacement battery. This battery is designed specifically for certain ADT Command Smart Security Panels and Honeywell ADT 2X16 AIO Home Security System Keypads. It is a main system backup battery replacement, not a sensor battery.
- Compatible ADT Security Panel Models:
- ADT Command 5" Touchscreen Panels: ADT5AIO-1, ADT5AIO-2, ADT5AIO-3
- ADT Command 7" Touchscreen Panel: ADT7AIO-1
- Honeywell ADT 2X16 AIO Panels: ADT2X16AIO-1, ADT2X16AIO-2
- Original Battery Part Number: This replacement battery is compatible with original battery part number 300-10186.
- Connector Type: Ensure your original battery has a 3-pin connector.
- Battery Function: This battery replaces the main system backup battery. If your system alert indicates "SYSTEM LO BAT" or shows no zone number, this is the correct replacement. If the alert includes a zone number, it indicates a specific wireless sensor battery, which this product is not designed to replace.

Image 2.1: Visual guide for checking system and battery compatibility, highlighting specific ADT and Honeywell models.

Image 2.2: Verification of the 3-pin connector and original battery model number 300-10186.
3. Safety Information
This battery is designed with multiple circuit protections to ensure stability and safety during operation. However, proper handling and installation are essential.
- Certifications: The product is CE, FCC, PSE, and RoHS safety certified.
- Built-in Protections: Includes over-charge, over-discharge, over-voltage, over-current, and over-heating protection.
- Caution: Risk of explosion if the battery is replaced by an incorrect type.
- Disposal: Dispose of used batteries according to local regulations and instructions.
- Warning: Do not disassemble, short circuit, or dispose of the battery in fire.

Image 3.1: Overview of the battery's reliable and safe performance features.
4. Installation Guide
This replacement battery features a built-in connector for a straightforward, do-it-yourself installation. No soldering is required.
- Step 1: Remove the Phillips Head Screw
Locate and remove the Phillips head screw at the bottom center of your ADT security panel. - Step 2: Slide Up the Face Panel
Gently slide the outside face panel of the security system upwards to remove it. - Step 3: Secure the Front Panel
Use the built-in strap on the panel to hold the front panel in place by inserting it into the available hook. This prevents the panel from falling during battery replacement. - Step 4: Replace the Battery
Remove any screws securing the battery cover. Unplug the old battery's connector, carefully remove the old battery, and then insert the new WirelessFinest battery. Connect the new battery using its built-in connector. Ensure the connection is secure.

Image 4.1: Step-by-step installation guide for the replacement battery.
5. Operating Instructions
After installing the new battery, it is essential to allow sufficient time for it to charge fully.
- Initial Charge: Once installed, allow the battery to charge within the security system keypad for a minimum of 24 hours. For optimal performance and to clear any low battery alerts, a charging period of up to 48 hours may be necessary.
- Normal Operation: The security panel will automatically manage the battery's charging and discharging cycles.
6. Maintenance
The WirelessFinest 300-10186 battery is designed for long-lasting performance and requires minimal maintenance.
- Regular Checks: Periodically check your security panel for any low battery alerts. The lifespan of a battery can vary based on usage and environmental factors.
- Cleaning: Keep the battery compartment clean and free of dust or debris.
- Storage: If storing the battery for an extended period, ensure it is partially charged (around 50%) and stored in a cool, dry place away from direct sunlight and extreme temperatures.
7. Troubleshooting
If you encounter issues after installing the replacement battery, consider the following:
- Battery Not Charging / Low Battery Alert Persists:
- Ensure the battery connector is fully and correctly seated in the security panel's port.
- Verify that the battery has been allowed sufficient time (24-48 hours) to charge after installation.
- Confirm that the security panel itself is receiving power.
- Battery Does Not Fit:
- Double-check the compatibility section (Section 2) to ensure your security panel model and original battery part number match the specifications.
- Ensure the original battery had a 3-pin connector.
- System Malfunction After Installation:
- Re-verify all connections.
- If issues persist, contact customer support or a qualified technician.
8. Specifications
| Feature | Specification |
|---|---|
| Brand | WirelessFinest |
| Model Number | 300-10186 |
| Battery Type | Lithium-Ion |
| Nominal Voltage | 3.6 Volts |
| Charge Voltage | 4.2 Volts |
| Energy / Capacity | 28 Watt-hours / 7800 mAh |
| Dimensions (L x W x H) | 3 x 2 x 0.5 inches |
| Item Weight | 5.6 ounces |
| Connector Type | Built-in 3-pin connector |
| Certifications | CE, FCC, PSE, RoHS |
| UPC | 850049440158 |

Image 8.1: Key specifications and features of the WirelessFinest 300-10186 battery.
9. Warranty and Support
WirelessFinest stands behind the quality of its products.
- Warranty: This product comes with a 120-day money-back guarantee or a 12-month free replacement warranty.
- Customer Support: For any questions, concerns, or warranty claims, please refer to the contact information provided with your purchase or visit the WirelessFinest store on Amazon.