Introduction
This manual provides essential information for the proper use, installation, and maintenance of your Socket SoMo 650/655 Extended Lithium-Ion Battery. This OEM battery is designed to fit all Socket SoMo 650 and 655 series devices and includes a compatible battery door/cover. Please read this manual thoroughly before using the product.
Product Overview

Image: The Socket SoMo 650/655 Extended Battery shown with its accompanying battery door/cover. The battery is a rectangular black unit, and the cover is designed to fit over it, often featuring the 'socket' logo.
The Socket SoMo 650/655 Extended Battery is a rechargeable Lithium-Ion battery with a capacity of 2600 mAh and a voltage of 3.7 Volts. It is specifically designed as an OEM replacement or upgrade for Socket SoMo 650 and 655 series devices, providing extended operational time. The package includes the battery and a new battery door/cover to accommodate the extended size.
Setup and Installation
- Preparation: Ensure your Socket SoMo 650 or 655 device is powered off before beginning the installation process.
- Remove Old Battery (if applicable): Locate the existing battery compartment on your device. Carefully remove the current battery door/cover and then the old battery.
- Insert New Battery: Align the contacts of the new Socket SoMo 650/655 Extended Battery with the contacts inside the device's battery compartment. Gently push the battery into place until it is seated securely.
- Attach New Battery Door/Cover: Place the provided extended battery door/cover over the battery compartment. Ensure all clips or latches engage properly to secure the cover. Apply gentle pressure until it clicks into place.
- Initial Charge: It is recommended to fully charge the new battery before its first use. Connect your device to its original charger and allow it to charge until the charging indicator shows a full charge.
Operating Instructions
This extended battery functions identically to the standard battery in your Socket SoMo device, but provides a longer operational duration due to its increased capacity.
- Charging: Use only the original Socket charger or a compatible charger specified for your SoMo device. Overcharging or using incompatible chargers can damage the battery and device.
- Discharging: The battery will discharge during normal device operation. For optimal battery life, avoid completely draining the battery frequently.
- Temperature: Operate your device and battery within the recommended temperature range specified by Socket. Extreme temperatures can affect battery performance and lifespan.
Maintenance
- Regular Charging: Charge the battery regularly, even if the device is not in constant use, to maintain its health.
- Storage: If storing the battery for an extended period, ensure it is charged to approximately 50-70% and stored in a cool, dry place away from direct sunlight and extreme temperatures.
- Cleaning: Keep the battery contacts clean and free of dust or debris. Use a dry, soft cloth to wipe the contacts if necessary.
- Avoid Physical Damage: Do not drop, puncture, or expose the battery to excessive force. Physical damage can lead to internal short circuits or leakage.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Battery not charging | Loose connection, faulty charger, dirty contacts, battery fault. | Ensure charger is properly connected. Try a different compatible charger. Clean battery and device contacts. If problem persists, the battery or device may require service. |
| Battery drains quickly | High device usage, background applications, aging battery, extreme temperatures. | Reduce device usage, close unnecessary applications. Ensure battery is fully charged. Avoid using device in extreme hot or cold conditions. If battery is old, consider replacement. |
| Device does not power on with new battery | Battery not properly seated, battery not charged, device fault. | Re-seat the battery firmly. Ensure the battery has an initial charge. Test with a known working battery if available. |
Specifications
- Model Number: 650e m
- Battery Cell Composition: Lithium Ion
- Battery Capacity: 2600 Milliampere Hour (mAh)
- Voltage: 3.7 Volts
- Reusability: Rechargeable
- Unit Count: 1 Count
- Manufacturer: Socket
- ASIN: B004Y3DF8S
Warranty and Support
For specific warranty information regarding your Socket SoMo Extended Battery, please refer to the documentation provided with your original Socket device or visit the official Socket website. Warranty terms typically cover manufacturing defects.
For technical support, product inquiries, or service, please contact Socket customer support directly. You can usually find contact information on the manufacturer's official website:





