RemoteOverstock CR2025
Instruction Manual: CR2025 Lithium Coin Cell Battery Kit
Model: CR2025 | Brand: RemoteOverstock
Product Overview
This kit provides two (2) CR2025 3V lithium coin cell batteries, commonly used as replacements for keyless entry remotes, smart keys, flip keys, and proximity key fobs. An opening/pry tool is included to facilitate the battery replacement process. These batteries are designed for easy installation and typically do not require remote reprogramming after replacement.

Image: Two CR2025 lithium coin cell batteries, individually sealed in blister packaging, alongside a small opening tool. The packaging indicates "RemoteOverstock" and highlights the 3V 220mAh High Capacity.
Setup and Installation
Follow these steps to replace the battery in your keyless entry remote or key fob. The exact procedure may vary slightly depending on your specific remote model. Refer to your vehicle's owner's manual or the remote's specific instructions if available.
- Prepare Your Workspace: Ensure you have a clean, well-lit area.
- Locate the Seam: Identify the seam or opening point on your key fob. This is often where the two halves of the remote meet.
- Open the Key Fob:
Carefully insert the included opening/pry tool into the seam. Gently twist or pry the tool to separate the two halves of the key fob. Apply steady, even pressure to avoid damaging the casing. Some remotes may have a small screw that needs to be removed first.
- Remove the Old Battery:
Once the key fob is open, locate the existing CR2025 battery. Note its orientation (which side is facing up, usually the positive (+) side). Use the pry tool or a small non-metallic object to gently lift the old battery out of its compartment. Avoid touching the circuit board with bare hands to prevent static discharge.
- Insert the New Battery:
Take one of the new RemoteOverstock CR2025 batteries from its sealed packaging. Insert the new battery into the compartment, ensuring the positive (+) side faces the same direction as the old battery. The battery should fit snugly.
- Reassemble the Key Fob:
Align the two halves of the key fob and gently press them together until they click securely into place. If there was a screw, reinsert and tighten it.
- Test the Remote:
Test the functionality of your key fob by attempting to lock and unlock your vehicle. Remote reprogramming is generally not required after battery replacement for most key fobs.
Operating Characteristics
The RemoteOverstock CR2025 batteries are 3-volt lithium coin cells designed for reliable performance in low-drain devices like key fobs. They offer a stable voltage output throughout their lifespan, ensuring consistent signal transmission from your remote.
- Voltage: 3 Volts
- Capacity: Approximately 220mAh (typical for CR2025)
- Chemistry: Lithium Manganese Dioxide (Li-MnO2)
- Shelf Life: Guaranteed fresh with a long shelf life of 7-10 years until expiry when stored properly.
Maintenance and Storage
Proper handling and storage will ensure the longevity and performance of your CR2025 batteries.
- Storage: Store unused batteries in their original sealed packaging in a cool, dry place away from direct sunlight and extreme temperatures.
- Handling: Avoid touching the battery terminals with bare hands, as oils and moisture can affect performance. Use gloves or handle by the edges.
- Disposal: Dispose of used batteries according to local regulations. Many communities have battery recycling programs. Do not dispose of batteries in household waste or incinerate them.
- Keep Away from Children: Coin cell batteries can be dangerous if swallowed. Keep them out of reach of children and pets. If swallowed, seek immediate medical attention.
Troubleshooting
If your key fob does not function after replacing the battery, consider the following:
- Battery Orientation: Double-check that the new battery is inserted with the correct polarity (positive (+) side facing the correct direction).
- Secure Connection: Ensure the battery is seated firmly in its compartment and making good contact with the terminals.
- Key Fob Reassembly: Verify that the key fob casing is fully closed and secured.
- Remote Reprogramming: While generally not required, some specific vehicle models or aftermarket remotes might require a simple reprogramming procedure after battery replacement. Consult your vehicle's owner's manual for details.
- Remote Malfunction: If the issue persists, the key fob itself might be faulty, or there could be an issue with the vehicle's receiver.
Specifications
| Attribute | Detail |
|---|---|
| Brand | RemoteOverstock |
| Model Number | CR2025 (RO-BATT-2025) |
| Battery Type | Lithium Coin Cell |
| Voltage | 3 Volts |
| Item Weight | 10 g (total for 2 batteries) |
| Parcel Dimensions | 10.7 x 7 x 0.7 cm |
| Country of Origin | Indonesia |
| Recommended Use | Keyless Entry Remotes |
Warranty and Support
This product is covered by a return policy allowing for refund or replacement within 30 days of purchase. For specific warranty claims or technical support, please contact RemoteOverstock directly through their official channels or the retailer where the product was purchased.
For further assistance, please visit the RemoteOverstock website or refer to your purchase documentation for contact information.