1. Product Overview
The Casil CA1208 is a 12V 0.8Ah Sealed Lead Acid (SLA) rechargeable battery designed for various applications. This battery features Absorbent Glass Mat (AGM) technology, making it spill-proof, maintenance-free, and resistant to leaks. It is engineered for high discharge rates, wide operating temperatures, long service life, and deep discharge recovery. The CA1208 is a direct replacement for models such as Universal Battery UB1208, PS 1208, NP0.8 12, UT 1208, DJW12 0.8, and CP1208.
It is suitable for use in home alarm systems, kids' remote control cars, toys, and other devices requiring a reliable 12V 0.8Ah power source.

Image 1: Casil CA1208 12V 0.8Ah Sealed Lead Acid Rechargeable Replacement Battery.
2. Safety Information
Please read and understand all safety warnings before handling or installing the battery.
- CAUTION: Do not short the battery terminals.
- CAUTION: Do not charge in a sealed container.
- CAUTION: Recharge after use.
- CAUTION: This battery is non-spillable.
- WARNING: Risk of fire, explosion, or burns. Do not disassemble.
- WARNING: Do not heat above 60°C (140°F) or incinerate.

Image 2: Safety warnings and precautions for the Casil CA1208 battery.
3. Setup and Installation
The Casil CA1208 battery comes with a plug terminal for easy connection. Ensure the battery dimensions are compatible with your device's battery compartment before installation.
- Verify Compatibility: Confirm that your device requires a 12V 0.8Ah SLA battery with a plug terminal.
- Power Off Device: Before installation, ensure the device is completely powered off and disconnected from any power sources.
- Remove Old Battery: Carefully remove the existing battery from your device. Note the orientation of the terminals.
- Connect New Battery: Connect the plug terminal of the Casil CA1208 battery to the corresponding port in your device. Ensure a secure connection. If the connector type differs, professional modification of the connector may be required.
- Secure Battery: Place the new battery securely in the compartment. This battery can be mounted in any position.
- Initial Charge: It is recommended to fully charge the battery before its first use, even though it is pre-charged for immediate use.

Image 3: Dimensions of the Casil CA1208 battery for fitment verification.
4. Operating Instructions
Once installed, the Casil CA1208 battery will provide power to your compatible device. For optimal performance and longevity, follow these guidelines:
- Regular Recharging: Recharge the battery after each use to maintain its capacity and extend its lifespan. Use a charger compatible with 12V Sealed Lead Acid batteries.
- Avoid Deep Discharge: While the battery has good deep discharge recovery, consistently draining it completely can reduce its overall lifespan.
- Temperature: Operate the battery within its specified temperature range for best performance. It offers long-lasting high performance in high and low temperatures.
Video 1: Overview of the Casil 12V 0.8Ah battery, demonstrating its features and applications.
5. Maintenance
The Casil CA1208 is a maintenance-free battery. No refilling or special maintenance procedures are required. However, consider the following for optimal care:
- Clean Terminals: Periodically inspect the terminals for corrosion and clean them if necessary to ensure good electrical contact.
- Storage: If storing the battery for an extended period, ensure it is fully charged and store it in a cool, dry place. Recharge every 3-6 months to prevent self-discharge.
- Physical Inspection: Regularly check the battery casing for any signs of damage, swelling, or leaks. Discontinue use if any damage is observed.
Video 2: Detailed look at the Casil 12V 0.8Ah Deep Cycle Battery, highlighting its construction and benefits.
6. Troubleshooting
If you encounter issues with your Casil CA1208 battery, consider the following common troubleshooting steps:
- Battery Not Holding Charge:
- Ensure the charger is functioning correctly and is compatible with 12V SLA batteries.
- Check for proper connection between the battery and the charger.
- The battery may have reached the end of its service life.
- Device Not Powering On:
- Verify the battery is fully charged.
- Check all connections to ensure they are secure and correctly oriented.
- Inspect the device's internal wiring and components for any faults.
- Confirm the battery's plug terminal is compatible with the device's connector. Some devices may require a connector swap.
- Reduced Performance:
- Ensure the battery is regularly recharged and not consistently deep-discharged.
- Operating in extreme temperatures (outside recommended range) can affect performance.
- The battery may be aging and its capacity naturally decreasing.
If issues persist after troubleshooting, contact customer support or a qualified technician.
7. Specifications
| Feature | Detail |
|---|---|
| Model Number | CA1208 |
| Voltage | 12 Volts |
| Capacity | 0.8 Amp Hours (0.8Ah) |
| Battery Cell Composition | Lead Acid (SLA / AGM) |
| Terminal Type | Plug Terminal |
| Dimensions (L x W x H) | 3.78 x 0.98 x 2.44 Inches |
| Weight | Approximately 1.5 LBS (0.68 kg) |
| Reusability | Rechargeable |
| Life Cycle | 300+ Cycles |
| Manufacturer | Chee Yuen Industrial Co., Ltd |

Image 4: Key specifications of the Casil CA1208 battery.
8. Warranty and Support
Warranty: The Casil CA1208 battery comes with a 1-year prorated warranty from the manufacturer, Chee Yuen Industrial Co., Ltd. Please retain your proof of purchase for warranty claims.
Customer Support: For technical assistance, warranty inquiries, or further questions, please refer to the contact information provided with your purchase or visit the official Casil website. When contacting support, please have your product model number (CA1208) and purchase details available.