1. Product Overview
The Beiter DC Power SY 1250A 12V5AH is a high-quality, non-spillable, sealed lead-acid (SLA) battery designed for reliable power delivery. This battery is maintenance-free and valve-regulated, ensuring safe and trouble-free operation in various applications. Its rugged construction features a high impact-resistant ABS plastic case, providing strong resistance to shock, vibration, chemicals, and heat.

Image 1: Front view of the Beiter DC Power SY 1250A 12V5AH Sealed Lead-Acid Battery, showing specifications and warnings.
Key features include:
- Genuine Beiter DC Power Battery: A trusted sealed lead-acid battery.
- Battery Type: 20 Hour Sealed Lead Acid Battery.
- Maintenance-Free and Valve-Regulated: Designed for ease of use and safety.
- Rugged Construction: High impact-resistant ABS plastic case for durability against shock, vibration, chemicals, and heat.
- Spill-Proof Design: Allows for safe operation in any orientation due to a fine fiberglass mat and valve-regulated design.
2. Setup and Installation
Before installation, ensure the battery is fully charged. Always handle the battery with care to prevent damage to the terminals or casing.
- Inspect the Battery: Check for any physical damage, cracks, or leaks. Do not use a damaged battery.
- Prepare the Installation Area: Ensure the area is clean, dry, and well-ventilated. Avoid enclosed spaces where gases could accumulate.
- Connect Terminals: Connect the positive (+) terminal of the battery to the positive lead of your device/system, and the negative (-) terminal to the negative lead. Ensure connections are secure and tight to prevent arcing or poor performance.
- Verify Polarity: Double-check that the polarity is correct before applying power to your system. Incorrect polarity can cause severe damage to the battery and connected equipment.
- Secure the Battery: Place the battery in a stable position to prevent movement or tipping during operation.
This battery is non-spillable and can operate in any orientation; however, proper ventilation is always recommended during charging.
3. Operating Instructions
The SY 1250A 12V5AH battery is designed for both standby and cyclic use. Adhering to the recommended charging parameters is crucial for optimal performance and longevity.
Charging Parameters:
| Usage Type | Constant Voltage Charge (Voltage Regulation) | Initial Current |
|---|---|---|
| Standby Use | 13.6 - 13.8V | 0.75A |
| Cyclic Use | 14.5 - 14.9V | 1.5A |
Always use a charger specifically designed for sealed lead-acid batteries that matches these voltage and current specifications.
4. Maintenance
While this battery is maintenance-free, following these guidelines will help extend its lifespan and ensure reliable operation:
- Replacement Schedule: It is recommended to replace the battery every 3-5 years, depending on usage and environmental conditions.
- Avoid Total Discharging: Damage to the battery occurs if it is discharged below 10.5V. Always recharge the battery promptly after use, especially if it has been deeply discharged.
- Storage: Store the battery in a cool, dry place. If storing for extended periods, ensure it is fully charged and periodically check its voltage, recharging as necessary to prevent deep discharge.
- Cleaning: Keep the battery terminals and casing clean and free from dirt or corrosion. Use a dry cloth for cleaning.
- Ventilation: Do not charge the battery in a sealed container or unventilated area. Although non-spillable, proper ventilation helps dissipate any minimal gases produced during charging.
5. Troubleshooting
If you encounter issues with your Beiter DC Power battery, consider the following common troubleshooting steps:
- Battery Not Holding Charge:
- Ensure the charger is functioning correctly and matches the recommended voltage/current.
- Check for proper terminal connections; loose connections can prevent charging.
- The battery may have reached the end of its service life (typically 3-5 years) or suffered damage from deep discharge.
- Reduced Runtime:
- Verify the battery is fully charged before use.
- Check the load on the battery; excessive load can reduce runtime.
- Battery capacity may have degraded over time.
- Overheating During Charge:
- Ensure the charger's voltage and current settings are within the specified range for standby or cyclic use.
- Confirm adequate ventilation around the battery during charging.
- If overheating persists, discontinue use and consult a professional.
- No Power Output:
- Check all connections for tightness and correct polarity.
- Verify the battery is charged.
- Ensure the connected device is functioning correctly.
If these steps do not resolve the issue, contact Beiter DC Power customer support for further assistance.
6. Specifications
| Specification | Value |
|---|---|
| Model | SY 1250A 12V5AH |
| Brand | Beiter DC Power |
| Battery Type | Sealed Lead-Acid (SLA) |
| Voltage | 12V |
| Capacity | 5AH (20 Hour Rate) |
| Battery Cell Composition | Lead Acid |
| Reusability | Rechargeable |
| Manufacturer | Beiter DC Power |
| Made In | China |
7. Safety Warnings
Read and understand all safety warnings before handling or operating the battery. Failure to follow these instructions may result in serious injury or property damage.
- Risk of Fire: Explosion or Burns.
- Do Not Disassemble: Do not disassemble or heat the battery above 65°C (149°F) or incinerate.
- Do Not Short Circuit: Avoid short-circuiting the battery terminals.
- Transportation: Classified as DOT Class 60 dry cell. Meets air transportation requirements under title 49CFR173.159(d) and special provision A67 as decreed by IATA and ICAO.
- Proposition 65 Warning: This product contains or emits chemicals known to the state of California to cause cancer and birth defects or other reproductive harm.
- Avoid Total Discharging: Damage is done to the battery if discharged below 10.5V.
- Charging Environment: Do not charge in a sealed container. Ensure adequate ventilation.
8. Warranty and Support
A limited warranty applies to this product. For specific warranty terms and conditions, please refer to the documentation provided with your purchase or contact Beiter DC Power directly.
For technical support, troubleshooting assistance, or warranty claims, please contact Beiter DC Power customer service. You can find contact information on the official Beiter DC Power website or through your point of purchase.
Manufacturer: Beiter DC Power
Date First Available: July 21, 2015