1. Introduction
This manual provides essential information for the safe and efficient use of your Luminous Red Charge RC 25000 Tall Tubular Inverter Battery. Please read these instructions carefully before installation and operation. Proper installation and maintenance will ensure optimal performance and longevity of your battery.

Figure 1: Luminous Red Charge RC 25000 Tall Tubular Inverter Battery.
2. Safety Instructions
Always observe the following safety precautions to prevent injury or damage to the battery and surrounding equipment:
- Wear Protective Gear: Always wear safety glasses and gloves when handling the battery or electrolyte.
- Ventilation: Ensure adequate ventilation in the area where the battery is installed. Batteries produce hydrogen gas, which is flammable.
- No Smoking/Open Flames: Keep sparks, flames, and smoking materials away from the battery.
- Avoid Short Circuits: Do not place tools or metal objects on the battery. Ensure terminals are properly insulated.
- Electrolyte Handling: Battery electrolyte is corrosive sulfuric acid. Avoid contact with skin, eyes, or clothing. In case of contact, flush immediately with water and seek medical attention.
- Children and Pets: Keep batteries out of reach of children and pets.
- Proper Disposal: Dispose of old batteries responsibly at designated collection centers.
3. Product Features
The Luminous Red Charge RC 25000 battery is designed for reliable and efficient power backup. Key features include:
- Tall Tubular Design: Provides long backup and enhanced performance.
- High Capacity: 200 Ah rating ensures extended power supply.
- Low Maintenance: Designed for minimal upkeep with 6 water level indicators.
- Advanced Tubular-Plate Technology: For durability and efficiency.
- Excellent Overcharge Tolerance: Ensures battery longevity.
- Overload Protection: Features auto-reset for safety.
- Fast Charging: Adaptive battery charging control technology for quicker recharge.

Figure 2: Key features of the Luminous Red Charge RC 25000 battery.
4. Setup and Installation
Follow these steps for proper installation of your Luminous Red Charge RC 25000 battery:
- Unpacking: Carefully remove the battery from its packaging. Inspect for any physical damage.
- Placement: Place the battery on a flat, stable, and well-ventilated surface. Ensure it is away from direct sunlight, heat sources, and flammable materials.
- Electrolyte Filling (if applicable): If the battery is supplied dry, fill each cell with distilled water or battery-grade electrolyte up to the specified level. Use a funnel to avoid spillage.
- Terminal Connections: Connect the positive (+) terminal of the battery to the positive (+) terminal of the inverter and the negative (-) terminal of the battery to the negative (-) terminal of the inverter. Ensure connections are tight and secure.
- Ventilation Caps: Ensure all 6 ventilation caps are securely in place after filling electrolyte.
Video 1: Unboxing and initial inspection of the Luminous Red Charge RC 25000 battery, showing water level indicators and caps.

Figure 3: Battery design highlighting 6 water level indicators and openable MS fasteners for easy water filling.
5. Operation
Once installed, the Luminous Red Charge RC 25000 battery operates automatically with a compatible inverter. The inverter will charge the battery when mains power is available and switch to battery power during outages. Ensure the inverter is switched on for continuous power backup.
The battery is designed for heavy-duty applications and provides superior performance during long and frequent power cuts.
6. Maintenance
Regular maintenance is crucial for extending the life of your battery:
- Check Water Levels: Periodically check the electrolyte levels in each cell using the 6 water level indicators. Maintain the level between the minimum and maximum marks.
- Top-Up with Distilled Water: If the electrolyte level is low, add only distilled water. Do not add tap water or acid.
- Keep Clean: Keep the battery top and terminals clean and free from dust and corrosion. Use a damp cloth to wipe the battery surface.
- Terminal Cleaning: If corrosion appears on the terminals, clean them with a wire brush and apply petroleum jelly to prevent further corrosion.
- Ventilation: Ensure the battery area remains well-ventilated to dissipate gases.
7. Troubleshooting
Refer to the table below for common issues and their potential solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Battery not charging | Loose connections, inverter fault, low electrolyte level | Check terminal connections, inspect inverter, top-up electrolyte with distilled water. |
| Short backup time | Overloading, aged battery, low electrolyte level | Reduce load, check battery age, top-up electrolyte. Consider battery replacement if old. |
| Corrosion on terminals | Acid fumes, improper connection | Clean terminals with wire brush, apply petroleum jelly, ensure tight connections. |
| Unusual smell or swelling | Overcharging, internal damage | Immediately disconnect the battery and contact customer support. Do not attempt to fix. |
8. Specifications
Detailed technical specifications for the Luminous Red Charge RC 25000 Inverter Battery:
| Specification | Value |
|---|---|
| Brand | Luminous |
| Model Name | RC 25000 |
| Battery Type | Tall Tubular Inverter Battery |
| Battery Cell Composition | Lead Acid |
| Nominal Voltage | 12 Volts |
| Battery Capacity | 200 Ah |
| Electrolyte Volume | 19.90 Liters |
| Dry Battery Weight | 34.3 kg |
| Filled Battery Weight | 59.0 kg |
| Dimensions (L x W x H) | 502mm x 191mm x 440mm |
| Reusability | Rechargeable |
| Water Level Indicators | 6 |
| Fasteners for Water Filling | 6 Openable MS Fasteners |
9. Warranty and Support
Your Luminous Red Charge RC 25000 battery comes with a comprehensive warranty to ensure peace of mind:
- Warranty Period: 36 months from the date of purchase.
- Coverage: Includes 18 months of replacement and 18 months of pro-rata coverage for manufacturing defects.
For any queries, product information, or service requests, please contact Luminous customer support:
- Toll-Free Number: 18001033039
- WhatsApp No.: +91-7042833939
- Email: care@luminousindia.com

Figure 4: Luminous customer support and service network across India.