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Luminous Red Charge RC 18000ST 150Ah Short Tubular Inverter Battery
ಪಿಕಪ್ ಲಭ್ಯತೆಯನ್ನು ಲೋಡ್ ಮಾಡಲು ಸಾಧ್ಯವಾಗಲಿಲ್ಲ
The Luminous Red Charge RC 18000ST powers your home seamlessly through extended outages with one of India's most trusted backup power lineups. It combines high-grade spine alloy grids with advanced tubular technology to deliver rapid charging, minimal water topping, and heavy-duty load handling.
Built in a space-saving Short Tubular (ST) design, this 150Ah battery gives you high backup capacity without the taller footprint of a Tall Tubular unit — ideal for homes with compact battery trolleys or restricted storage height, without compromising on load handling.
| Specification | Details |
|---|---|
| Nominal Voltage | 12V |
| Battery Capacity | 150 Ah |
| Technology | Short Tubular |
| Warranty Breakdown | 18 Months Free Replacement + 18 Months Pro-Rata |
| Dimensions (L x W x H) | 50.5 x 22.0 x 30.8 cm |
| Filled Weight (Approx.) | ~43.5 kg |
| Water Level Indicators | 6 Float Indicators |
| Best Suited For | Compact Areas / Medium-Heavy Loads |
| Warranty | 36 Months Total |
The primary difference lies in physical shape and acid volume distribution. This Short Tubular (ST) design is wider and shorter, making it highly compact and easy to fit inside small apartments or standard storage trolleys. A Tall Tubular battery of the same 150Ah rating is taller and narrower, holding a larger volume of acid above the plates for superior thermal management and slightly better endurance during very long, continuous outages — at the cost of needing more vertical clearance.
Yes, absolutely. This battery operates on standard 12V DC architecture, so upgrading from a 120Ah battery to this 150Ah unit simply means your inverter will deliver a longer backup duration for the exact same connected electrical load. Just ensure your existing inverter supports a 12V single-battery setup.
Backup time directly depends on the total wattage of your running appliances. On a typical load of 3 Fans, 3 LED Bulbs, and 1 LED TV (approx. 300W–350W), the RC 18000ST (150Ah) provides roughly 4.5 to 5 hours of continuous backup.
Luminous also sells a "PRO" grade 120Ah battery with a premium grid and chemical formulation carrying an extended 48-month warranty. This RC 18000ST is optimized instead for higher-capacity raw output at 150Ah, and carries a competitive 36-month warranty cycle (18 months free replacement + 18 months pro-rata) — a standard, well-supported term for a higher-Ah tubular battery.
Thanks to the high-quality spine alloy composition that reduces water loss, this battery typically requires water topping only once every 3 to 6 months, depending on your local climate and usage frequency. Monitor the 6 red-and-green float indicators on top of the battery; when the green indicator dips toward the red line, it's time to top up with pure distilled water.

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