Best Inverter & UPS Battery Price Guide in Kolkata (2026)
Frequent power cuts make an inverter and battery backup essential for most Kolkata and Howrah households and businesses. This guide breaks down inverter types, battery options, and indicative pricing to help you choose the right backup power system.
How an Inverter System Works
An inverter system stores electricity in a battery while grid power is available, then converts stored DC power to AC to run your appliances during a power cut. The two main components are the inverter (power conversion unit) and the battery (energy storage).
Types of Inverters
Square Wave Inverters
Basic and economical, but not ideal for sensitive electronics — largely being phased out in favor of sine wave models.
Sine Wave / Pure Sine Wave Inverters
Produce clean power output similar to grid electricity, safe for running fans, lights, TVs, computers, and other sensitive appliances without damage.
Types of Batteries
Flat Plate (Standard) Batteries
Affordable option, moderate backup time, requires periodic water top-up for maintenance.
Tubular Batteries
Longer battery life and better backup duration compared to flat plate batteries, widely preferred for homes with frequent power cuts.
Tall Tubular Batteries
Higher capacity and longer service life, suited for homes needing extended backup for multiple appliances.
Indicative Inverter & Battery Price Range in Kolkata
Prices vary by brand (Luminous, Microtek, Exide, Amaron) and capacity. Contact us for the latest rates.
*Approximate ranges depending on brand and warranty period — confirm today's price with us for accurate budgeting.
How to Choose the Right Inverter Capacity
Inverter VA rating should match your total connected load (lights, fans, TV, router, etc.). As a rough guide:
- 650-850VA — 3-4 lights, 2-3 fans, TV
- 1100-1500VA — Adds a computer/router and more points
- 2000VA+ — Larger homes or setups needing higher backup load
Our technicians calculate your actual load before recommending inverter and battery capacity to avoid overspending or underpowering your backup.
Battery Maintenance Tips
- Check water level in flat plate/tubular batteries every 2-3 months (except maintenance-free types)
- Keep the battery area well-ventilated
- Avoid deep-discharging the battery repeatedly to extend its life
- Get terminals cleaned periodically to prevent corrosion
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- Electrical Installation Services

Frequently Asked Questions
How long does a tubular battery last?
With proper maintenance, tubular batteries typically last around 4-5 years, though actual life depends on usage pattern and power cut frequency.
Can an inverter run an AC?
Standard home inverters are generally not designed for ACs due to high power draw — this needs a much higher capacity system, which we can advise on separately.
Is sine wave better than square wave for home use?
Yes, pure sine wave inverters are recommended for homes today as they run electronics and appliances more safely and efficiently compared to older square wave models.
Get the Right Backup System for Your Home
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