When I talk to customers, dealers, and even new entrepreneurs entering the power backup industry, one of the most common questions I hear is: What is the price of a 12-hours backup inverter in India in 2026?

It’s an important question because long-backup inverters have become a necessity in many parts of India—especially areas facing frequent power cuts, voltage instability, and growing energy demands. As a trusted brand, Lento has consistently delivered high-performance backup solutions, and through this blog, I want to help you understand everything you need to know before choosing a 12-hour backup inverter in 2026.

While explaining the pricing, I will also use my experience as a long-time online ups manufacturer, online ups supplier, and online ups trader to give you a deeper market perspective. The goal is to make this guide simple, informative, and practical for both end users and business owners.

Understanding What a 12-Hours Backup Inverter Really Means

Before discussing prices, it’s important to understand the concept of “12 hours backup.”

Many customers believe the inverter alone provides backup, but the truth is:

Backup hours depend mainly on battery capacity, load, inverter efficiency, and usage patterns.

A 12-hour backup system usually includes:

• A high-efficiency inverter (600 VA to 3 KVA depending on load)

• One or two tubular batteries (150Ah, 180Ah, 220Ah, or lithium batteries)

So, when I talk about the price of a 12-hour backup inverter in 2026, I am referring to:

Inverter + Battery + Installation + Warranty Considerations

This gives a realistic, complete picture.

Factors That Decide 12-Hours Backup Inverter Price in 2026

Based on my industry experience, several elements contribute to the pricing:

1. Battery Type

This is the biggest cost component.

• Tubular Batteries: Affordable, strong, long cycle life

• Lithium Batteries: High efficiency, long lifespan, premium pricing

• SMF/GEL Batteries: More stable but pricier than tubular

A tubular battery system is cost-effective for home users, while lithium is preferred for premium installations.

2. Inverter Capacity

To get 12 hours backup, users typically select:

• 600VA inverter, if running only lights + fans

• 900VA–1500VA inverter, for household loads

• 2KVA–3KVA inverter, for heavy appliances or small shops

Higher capacity increases price.

3. Energy Consumption / Load

Your backup duration changes if you increase or reduce the load.
Dealers and customers often calculate pricing based on:

• Light load (150–200 watts)

• Medium load (300–450 watts)

• Heavy load (500–900 watts and above)

4. Brand Reputation & Warranty

Brands like Lento, which offer reliable build quality, pure sine wave technology, and longer warranty, may have slightly higher upfront cost—but deliver higher long-term savings.

5. Region & Market Demand

In 2026, inverter prices vary across states based on demand, logistics, and dealer networks.

12 Hours Backup Inverter Price in India 2026 – Estimated Range

Based on the 2026 market trends, cost of materials, and battery pricing, here is a realistic price range:

1. 12-Hour Backup with 600VA Inverter

For lights + fan use
Price Range: ₹22,000 – ₹30,000
Includes inverter + 150Ah tubular battery

2. 12-Hour Backup with 900VA–1050VA Inverter

Best for small homes
Price Range: ₹28,000 – ₹38,000
Includes 150Ah/180Ah tubular battery

3. 12-Hour Backup with 1500VA Inverter

For medium households
Price Range: ₹42,000 – ₹58,000
Includes dual 120Ah/150Ah batteries

4. 12-Hour Backup with 2KVA Inverter

Suitable for home + shop
Price Range: ₹60,000 – ₹85,000

5. 12-Hour Backup with Lithium Battery Inverter (Premium Class)

Modern, lightweight, long-life
Price Range: ₹85,000 – ₹1,40,000
(depending on battery capacity)

Lento offers advanced lithium solutions to meet long-backup household and commercial needs.

Why Lento Inverters Are Ideal for 12-Hours Backup

Being a widely trusted online ups manufacturer, online ups supplier, and online ups trader, I always recommend that customers choose quality over price.

Lento inverters stand out because of:

Pure Sine Wave Output

No noise, no appliance damage, and smooth performance.

High Efficiency DSP Technology

You get more backup hours with the same battery capacity.

Lower Battery Water Consumption

Which results in lower maintenance.

Rugged Design for Indian Conditions

Built to perform even in high temperatures and low-voltage areas.

Long Warranty

Ensures complete peace of mind.

How to Calculate the Right Battery for 12-Hour Backup

In simple terms:

Backup Time = (Battery Capacity × Battery Voltage × Efficiency) ÷ Load

Example
If load is 200W and you are using one 150Ah battery:

Backup ≈ 10–13 hours
This is why most homes choose the 150Ah range.

For heavier use, dual batteries are suggested.

Types of Users Who Need 12-Hours Backup Inverters

Based on what I see in the market, long-backup inverters are popular among:

• Rural and semi-urban home users

• Retail shops

• Small offices

• Medical stores

• Mobile shops and clinics

• Students in power-cut-prone areas

• Farm houses

If your area experiences 6–12 hours of daily power cut, a 12-hour system is the right investment.

Choosing Between Tubular vs Lithium Batteries for 12 Hours Backup

Let me give a simple comparison to help you decide:

Tubular Batteries

• More affordable

• Easily available

• 3–5 years lifespan

• Requires maintenance

Lithium Batteries

• Fast charging

• 10–12 years lifespan

• No maintenance

• Lightweight

• Higher price

For long-term investment, lithium is the clear winner.
For cost-conscious users, tubular batteries are perfectly fine.

Lento’s Recommendation for 12 Hours Backup in 2026

Over the years, I’ve tested multiple inverter setups. My most recommended combinations for customers in 2026 are:

Option 1: Budget-Friendly

• Lento 900VA Pure Sine Wave Inverter

• 150Ah Tubular Battery
  Ideal for small homes.

Option 2: Mid Range

• Lento 1500VA DSP Inverter

• Dual 150Ah Batteries
  For bigger loads + longer backup.

Option 3: Premium Lithium

• Lento 2KVA Lithium Inverter System

• 2–3 kWh Lithium Battery
  Ultra-reliable and long lasting.

These three options cover almost all types of users.

Tips to Maximize Your 12-Hour Backup

Here are some practical suggestions I share with all customers:

• Keep wiring and battery terminals clean.

• Avoid connecting heavy appliances.

• Use LED lights instead of CFL or tube lights.

• Charge the battery fully before long usage.

• Service your battery once every six months.

Consistent maintenance improves backup time and battery life.

Frequently Asked Questions

1. What is the price of a 12-hours backup inverter in India in 2026?

The price ranges from ₹22,000 to ₹1,40,000, depending on inverter capacity and battery type.

2. Can a single battery provide 12 hours backup?

Yes, if your load is low (around 150–200W).
For higher loads, dual batteries are required.

3. Is lithium battery better for long backup?

Absolutely. Lithium offers higher efficiency, longer life, and zero maintenance.

4. Which brand is best for 12-hours backup inverters?

Lento is one of the most trusted brands known for strong build quality, DSP technology, and reliable backup.

5. Does load affect backup timing?

Yes. The more appliances you run, the shorter the backup.

6. How many hours is 150Ah backup?

approximately 6.2 hours

7. How long will a 3000 watt inverter run?

How long will a 3000 watt inverter run? As I have noted, the battery runing time=battery capacity / inverter power. So for 48V100Ah battery, the battery running time=48V*100Ah/3000W=1.6 hours. If you chose 48V200Ah battery, the battery running time=48V*200Ah/3000W=3.2 hours.

Conclusion

The demand for reliable, long-backup inverters is only growing in India, and by 2026, customers expect more efficiency, smarter technology, and better durability. A 12-hour backup system is a smart investment for homes, shops, and small businesses—especially in areas where power cuts are unpredictable.

If you are planning to purchase or distribute high-quality inverters, choosing Lento ensures long-term performance, superior technology, and peace of mind. Our experience as an online ups manufacturer, online ups supplier, and online ups trader helps us deliver products that meet real Indian conditions.