Question 1

What is a tubular battery?

Accepted Answer

A tubular battery is a lead-acid battery designed for long backup duration and durability. It has a lifespan of 3 to 5 or more years, is ideal for areas with frequent power cuts, and requires low maintenance with proper care. It is best suited for homes and small offices.

Question 2

What is a tall tubular battery?

Accepted Answer

A tall tubular battery is an upgraded version of the standard tubular battery with a higher capacity and longer backup time. It performs better under heavy usage and is more durable than flat plate batteries. It is best suited for large homes, offices, and shops.

Question 3

What is a gel battery?

Accepted Answer

A gel battery is a sealed, maintenance-free battery that uses gel electrolyte instead of liquid. It requires no water topping, has zero leakage risk, is safe for indoor use, and is capable of long deep discharge cycles. It is best suited for apartments and indoor environments.

Question 4

What is a deep cycle battery?

Accepted Answer

A deep cycle battery is designed to provide steady power over long periods. It can discharge deeply without sustaining damage and has a longer lifespan than regular car-type batteries. All tubular and gel batteries are types of deep cycle batteries.

Question 5

Which battery is best for a Sri Lankan home?

Accepted Answer

The tall tubular battery is the best overall choice for most Sri Lankan homes. It offers long backup time, strong performance under heavy load, and good value for money. For apartments or indoor setups where maintenance is not practical, the gel battery is the better option.

Question 6

What is a sine wave inverter?

Accepted Answer

A sine wave inverter produces a smooth approximated power output that works with most basic appliances including fans, lights, and simple electronics. It is a good option for basic home setups without sensitive electronics.

Question 7

What is a pure sine wave inverter?

Accepted Answer

A pure sine wave inverter produces power output identical to the electricity supplied by the national grid. It is 100 percent safe for all appliances including televisions, refrigerators, computers, and air conditioning units. It operates silently with no appliance hum. It is the recommended standard for all installations at Inverters.lk.

Question 8

What is the difference between sine wave and pure sine wave inverters?

Accepted Answer

A sine wave inverter produces an approximated waveform that may cause noise or compatibility issues with sensitive electronics. A pure sine wave inverter produces a true waveform identical to grid electricity, making it safe and compatible with every appliance. For any home or business with modern electronics, a pure sine wave inverter is the correct choice.

Question 9

Which inverter type does Inverters.lk recommend?

Accepted Answer

We recommend pure sine wave inverters for all installations. They protect expensive electronics, operate silently, provide stable power, and offer long-term reliability.

Question 10

How long does a backup system last during a power cut?

Accepted Answer

Backup duration depends on the total load of your appliances and the battery capacity installed. During our free site inspection, we calculate your exact load and recommend a battery bank that meets your required backup time, whether that is 2 hours or 8 hours or more.

Question 11

Is the system safe for appliances like TVs and refrigerators?

Accepted Answer

Yes. Our pure sine wave systems produce output identical to grid electricity. They are fully safe for televisions, refrigerators, computers, and all sensitive electronics.

Question 12

Does the system switch automatically during a power cut?

Accepted Answer

Yes. Our systems are fully automatic. When a power cut occurs, the system switches to battery power within milliseconds, before you notice any interruption. When power is restored, the system switches back and begins recharging the batteries automatically. No manual action is ever required.

Question 13

How long does installation take?

Accepted Answer

Most residential installations are completed within a few hours. Larger commercial installations may take longer depending on system complexity.

Question 14

Do your products come with a warranty?

Accepted Answer

Yes. All inverters and batteries supplied by Inverters.lk come with manufacturer warranty. We also provide post-installation support for any questions or issues.

Question 15

How much does a backup system cost?

Accepted Answer

The cost depends on your load requirements, required backup time, and the battery type selected. We do not sell fixed packages because every home and business has different needs. The most accurate way to know your cost is to book a free site inspection, after which we provide an exact quote.

Question 16

Do you service all areas of Sri Lanka?

Accepted Answer

Yes. Inverters.lk provides islandwide service across Sri Lanka.

Question 17

What brands do you supply?

Accepted Answer

We supply products from Microtek, Luminous, Browns, and Amaron, among other trusted manufacturers.

Question 18

What is included in the free inspection?

Accepted Answer

Our team visits your location, assesses all the devices you need to run during a power cut, calculates your total load, recommends the appropriate inverter and battery, and provides a written quote. There is no cost and no obligation to proceed.

Everything You Need to Know.

Battery Types Explained

Inverter Types Explained

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