Things to Keep in mind before buying an inverter

Buying Guide 224 comments

Boiling summer is just few weeks ahead, scheduled and unscheduled power cuts are expected as usual. Inverters are one of the most demanded products of summer season. Are you planning to buy or upgrade your inverter in this season? Then instead of being trapped in the marketing gimmicks, understand some basic facts and do a little bit home work. Here some facts you must know before buying an inverter

inverter thumb Things to Keep in mind before buying an inverterCalculate your power requirements

Before going to purchase an inverter- You have to make a rough estimation of your power requirements. remember- Inverter is not a Generator. Inverter has it’s own limitations. You can’t power and run your complete home with a normal inverter. If your power requirement is  more than 3000 VA, then an inverter alone can’t cater your demands effectively. No doubt a high power inverter can run your refrigerator and air conditioners, but how long?  Here your battery will not last more than few hours. Hence it it better to go for a home generator. However if you don’t want a single minute power downtime, then a power inverter – electric generator combination is a good option.

 Wattage rating of typical home appliances

Appliances  Power
Fan (Ceiling) 50-75 Watts
Fan (Table) 25-50 Watts
CFL 18 Watts 18 Watts
Computer (Desktop) 80- 150 Watts
Laptop 20- 75 Watts
LCD TV (32”) 150 Watts
Refrigerator 160 – 250 Watts
Tube Light (4 Feet) 40 Watts

Starting power and running power

Starting and running power requirement of all electric appliances are different. An 18 Watts CFL takes around 25 Watts power to start and after few seconds it stabilizes to 18 Watts. Some appliances like Refrigerator, Washing Machine etc take almost double power to start as compared to the normal running power. Hence before selecting an inverter you must calculate the starting power requirement also.

Difference between VA and Watts

Often people confuse with the difference between Watts and VA ratings of inverter or other home appliances. Manufacturers use both these terms according to their requirements to confuse and mislead the consumers. Power drawn by the equipment (Power using equipment like Bulb, Fridge, Washing Machines, ACs, Stabilizers etc.) and Power generated by the equipment (Generators, Inverters, UPS etc) can be expressed in Watts or VA (Volt Ampere). In general Power generating or stabilizing equipment manufacturers use the term VA to specify their ratings and power consuming products use Watts to specify their ratings. Here comes the difference. Power in Watts is the real power drawn or supplied by an equipment, this is the real value. VA is the apparent power (more theoretical)  which is obtained by multiplying the Voltage and Current drawn/supplied by an equipment. We can equate the VA and Watts ratings:

Power in Watts = Power in VA- Losses

or

Power in Watts = Power in VA x Efficiency of the equipment

The ratio of Power in Watts to Power in VA is termed as Power factor. Unfortunately manufacturers often don’t specify the power factor or efficiency in their products.

Let’s see an example. You are purchasing an inverter with 650 VA power ratings. This 650 VA indicates, it can supply 650 VA power under ideal situations( means efficiency of the inverter is 100%). If we take 80% as a typical efficiency figure, the said inverter can supply 80% of 650 = 520 Watts only. Now you can understand why inverter manufacturers only publish the VA rating on their products. If an inverter or UPS is coming without mentioning power factor, you must take a safe value of 0.6 (60%) as power factor while connecting appliances.

Inverter or Home UPS?

Nowadays we can see a new segment in inverter market- Home UPS. Functionally both inverter and UPS do the same job- Converting Direct Current from batter to Alternating Current which is  used as a backup power generating device in case of mains power failure. UPS as the name suggest provide Uninterrupted Power Supply to equipment. The equipment will not feel the switching delay from mains to UPS supply. Switching over time of a typical UPS is 3 to 5 Milli Seconds only. A standard inverter takes around 500 Milli seconds which is unacceptable for the electronics devices like computers, Modems, Routers, printers etc.

Home UPS is a combination of Inverter and UPS. Here the switching delay of inverter has been brought down to UPS standard. Hence you need not to go for a separate UPS for PCs and associated devices. One thing you must remember- UPSs are further classified in to three- Offline, Online and Line interactive. Home UPS are normally Offline only, hence they cannot replace your online UPS requirements to drive sophisticated devices.

Digital Inverter

What is digital in inverters? First generation inverters were using power transistors as switching devices and transistorized circuitry for  monitoring/controlling applications. That is an old story. Nowadays inverter technology has changed a lot. A complete transition from old square wave technology to Pure Sine wave technology with the help of advanced Digital Signal Processing (DSP) techniques. Micro controllers are extensively utilized for précised monitoring and controlling applications. Switching transistors are replaced with high efficient MOSFETs.

Battery

Batter- the vital part of inverter. Performance and life of an inverter is greatly depends upon battery. We can see several classifications of inverter batteries. Normally high power Lead Acid batteries are used to power inverters. Lead acid batteries are classified in to different types as per application, design, technology etc.

Battery Capacity

Capacity of a battery is expressed in terms of Ampere Hour (Ah). It indicates the rate of current a battery can supply for a given duration. If the capacity of a battery is 100 Ah, that battery can supply 100 Ampere current for 1 Hour or 1 Ampere Current for 100 Hrs, 2 Amps Current for 50 Hrs .Capacity of inverter batteries are generally 100 Ah, 150 Ah or 180 Ah.

Why automotive batteries are not suitable for inverters?

Lead acid batteries used for automotive purpose are termed as “High Cycle” lead acid batteries. These batteries are designed to provide high current for a very short duration (To start the vehicles). Automotive lead acid batteries are not designed to be regularly discharged by more than 25% of their rated capacity. Here the requirement of inverter is totally different. Inverter require “Deep Cycle” type batteries to provide continuous power which can be discharged at least 50% of their rated capacity. Some good deep cycle batteries can be discharged over 80% of their capacity. Deep Cycle batteries have specially designed thick plates to withstand frequent charging and discharging.

Maintenance Free batteries

Lead acid batteries require regular maintenance. You have to check the electrolyte level and require to be topped up on regular intervals. Moreover these batteries release poisonous gases during charging and discharging. If you don’t keep the batteries in a properly ventilated place, it can invite serious health problems. You have to keep the terminals of normal lead acid batteries corrosion free by applying petroleum jelly or grease regularly.

Maintenance free batteries are sealed lead acid batteries which do not require topping up or additional ventilation.

Disadvantages of Maintenance free batteries:

  • Cost of Maintenance free batteries are very high as compared with normal lead acid batteries.
  • Life- Life of maintenance free batteries are comparatively low. For example if a normal lead acid battery run for 3 years, you can expect 2 years from a maintenance free battery.
  • Scrap value- You will not get much more from a maintenance free battery as scrap.

If you like a fit and forget inverter system or your situations don’t permit you to do periodic maintenance of batteries then go for a maintenance free battery. Let me quote one example- My friend uses Maintenance free batteries in his home because his old aged mother is living alone and she don’t have enough knowledge on battery maintenance. In that situation maintenance free battery is a right choice.

Tubular batteries

This is the most popular segment of inverter batteries-Tubular batteries have several advantages compared to flat plate batteries.  More complex design increases the manufacture cost but the high electrical efficiency and extra long life make tubular batteries suitable for both domestic and industrial applications. A good maintained tubular battery can run unto 8 years or more. Tubular batteries comparatively require less maintenance. Cost of tubular batteries can go up to double of a normal flat plate battery, however if you have a high efficiency inverter then go for a tubular battery, you will not regret. Almost all popular battery  brands in India like Exide, Prestolite, Amaron etc have specially designed tubular batteries for inverters.

Batteries from Inverter manufacturers

We can see that almost all inverter manufacturers supplies battery along with inverter. I strongly suggest-don’t go for such batteries. This is a simple business technique, often they just market batteries on their brand name. As battery costs more than inverter, it is always better to go for a  reputed and trusted battery brand. I have personal experience with Exide and Prestolite tubular batteries. Exide Invatubular batteries run flawlessly upto 5 years.

Local made batteries

We can see a common trend- People often go for branded inverter and local battery combination. Local batteries costs around 60% of the cost of same rated tubular batteries. However I don’t recommend local batteries because of the following reasons:

  • Poor life: A well maintained local battery can run maximum up to 3 years.
  • Poor efficiency: Electrical efficiency of local batteries are very poor, which requires more time to charge.
  • Safety hazards: Lead acid batteries are very much prone to explosion if not maintained well. We have witnessed several battery explosion incidents. Poor quality of safety vent plugs, casings, impure lead and acids increase the chances of accidents.
  • More maintenance: We can see that local batteries require more maintenance because of poor efficiency.
Flat Plate Batteriesexide inverter battery thumb Things to Keep in mind before buying an inverter Tubular Batteries
exide invatubular thumb Things to Keep in mind before buying an inverter
Maintenance Free Batteries (Sealed lead acid)
exide smf thumb Things to Keep in mind before buying an inverter
Battery Life Span Low (~ 3 Yrs) High(~ 5 Yrs) Medium (3 to 4 Yrs)
Maintenance High Medium Low
Cost Low High High
Safety Low Low High
Efficiency Low High Medium
Scrap Value High High Low

Warranty/Guarantee of Battery

First of all understand the difference between Warranty and Guarantee- Under the terms of Warranty you will get the maintenance and repair of items in free of cost but no replacement. A product under Guarantee will be get replaced in case of malfunctions. Normally we can see batteries are marketed under guarantee + warrantee combination , ie first few years Guarantee and after that warranty. Some brands offer even 48 months warranty. As battery is the costly and vital part of your inverter system, go for a brand which offer long term guarantee/warranty and after sales support.

Inverter output (Sine wave, Square wave, Stepped Sine wave)

inverter waveforms thumb Things to Keep in mind before buying an inverter

Our commercial power supply is 50 Hz pure sine wave (see the figure). However most of the inverters don’t output pure sine wave. Old inverters generate 50Hz square wave or 50Hz modified Sine wave (Quasi Sine wave , Trapezoidal wave or Stepped Sine Wave). Then the question comes. This wave shape really matters? Yes it does.

All commercial instruments are designed to run on pure sine wave. Characteristics of such devices are greatly depend upon the input wave shape. A change in wave shape will affect the performance of the appliances. Appliances like Motors, refrigerators, Ovens etc will generate full power on pure sine wave input only. Distortion in the sine wave creates humming noise in transformers, and audio devices. Some instruments like light dimmers, few battery chargers, toasters etc require pure sine wave to work. Prolonged operation of appliances in Square or stepped waves will considerably affect the life of such equipment due to the generation of heat.

You may be noticed that  audio amplifiers, Televisions, Fluorescent lamps etc make noise on inverter power. This indicates that inverter output is not pure sine wave. Sine wave inverters are costly as compared to square wave and stepped sine wave inverters, however it is always advisable to go for a pure sine wave inverter for the safety and effective performance of your appliances.

Square Wave Stepped  Sine Wave Pure Sine Wave
Safety of Appliances Less Moderate High
Life of Appliances Less Moderate High
Battery Life Less Moderate High
Noise Level High Moderate Normal
Heat generation High Low Normal
Suitability for sophisticated appliances No Not recommended for prolonged use Yes

Inverter efficiency and No load power consumption

Efficiency of an inverter is proportional to the amount of power drawn. It can varies from 90% to 50% from full load to light load. Here the notable factor is that inverter efficiency is high on maximum load. Generally an inverter is in its most efficient capacity when being used at around 1/3 to 3/4 of it’s full rating.

Power Consumption of inverters

Inverters take mains power supply to  charge the batteries. If the charging section of an inverter is not energy efficient, it will waste electricity even after the battery is fully charged. This will inflate your electricity bill. It is very difficult to check this aspect in shop before purchasing an inverter. However you can test the same at your home. Switch off all appliances except the  mains supply to inverter, disconnect the battery and measure the power consumption for a specific period.

Battery backup duration

Here we have an equation to find the battery life on load

Time(in Hrs) = Battery Voltage (In volts) * Battery Capacity (in Ah)*efficiency of inverter

                                                                           Load (in VA)

Let us have a sample calculation

Battery voltage = 12 Volts

Battery Capacity = 150 Ah

Load = Two fluorescent lamps (40 Watts each) and one ceiling fan (75 Watts )= 155 Watts

Inverter efficiency = 80%= 0.8

Backup Time = 12 * 150*0.8/155= 9.29 Hrs (Approx)

Other features

Solar Panel input: In typical Indian situations even eight hours of continuous commercial power supply availability can not be assured. Hence many people use the most reliable and alternate non conventional power source- Solar energy. Nowadays inverters facilitates the usage of Solar Panels also. Those inverters are embedded with solar charging circuits and regulators.

LCD Status Indicators: Modern inverters come with LCD status indicators to display various status like Battery charge level, Load, Input/Output voltages, Battery life etc.

Voltage stabilizer , High/Low voltage cutoff : Normal inverters don’t stabilize the mains supply, means the commercial supply is routed directly to the appliances without monitoring. Some inverters comes with in built voltage stabilizer , which protects your appliances from voltage fluctuations.

Earth Leakage Protection: Earth leakage protector is a safety device used to protect users from electric shock and appliances from damage. Modern inverters come with in built earth leakage protection circuits, which continuously monitor earth leakage and cut off the supply to safeguard the users.

After Sales Support

We can’t give a blanket suggestion in favor of a particular brand or model. All electronics equipment are prone to damage, hence after sales support is always paramount which varies from place to place. As inverters are static devices, go for a dealer or brand who offers on site warranty repair and maintenance.

Read this Home Solar Inverter Buying Guide


  • Renuka 11/01/2012, 2:15 PM Reply

    Hello Sujith,

    Thanks A lot for Your Information. Please assist me to purchase good solar inverter for home appliances.
    I have requirement of 2 ceiling fans and 1 table fans. 1 tube light and 3 clf lights, TV.

    I have seen NA-BARD scheme for solar inverter home appliances. In that I am unable to find which company is good , so Please assist me which company is good and which battery is suitable for my requirement.

    Waiting for Your reply.
    Many thanks

  • Kumar 12/14/2012, 12:31 PM Reply

    Hello Sujith,

    Thanks A lot for Your Information. Please assist me to purchase good solar inverter for home appliances.
    I have requirement of 2 ceiling fans and 1 table fans. 1 tube light and 3 clf lights, TV.

    I have seen NA-BARD scheme for solar inverter home appliances. In that I am unable to find which company is good , so Please assist me which company is good and which battery is suitable for my requirement.

    Waiting for Your reply.
    Kumar

  • nikhil andezhath 12/16/2012, 10:50 PM Reply

    Thanks a Lot. i was searching online for information on inverters as i have just shifted to chennai and here we have atleast two hours of powercut and sudden powercuts at any other given time of the day. In Mumbai where i used to stay we did not have any powercuts so my knowledge on inverters was as good as nil before reading this article.Appreciated.

    Nikhil

  • Ahmadullah 12/17/2012, 9:18 AM Reply

    Hi Sujith,I want to know about c10&c20 rating batteries.Which one is better for long backup and long life?

  • ajoy chakraborty 02/07/2013, 11:47 AM Reply

    hii sujit,
    I live in guwahati n the power cut problem is much more here.i want to buy an inverter so i need your suggestion.i want to run 3 cieling fan,4 cfl for about 5 hours a day.suggest me which battery and inverter i should buy.
    waiting for ur reply.

    • yatik 09/23/2013, 8:44 PM Reply

      U should buy su-kam 1200va inverter if u use all things together and if use some of them then 850va inverter is ok with 180 amp battery in both cases.

  • Kiran Nahta 03/04/2013, 3:11 PM Reply

    Very informative article. It helped me to choose the right battery for my inverter. Sadly, the inverter was already bought before I went through this article otherwise I would have gone for a better option.

  • King 03/05/2013, 4:56 PM Reply

    I am about to choose between rechargeable fan and inverter.. this article is very much informative and made me know about how the inverter/UPS system works.. thanks for the share

  • Chandra Sekhar 03/12/2013, 11:33 AM Reply

    Thank you very much for the information, Which was very useful to me in choosing a good combination of invertor and battery.

  • K C Rana 03/19/2013, 7:55 PM Reply

    Hello Sujith,

    Thanks a lot for your informative article.
    Please suggest me one of below combinations as per price and performance wise:
    1.Sukam Shiny 850VA inverter and Sukam SBT1500 150AH
    2.Microtek SEBZ 850VA inverter and exide Inva Tublar(IT) 500 150AH

    Thanks & Regards,
    Krishna

  • Arun 03/20/2013, 3:38 PM Reply

    Thank you for your well written and informative article. It has explained a lot of questions that I had been carrying for quite some time now. Thanks again.

  • abdul salam 03/21/2013, 11:06 AM Reply

    SUJITH thanks for information which is very useful,I live in karnataka and the power cut problem is much more here.i want to buy an inverter so i need your suggestion.i want to run 3-4 cieling fan,3-4 cfl and 2-3 tube for about 5 hours a day.suggest me which battery and inverter(with capacity) i should buy.

    waiting for ur reply.

  • Marc 04/01/2013, 8:00 AM Reply

    “Capacity of a battery is expressed in terms of Ampere Hour (Ah). It indicates the rate of current a battery can supply for a given duration. If the capacity of a battery is 100 Ah, that battery can supply 100 Ampere current for 1 Hour or 1 Ampere Current for 100 Hrs, 2 Amps Current for 50 Hrs .Capacity of inverter batteries are generally 100 Ah, 150 Ah or 180 Ah.”

    That’s not exact. Generally, the indicated battery capacity is correct for a 20 hours discharge. The more fast the battery is discharged, the less it’s capacity. A 100 Ah battery discharged will supply a current of 5 Ampere for 20 hours, but the same battery will supply a current of 100 Ampere for only 30 minutes, not one hour.

  • Marc 04/01/2013, 8:25 AM Reply

    The first inverter I saw 35 years ago was made with a 12 Volt DC motor rotating a 220 Volt alternator fixed on the same axe, and was able to supply 800 Watt… Other were made with an electromechanic device that while vibrating switched on and off electrical contacts between the battery and a transformer…

  • Krishna 04/02/2013, 12:24 PM Reply

    Hi Sujith,

    Thanks for your suggestions.
    I am opting Microtek SEBZ 850VA inverter.
    But regarding battery,I want to purchase an old battery for some time which is available with one of my friend.
    Battery specification is : Luminous “IL 18000 PLUS 150 AH” 1 year old normal battery with 24 months warranty.I am thinking if I purchase this for aprox 4000…It will be sold at approx 2300 after 1.5 years.Will it be benificial to me.
    Please suggest about the option and price for the same.

    Regards,
    krishna

  • Ankur patel 04/04/2013, 4:17 AM Reply

    I m going to take an inverter for house which will be best battery and inverter for 500 watt load.

  • Dr Mittu John 04/25/2013, 7:16 PM Reply

    Kindly give your opinion regarding V Guard inverter and batteries… are they good

    • Sujith 04/25/2013, 7:27 PM Reply

      Vguard is a trusted brand in terms of product quality and after sales service. Their DU series sine wave inverters are good. I always advice batteries from the original battery brands like Exide, Amaron, Prestolite etc

  • Dr.Avinash Singh 05/20/2013, 11:51 PM Reply

    Thanks Sujith,very useful post indeed..
    But I’m still confused!!!! Hope you’ll help me.
    I recently bought LUMINOUS ION SINE WAVE INVERTER 1500 VA with two “IT SUPER” EXIDE BATTERIES 150Ah+ each

    How many hours of back up I can get if my power consumption is 600Watt?

    Wating for your reply.
    Thanks & regards.
    Avinash

  • shyam 05/24/2013, 9:55 PM Reply

    please tell me which water use in battery maintainence and how to got and made self possibe or not

  • Prateek 05/25/2013, 2:10 AM Reply

    Can two battaries of 12V and 150Ah can be connected to 850V inverter? Inverter with more power is required to connect more than one battary, what is the profit of connecting two battaries?

    • Sujith 05/25/2013, 10:27 AM Reply

      It’s not good to connect two 12 150 ah batteries in parallel for getting more power from an 850 VA inverter because the charging circuit of 850 Ah inverter won’t be able to give sufficient current to charge the two batteries within the stipulated time.

      • Dr.Avinash Singh 05/25/2013, 11:07 AM Reply

        What about my question???
        Please reply.
        Thanks

  • Abhaya 06/06/2013, 11:20 AM Reply

    Thanks A lot for Your Information
    Please help me out sugesting suitable combination of inverter and battery (V & Ah)
    I am planning to buy exide inva tubular battery and microtek inverter.
    Please suggest.
    Power Requirement- 6 24watt CFL,1lcd 21 inch,3 ceiling Fans

  • SANJAY JAIN 06/07/2013, 10:38 AM Reply

    HI,

    A VERY COMPREHENSIVE AND LUCID ARTICLE WHICH LEADS TO EASY UNDERSTANDING.

    REGARDS

  • ramesh 06/12/2013, 10:46 PM Reply

    Power Requirement- 5 20watt CFL, 1 led 321 inch, 3 ceiling Fans

    Pls suggest me good inverter and battery.. Backup should me minimum of 6 to 8 hrs.

  • gopi 06/23/2013, 5:35 PM Reply

    Is this solar panels capable to handle lightning when they occurs ?
    or to protect the panels from lightning do we need any special arrangement ?

  • gopi 07/03/2013, 5:29 PM Reply

    Sir
    im confused regarding solar inverters dealers have different combinations when giving battery and panels.for 850 va sinewave inverter some says 150 watt panel and 200ah battery sufficient but some says different ,In these connection what is correct procedure for 850 va(hw many panels and how much AH battery needed)

  • Ravi 07/05/2013, 10:01 PM Reply

    Hello Sujith,

    I want to buy UPS / Inverter for my Parents for basic use. They should get the back for maximum of 12 hours for (LCD TV 42, 3 fans, fridge, 4 CFL Bulb). Cost is not a issue; i want to ensure that they get the best product which give them back up as per their need with no headache of maintenance. My Parents are based in Kerala – Kollam.

    I’d highly appreciate your able guidance. Thanks alot for your support and guidance to everybody.

    Best Regards,

    Ravi Kishor

  • Mutha Srikanth 07/16/2013, 1:38 PM Reply

    Hi Sujith,
    Thanks a lot for the info. Could you help me with a choice for (2 fans + 2 lights and TV)
    1. Amaron 600 VA + Amaron 150 Ah
    2. Microtek 600 VA + Exide Inva tubular 150 Ah

  • prem 07/18/2013, 9:00 PM Reply

    Great article Mr Sujith

    I want a inverter to run the following for at least one hour. It should be UPS so that my computer doesn’t restart. It should have stabilizer as there are lots of voltage fluctuation.

    3 Fan_________180watts
    3 CFL_________60watts
    3 Tube lit____120
    1 Workstation_150
    1 Laptop 17″__100
    1 LED TV 42″__250
    1 Fridge3door_250
    1 modem_______20
    1 tata sky____20
    1 HomeTheatre_150

    TOTAL=1300watts

    Which brand inverter should I buy.
    what should be the capacity of the inverter (850 or 1200)
    Which brand and what power battery.

    can you suggest the best option with longer warranty period

  • tubular battery manufacturers in bangalore 09/06/2013, 3:19 PM Reply

    this post is really helpful to everyone thanks for adding.

  • kanu patel 09/14/2013, 9:38 PM Reply

    thanks

  • mrs rosy vincent 10/23/2013, 1:06 PM Reply

    i have a microtek inverter with 600 v taken past 2 years was having problems in the iverter like there are 3 green led indicator lights from which 1 indicator light which is not on today i called up the dealer from where i purchased he’s isnt serious about the matter he says its alright not a problem this is second time happened what to do

  • Kshetiz 01/16/2014, 11:37 AM Reply

    Hi,

    I basically work from home, so I need an inverter which can last up to 2 to 3 hours just in case the power goes. I just need it for my laptop so I can work without getting disrupted. So could you please suggest me which one would be a good buy for me.

  • Mukund 01/23/2014, 10:40 AM Reply

    I need Invertor for my BPO having 11 PC 4 Tube light 1 fan say around 1500 watt….how much will be the cost of invertor & battery separately?

    pls. suggest option

  • Bhupesh 02/15/2014, 12:09 AM Reply

    I want to buy home inverter in Delhi for around 650VA capacity. Which inverter i should buy? Please help.. I have one Exide inv+ 150AH battery already with me.

  • Gurmeet Singh 02/19/2014, 12:43 AM Reply

    Dear

    i have a small office please guide me on inverter battery sets

    my requirements are

    6 LED LIGHTS 15 W

    2 FANS WALL HANGING

    1 LCD TV

    1 LASER JET PRINTER HP 1005 APPROX 400 W

    1 COMPUTER DESKTOP

  • sreenivas v 03/15/2014, 1:56 PM Reply

    information provided is very much useful for the new person to purchase an inverter

  • Dhawal Rana 03/22/2014, 3:33 PM Reply

    Hi sujith

    I still searching useful guidance before buy a best invertor i read ur useful articles and query so I planned to buy Microtek pure shine wave inverter 850VA with Exide Tabular battery 180 AH for 3 cfl , 3 Celing fans, 1 LCD tv for minimum 2 Hrs. i still confused and want to know is it perfect combination for inverter VA +Battery AH and how much cost it will make.
    Reply soon
    Thank u
    from Dehradun

    • Sujith 03/22/2014, 7:25 PM Reply

      You can go ahead with your plan. 180AH + 850 VA combination is sufficient for your load and backup requirement.

  • Dhawal 03/28/2014, 9:51 AM Reply

    Hello sir Thanks to respond my last query on the same Day. well yesterday I went to Dealer shop for Microtek Sebz850VA PSWave + Exide IT 500 with Price 4000+14000 Rs Total Rs 18000 . I Thought price is Best Without Barganing. But later he told me Buy Sukam850Va PSWave + sukam150Ah Battery approx 3000+12500 Total 15500 Rs . but I’m not satisfied for that He also said that Exide IT 500 is costly And There is No Replacement Warranty. If any Default Rise on Sukam Battery Dealer will replace with New Battery I’m confused which Battery to choose Help me. reply soon

    • Sujith 03/28/2014, 3:17 PM Reply

      Sukam is also a good and reputed brand. It has been observed that the shopkeepers markets the products which give them more margin. You need can check the price and warranty details of battery from an authorized Exide dealer also before taking a final decision. Exide also gives replacement warranty for certain batteries, I am not sure about the model which you have specified.

  • Dhawal Rana 03/31/2014, 9:35 AM Reply

    Hello Sir Thx for feedback. finally my Brother have purchased microtek Sebz850VA PSWave for Rs 4200 From Other Dealer. Due to my absentee my brother did one mistake he purchased Exide CEIL RED 500+ 150AH for Rs 11500 insted of exide IT500 i really dissapoint. well whatever would u tell me plz Exide CEIL RED 500+ is tubular battery or not? and how it will perform is it outdated Batt.? above mentioned price is Good Deal or Not.? Reply me as soon as possible

    Thanks
    from
    Dehradun
    Uttrakhand

    • Sujith 04/02/2014, 9:32 PM Reply

      Exide CEIL RED 500 is a tubular battery. However you could have better choice from Exide.

  • purnima 04/07/2014, 4:07 PM Reply

    Hey sujith,
    Thanks for da info.that was very helpfull.I have some querries too.

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