A Home UPS keeps fans, lights, a refrigerator and your Wi-Fi running when summer power cuts hit, and the right size depends on the total wattage you need to back up. Okaya's current Home UPS range has six models from 700 VA to 2000 VA, all with Advanced True Sine Wave output and a 36-month warranty. This guide explains which model suits which home, what the key features do, and how to plan your power backup for home before the next heatwave.
Summer puts the most continuous load on your home: fans, coolers and the refrigerator run for long hours, and an outage stops all of them at once. A Home UPS switches to battery power so these appliances keep running, and it also shields sensitive electronics such as routers, TVs and computers from sudden shutdowns.
In the Indian residential market, the terms home inverter and Home UPS are often used interchangeably. A Home UPS is designed for fast changeover to battery power; Okaya's Smart Phase Match Switching transfers in about 10 milliseconds, which is quick enough that devices such as computers and routers do not restart.
Okaya offers six Home UPS models in the Advanced Home UPS range, from 700 VA to 2000 VA, as shown in the table below. The full set is listed on the Home UPS models page. All six deliver Advanced True Sine Wave output and carry a 36-month warranty, and the range is BIS Registered, ISO Certified, and carries the CE Mark.
|
Capacity (VA) |
Output (W) |
Voltage |
Home size Okaya suggests |
|
700 |
560 |
12V |
1BHK |
|
925 |
740 |
12V |
1BHK |
|
1150 |
920 |
12V |
2BHK |
|
1450 |
1160 |
12V |
2BHK |
|
1650 |
1320 |
24V |
3BHK |
|
2000 |
1440 |
24V |
3BHK |
Source: Okaya Home UPS product pages. Home size is Okaya's general guidance; your own load decides the final choice.
Add up the wattage of the appliances you want to run together during an outage, divide the total by 0.8, and choose the model whose VA rating is equal to or just above the result. For example, if your essential appliances total 600W, 600 divided by 0.8 is 750 VA, so the 925 VA model covers it. If you are still deciding which UPS is best for home use, the detailed walkthrough in how to choose the right inverter VA for your home covers the calculation step by step.
The inverter size and capacity of each model are listed side by side on the Home UPS listing, which makes it easy to compare your total with the next rating up.
Yes, within its rating. The 700 VA and 925 VA models suit lights and fans. For a refrigerator, Okaya's guidance is a model of at least 1150 VA, so the 1150 VA or 1450 VA models are the ones to look at.
Air conditioners, water pumps and other heavy loads are outside the Home UPS range. They need the Hi-Capacity range, which starts at 2500 VA, and the guide on whether an AC can run on an inverter explains how to size for the running load and the startup surge.
Advanced True Sine Wave output provides smooth, grid-like power, which Okaya lists as suitable for sensitive electronics, variable-speed fans, refrigerators and medical equipment. The result is smoother running and less stress on appliances during backup. To see how this differs from other waveforms, read the explainer on how a pure sine wave inverter works.
Five features matter most when outages are frequent and the load is high.
Super Intelli Charge uses a Boost to Float charging mode so the battery reaches about 60% charge faster after a deep discharge. Okaya states it charges 15% faster than conventional inverters, which helps when power cuts come back to back.
The energy-efficient EI Core is designed to reduce watt loss by about 20 to 25%, which Okaya links to higher load capacity and a longer service life.
The changeover to battery takes about 10 milliseconds, so lights and electronics carry on without a visible break.
The UPS is designed to support loads above 100% for short periods, which suits motorized appliances such as mixers that draw extra power at startup.
After an overload or a mains fuse trip, the UPS resets itself within 30 to 40 seconds without any manual intervention.
Okaya Home UPS models protect the UPS, the battery and your appliances with these safeguards:
1. Smart overload protection
2. Smart battery low protection
3. High-battery voltage protection
4. Input and output short-circuit protection
5. Auto reset for mains short circuit or fuse trip
6. Over-temperature protection
A Home UPS draws backup power from a separate inverter battery, so backup time depends on the battery's capacity as well as the connected load. Okaya declares backup times for its batteries as Certified Backup Hours, tested at specific loads, which you can find under Certified Backup Hours (CBH). The range of inverter battery for home use covers the capacities available.
Matching the UPS and the battery correctly also protects both, and the explainer on why compatibility matters in power backup systems covers how to pair them.
Current prices and offers are listed on the Okaya shop, so you can compare models before you decide. See the home UPS price listing for the full range, or open the product pages for the 1450 VA inverter price and the 2kva inverter price to check each model's specifications and warranty.
If you prefer to see the unit first, use the Okaya dealer locator to find a dealer near you, and see Okaya's best power backup for home page for the complete Home UPS range.
Conclusion
For summer outages, pick the Home UPS by your total load: 700 VA and 925 VA for lights and fans, 1150 VA and above when a refrigerator is on the list, and the Hi-Capacity range for air conditioners and pumps. With Advanced True Sine Wave output, about 10 millisecond switching, Super Intelli Charge and a 36-month warranty, the Okaya Home UPS range is built to keep a home running through the hottest months.
Can a home UPS run a refrigerator during a summer power cut?
Yes, if the UPS has enough capacity. Okaya recommends a model of at least 1150 VA for a refrigerator, so the 1150 VA or 1450 VA models are the ones to consider.
How many VA do I need to run fans and lights in summer?
Add the wattage of the fans and lights you want to run together, divide the total by 0.8, and choose a model at or just above that VA. The 700 VA and 925 VA models suit lights and fans.
Is a home inverter the same as a home UPS?
In the Indian residential market, the terms home inverter and Home UPS are often used interchangeably. A Home UPS is designed for fast changeover to battery power, and Okaya's Smart Phase Match Switching transfers in about 10 milliseconds.
Can an Okaya Home UPS run an air conditioner?
A standard Home UPS is generally not recommended for running an air conditioner. ACs usually require Okaya's Hi-Capacity UPS range, which starts at 2500 VA, sized according to the AC's running load and startup surge.
Which Okaya Home UPS suits a 2BHK home?
Okaya suggests the 1150 VA and 1450 VA models for 2BHK homes, and the 700 VA and 925 VA models for 1BHK homes. A 3BHK home is suited to the 1650 VA and 2000 VA models. Your total load makes the final decision.
What does Advanced True Sine Wave output do for appliances?
It provides smooth, grid-like power, which suits sensitive electronics, variable-speed fans and refrigerators, and reduces stress on them during backup.
Does a Home UPS need a separate battery?
Yes. The UPS runs from an inverter battery, so backup time depends on the battery capacity and the load you connect.
What warranty does an Okaya Home UPS have?
All six models in the Advanced Home UPS range carry a 36-month warranty.
What protections does an Okaya Home UPS have?
Overload, battery low, high battery, input and output short circuit, mains short circuit or fuse trip, and over-temperature protection, with auto reset within 30 to 40 seconds after an overload or fuse trip.
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