In winter, power cuts hit the appliances you rely on most. How long your backup lasts depends mainly on the total wattage you run, while temperature, battery age, the inverter used and state of charge can also affect actual backup. This guide explains how to plan winter backup with an inverter battery for home, which loads suit it, and what Okaya states about its tubular range.
It depends on the total wattage of what you connect, the rating of your inverter and the capacity of the battery. Lights, fans, a TV, a Wi-Fi router and phone chargers are low-wattage loads. Heating appliances such as room heaters, geysers, electric kettles and induction cooktops are usually high-wattage, so they drain backup much faster. Check the wattage printed on each appliance before you decide what to keep on during a power cut.
Okaya has not published battery suitability for heating appliances. If you want to run any of them on backup, confirm with Okaya Care or your dealer that your inverter and battery can support the combined load.
List the appliances you want to run, add up their wattage with the inverter power calculator, and then compare the declared backup hours of battery models at a load close to yours. Okaya's Certified Backup Hours are tested under the UMHD (Urban Metro Heavy Duty) load cycle in NABL-accredited laboratories and printed on the packaging. Examples, in hours:minutes:
1. 90Ah, 48 months (24+24): 3:25 at 200 W, 8:10 at 100 W.
2. 160Ah TT, 60 months (36+24): 3:15 at 400 W, 8:45 at 200 W, 20:15 at 100 W.
3. 210Ah TT, 60 months (36+24): 12:05 at 200 W, 28:10 at 100 W.
4. 260Ah TT, 66 months (42+24): 15:05 at 200 W, 32:40 at 100 W.
5. 310Ah TT, 60 months (36+24): 6:40 at 400 W, 9:45 at 300 W (tested at 600 W to 300 W).
These loads are far lower than a typical heater, so do not read them as heater backup times. Okaya states that XBD+ gives up to 15 to 20% longer backup than a conventional tubular battery of the same Ah capacity.
Okaya suggests 90Ah for compact needs, 160Ah for a typical 2BHK, 210Ah for larger homes or longer backup, 260Ah for heavy loads and 310Ah for commercial use. Choose mainly by your wattage and the hours you need.
For the full selection steps, read which inverter battery suits your home and power needs.
Okaya states that real backup varies with temperature, battery age, the inverter used and the battery's state of charge. Keep the battery in a dry, well-ventilated spot as the installation guidance advises. Factors that affect inverter battery performance and life explains the others.
A battery that is not fully recharged before the next cut gives less backup. Okaya states that its SJT batteries recharge about 15% faster than conventional Jumbo Tubular batteries. That is not a comparison with TT, and the inverter's own charging also affects recovery.
Okaya states that most of its models need only 1 to 2 water top-ups a year. Six ceramic water-level indicators show the level. Use the water specified in the product manual or by Okaya Care for your model.
Total warranty is 48 to 66 months depending on the model, made up of a flat period and a pro-rata period. Warranty registration is paperless, and Okaya lists an all-India onsite service network. Message Okaya Care on WhatsApp at +91 9818 909090, write to care@okaya.in, or use the dealer locator to find nearby Okaya dealers in your area.
It depends on the combined wattage, your inverter's rating and the battery capacity. Heating appliances are usually high-wattage and drain backup quickly. Check the appliance wattage and confirm with Okaya Care or your dealer before connecting them.
Which appliances are best to keep on during winter power cuts?
Low-wattage essentials such as lights, fans, a TV, a Wi-Fi router and phone chargers give far longer backup than heating appliances. Add up the wattage to see how many hours you will get.
How do I calculate backup time for my winter load?
Add up the wattage of the appliances you want to run, then compare the declared backup hours of battery models at a load close to yours.
Does winter reduce inverter battery backup?
Okaya states that real backup varies with temperature, battery age, the inverter used and state of charge. Keep the battery in a dry, well-ventilated spot.
Which Okaya inverter battery is right for my home?
Okaya suggests around 160Ah for a typical 2BHK, 210Ah for larger homes or longer backup and 260Ah for heavy loads. Add up your wattage to confirm.
How often does an Okaya inverter battery need water?
Okaya states that most models need only 1 to 2 top-ups a year. Use the water specified in the product manual or by Okaya Care.
How many batteries does an inverter need?
It depends on the inverter's system voltage: one battery for 12V, two for 24V and four for 48V.
What warranty do Okaya inverter batteries have?
Total warranty is 48 to 66 months depending on the model, made up of a flat period and a pro-rata period.
To compare the current inverter battery price, Okaya inverter battery price and the option to buy inverter battery online for each capacity, visit the Okaya shop.
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