The right inverter battery depends on three things: the wattage you want to run, the backup hours you need and the system voltage of your inverter. This guide shows how to work through each, and how Okaya's tubular battery for inverter range, from 90Ah to 310Ah, fits common home needs.
Answer three questions before you look at any battery:
1. Which appliances must run during a power cut? List the lights, fans and devices, and note the wattage printed on each.
2. How many hours of backup do you need? Think of your usual power-cut length, not the longest one.
3. What inverter do you have or plan to buy? Its system voltage decides how many batteries you need.
The inverter power calculator adds up the wattage for you, and you can then use that load to compare the declared backup hours of different battery models.
Inverter batteries are built in different plate constructions. Okaya's inverter range is tubular. Within it there are three container designs: the compact 90Ah JXT, SJT (Super Jumbo Tubular) for 110Ah to 160Ah, and TT (Tall Tubular) for 160Ah to 310Ah. The current range has 13 models across 9 capacities, with total warranties of 48 to 66 months.
Okaya suggests these starting points. Confirm with your own wattage before you decide:
1. 90Ah for compact needs such as a few lights and a fan.
2. 160Ah for a typical 2BHK home.
3. 210Ah for larger homes or longer backup.
4. 260Ah for heavy loads.
5. 310Ah for commercial use such as shops and offices.
For the full selection steps, read how to choose the best inverter battery.
Your inverter's system voltage decides the battery count: one battery for a 12V inverter, two for 24V and four for 48V. When identical batteries are connected in series, the system voltage increases while the Ah rating stays the same.
Check the declared backup hours 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; why Certified Backup Hours matter explains how to read them. 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): 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.
Real backup varies with temperature, battery age, the inverter used and the battery's state of charge. Okaya states that XBD+ gives up to 15 to 20% longer backup than a conventional tubular battery of the same Ah capacity.
1. Declared backup hours: Okaya prints CBH on the packaging.
2. Recharge: Okaya states that its SJT batteries recharge about 15% faster than conventional Jumbo Tubular batteries.
3. Upkeep: most models need only 1 to 2 water top-ups a year, and six ceramic water-level indicators show the level. Use the water specified in the product manual or by Okaya Care.
4. Design: SJT has all water inlets on one side in a 6x1 layout, and Okaya's SJT product page lists a vent-plug and float design.
5. Warranty: 48 to 66 months depending on the model, made up of a flat period and a pro-rata period, with paperless registration.
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 your wattage and backup hours. Okaya suggests around 160Ah for a typical 2BHK, 210Ah for larger homes and 260Ah for heavy loads.
How do I choose an inverter battery for my power needs?
List the appliances you need during a power cut, add up their wattage, decide the hours you need and match the capacity to your inverter's system voltage.
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.
How many hours of backup does a 160Ah battery give?
The 160Ah TT with a 60-month warranty is certified at 8:45 at 200 W and 20:15 at 100 W. Real backup varies with temperature, battery age and the inverter used.
What type of battery does Okaya make for inverters?
Okaya's inverter range is tubular, in JXT (90Ah), SJT (110Ah to 160Ah) and TT (160Ah to 310Ah) designs.
How often does an 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.
What warranty does an Okaya inverter battery have?
Total warranty is 48 to 66 months depending on the model, made up of a flat period and a pro-rata period.
How do I contact Okaya for battery support?
Message Okaya Care on WhatsApp at +91 9818 909090 or write to care@okaya.in. You can also use the dealer locator on okaya.in to find nearby Okaya dealers in your area.
To compare the current battery price and Okaya inverter battery price for each capacity, or to order an inverter battery online, visit the Okaya shop.
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