Okaya's SJT (Super Jumbo Tubular) battery lists one direct advantage over a conventional Jumbo Tubular battery: it charges about 15% faster. Beyond that, the SJT product page lists taller tubular plates, a 6x1 water-inlet layout, CBH and XBD+ as its design features. This guide separates what Okaya states from what you should compare yourself, for a tubular inverter battery you plan to buy.
Okaya's SJT product page makes two direct comparisons with traditional Jumbo Tubular batteries:
1. Charging: it charges about 15% faster than conventional Jumbo Tubular batteries.
2. Plates: taller tubular plates, which Okaya states give better performance, longer backup and easier water top-up than traditional Jumbo Tubular batteries.
Okaya's data does not list Jumbo Tubular dimensions, backup hours or maintenance figures. For any Jumbo Tubular battery you are comparing, check that battery's own specification sheet.
Okaya's SJT page states that the SJT design is more compact than an equivalent Tall Tubular battery, not than a Jumbo Tubular one. SJT batteries from 110Ah to 160Ah measure 540 x 210 x 317 mm. The inverter battery size of each model is on the product listing, and SJT vs TT inverter batteries compares the two Okaya designs.
Okaya declares Certified Backup Hours for each SJT model, tested under the UMHD (Urban Metro Heavy Duty) load cycle in NABL-accredited laboratories and printed on the packaging. In hours:minutes, at 400 W, 300 W, 200 W and 100 W:
1. 110Ah SJT: 1:45, 2:45, 4:55, 11:30.
2. 140Ah SJT: 2:30, 3:50, 6:35, 15:05.
3. 160Ah SJT, 48 months: 3:00, 4:30, 7:50, 17:20.
4. 160Ah SJT, 60 months: 3:05, 4:40, 8:00, 18:40.
Okaya states that XBD+ gives up to 15 to 20% longer backup than a conventional tubular battery of the same Ah capacity, and that real backup varies with temperature, battery age, the inverter used and state of charge.
Okaya's SJT product page lists these features, which are Okaya's own descriptions:
1. 100% tubular battery in a Super Jumbo container.
2. Six ceramic water-level indicators and a 6x1 layout with all water inlets on one side.
3. A vent-plug design that prevents spills, and a float design for spill-free water topping without removing the float plug.
4. Corner protection and securely fitted terminal protectors for added safety.
5. 99.98% pure lead, pressure die-cast terminals and a PE envelope separator.
6. Factory-charged, ready to use, with paperless warranty registration.
The 140Ah SJT and 160Ah SJT product pages carry the full specifications.
Okaya states that most of its models need only 1 to 2 water top-ups a year. Use the water specified in the product manual or by Okaya Care for your model.
SJT models carry 48 to 60 months of total warranty, made up of a flat period and a pro-rata period. 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. For the SJT range for homes, read SJT inverter battery for home.
Okaya states that SJT batteries charge about 15% faster than conventional Jumbo Tubular batteries and use taller tubular plates. Okaya's data does not list other Jumbo Tubular figures, so compare the specification sheet of the Jumbo Tubular battery you are considering.
Is an SJT battery better than a Jumbo Tubular battery?
Okaya states that SJT outperforms traditional Jumbo Tubular batteries through taller plates and faster charging. Compare declared backup hours at a load close to yours before deciding.
How much faster does an SJT battery charge?
Okaya states about 15% faster than conventional Jumbo Tubular batteries. The inverter's own charging also affects how quickly the battery recovers.
How much backup does a 160Ah SJT battery give?
The 160Ah SJT with a 60-month warranty is certified at 3:05 at 400 W, 4:40 at 300 W, 8:00 at 200 W and 18:40 at 100 W. Real backup varies with temperature, battery age and the inverter used.
How big is an SJT battery?
SJT batteries from 110Ah to 160Ah measure 540 x 210 x 317 mm.
How often does an SJT 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 do SJT batteries have?
SJT models carry 48 to 60 months of total warranty: 48 months (24+24) on the 110Ah, 140Ah and 160Ah 48-month models, and 60 months (36+24) on the 160Ah 60-month model.
What capacities does the SJT range cover?
110Ah, 140Ah and 160Ah, in four models including two 160Ah variants.
To compare the current inverter battery price, Okaya inverter battery price and new inverter battery price for each capacity, visit the Okaya shop.
OKAYA POWER PVT. LTD.
ENERGIS D-7, 3rd & 4th Floor, Rohtak Rd,
Udyog Nagar, Mangolpuri,
New Delhi - 110041, INDIA
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