Super Jumbo Tubular vs Tall Tubular Batteries: Which is Better?

Neither design is better for every home. Super Jumbo Tubular (SJT) and Tall Tubular (TT) are the two container formats in Okaya's XBD+ range of tubular battery models. SJT is the lower, more compact design and covers 110Ah to 160Ah. TT is taller and covers 160Ah to 310Ah. Both use tubular plates, XBD+ for longer backup and Certified Backup Hours (CBH) for tested runtime, so the right choice depends on the capacity you need, the height you have available and the warranty you want.

Which should I choose, an SJT or a TT battery?

Decide on capacity and space first, then on warranty.

A. Choose SJT if you need 110Ah to 160Ah and the battery has to fit under a low shelf or in a compact corner. Its container is 317 mm high.

B. Choose TT if you need more than 160Ah, such as 190Ah to 310Ah for larger homes, offices or shops.

C. At 160Ah both designs are available, so decide on the height you have, the warranty you prefer and the water-topping layout you like.

What is a Super Jumbo Tubular (SJT) battery?

SJT is Okaya's lower, more compact tubular battery design. From Okaya's specifications:

A. Capacity: 110Ah, 140Ah and 160Ah.

B. Size: 540 x 210 x 317 mm (about 21.3 x 8.3 x 12.5 inches), tolerance +/- 2 mm.

C. Water topping: all water inlets sit on one side in a 6x1 layout, so topping up is done from one side of the battery.

D. Recharge: Okaya states SJT batteries recharge about 15% faster than conventional Jumbo Tubular batteries. This is not a comparison with TT.

E. Maintenance: a low-antimony alloy and six ceramic water-level indicators. Okaya states that most models need only 1 to 2 top-ups a year.

F. Total warranty: 48 months (24+24) on the 110Ah, 140Ah and 160Ah models, and 60 months (36+24) on a 160Ah model.

What is a Tall Tubular (TT) battery?

TT is the taller design, built for higher capacities. From Okaya's specifications:

A. Capacity: 160Ah, 190Ah, 210Ah, 230Ah, 260Ah and 310Ah.

B. Size: 508 x 198 x 404 mm (about 20.0 x 7.8 x 15.9 inches) for 160Ah to 260Ah, and 510 x 215 x 413 mm (about 20.1 x 8.5 x 16.3 inches) for 310Ah, tolerance +/- 2 mm.

C. Water topping: a vent-plug and float design for spill-free topping.

D. Maintenance: six ceramic water-level indicators, and Okaya states that most models need only 1 to 2 top-ups a year.

E. Total warranty: 160Ah in 54 or 60 months, 190Ah in 60 months, 210Ah in 48 or 60 months, 230Ah in 60 months, 260Ah in 66 months (42+24) and 310Ah in 60 months.

For shops and offices that need a big inverter battery, the 310Ah TT is the largest in Okaya's inverter battery range.

How do SJT and TT batteries compare side by side?

These are the points that decide most purchases:

1. Capacity: SJT covers 110Ah to 160Ah. TT covers 160Ah to 310Ah.

2. Height: SJT is 317 mm high. TT is 404 mm high (413 mm at 310Ah), about 87 mm or 3.4 inches taller from 160Ah to 260Ah.

3. Footprint: SJT measures 540 x 210 mm. TT measures 508 x 198 mm (510 x 215 mm at 310Ah).

4. Water topping: SJT has all inlets on one side in a 6x1 layout. TT uses a vent-plug and float design.

5. Total warranty: 48 to 60 months for SJT and 48 to 66 months for TT, depending on the model.

6. Shared features: both are tubular inverter battery designs with six ceramic water-level indicators, CBH, and XBD+ technology, which Okaya states gives up to 15 to 20% longer backup than a conventional tubular battery of the same Ah capacity.

Which gives longer backup at 160Ah, SJT or TT?

160Ah is the only capacity offered in both designs, so it is the fairest comparison. Both models below carry a 60-month total warranty (36+24). Their Certified Backup Hours are tested under Okaya's UMHD (Urban Metro Heavy Duty) load cycle in NABL-accredited laboratories, in hours:minutes.

A. PROPower 160Ah SJT, 60 months (36+24): 3:05 at 400 W, 4:40 at 300 W, 8:00 at 200 W, 18:40 at 100 W.

B. PROPower 160Ah TT, 60 months (36+24): 3:15 at 400 W, 5:05 at 300 W, 8:45 at 200 W, 20:15 at 100 W.

At the same capacity, the TT's declared figures are a little higher at every tested load, while the SJT's advantage is its lower 317 mm height. Real backup varies with temperature, battery age, the inverter used and state of charge, and CBH figures do not predict lifespan.

What are the CBH test conditions?

Okaya declares CBH under these standard test conditions:

A. Constant-current charging until terminal output reaches 15.5V or above.

B. Specific gravity of 1.25 to 1.26.

C. Open circuit voltage (OCV) of 12.50 to 12.70V.

D. Cut-off voltage at the end of discharge: 10.5V.

E. Test temperature of 27 +/- 2 degrees C.

Okaya states that CBH is achieved after three charge-discharge cycles on a new battery.

Which battery suits my home, office or shop?

Okaya suggests these capacities as a starting point:

A. 160Ah: a typical 2BHK home. It is available in both SJT and TT.

B.210Ah: larger homes that need longer backup (TT).

C. 260Ah: heavy loads (TT).

D. 310Ah: commercial use such as shops and offices (TT).

Also check how many batteries your inverter needs: one for a 12V inverter, two for 24V and four for 48V. A higher-voltage system requires more battery units, which increases the space and total battery-bank cost. When identical batteries are connected in series, the system voltage increases while the Ah rating remains the same. For a step-by-step capacity check, read which inverter battery is best for home, and use the dealer locator to get advice from a nearby Okaya outlet.

How much maintenance do SJT and TT batteries need?

Both designs have six ceramic water-level indicators, so you can check levels without opening the cell, and Okaya states that most models need only 1 to 2 top-ups a year. Use the water recommended in the product manual or by Okaya Care, and top up when the indicators show a low level. To see how these design features support long life, read how SJT and TT designs support long inverter battery life.

What warranty comes with SJT and TT batteries?

Warranty is the total of flat and pro-rata periods and varies by model: 48 to 60 months for SJT and 48 to 66 months for TT. Warranty registration is paperless, and Okaya offers PAN India onsite service. For help, call Okaya Care on +91 9818 909090 or write to care@okaya.in.

Frequently Asked Questions

Which is better, an SJT or a TT battery?

Neither is better for every home. SJT is lower and more compact and covers 110Ah to 160Ah. TT is taller and covers 160Ah to 310Ah. Choose by the capacity you need, the height available and the warranty you want.

What is the difference between a Super Jumbo Tubular and a Tall Tubular battery?

They differ in container design, capacity range and water topping. SJT is 317 mm high, covers 110Ah to 160Ah and has all water inlets on one side. TT is 404 mm high (413 mm at 310Ah), covers 160Ah to 310Ah and uses a vent-plug and float design.

Which has longer backup at 160Ah, SJT or TT?

With the same 60-month warranty, Okaya's declared figures for the 160Ah TT are a little higher at every tested load: 3:15, 5:05, 8:45 and 20:15 at 400 W, 300 W, 200 W and 100 W, against 3:05, 4:40, 8:00 and 18:40 for the 160Ah SJT. Real backup varies with temperature, battery age and the inverter used.

Is an SJT or a TT battery better for a 2BHK home?

Okaya suggests around 160Ah for a typical 2BHK, and that capacity is available in both designs. Choose SJT if shelf height is limited and TT if the taller format fits your space.

Is an SJT battery shorter than a TT battery?

Yes. The SJT container is 317 mm high, about 12.5 inches. The TT container is 404 mm high, about 15.9 inches, for 160Ah to 260Ah.

Does an SJT battery recharge faster than a TT battery?

Okaya's stated figure is that SJT recharges about 15% faster than conventional Jumbo Tubular batteries. It does not state a comparison with TT, and faster recharge does not mean longer battery life.

How often do SJT and TT batteries need water?

Okaya states that most models need only 1 to 2 top-ups a year. Six ceramic water-level indicators help you check levels.

How long do SJT and TT batteries last?

Okaya's category FAQ gives a typical service life of 4 to 6 years with proper care. Total warranty is 48 to 60 months on SJT models and 48 to 66 months on TT models.

What are Certified Backup Hours?

They are backup times Okaya declares for each battery at set loads, tested under the UMHD load cycle in NABL-accredited laboratories and printed on the packaging.

To compare the UPS battery price and cost of inverter battery across SJT and TT capacities, visit the Okaya shop, where each listing shows its own inverter tubular battery price.