STT Series Flooded (OPzS Battery)

Lead Selenium Tubular Plate Batteries
12V 55-165Ah, 6V 220-330Ah, 2V 110-3585Ah

6V and 12V tubular plate flooded OPzS batteries with rack and EquaLink

Resources

- STT 2V Data Sheet

- STT 6V, 12V Sheet

- SDS

manual - STT User's Manual

manual - STT Accessories

Related Resources

manual - White Paper

manual - Battery Capacity
Testing

- Battery Rack Configurator

Recombination Plug for flooded lead acid batteries

OPzS / STT
Recombination Caps

Applications

  • Switchgear / Substations
  • Power Generation
  • Microwave Relay Sites
  • Telecommunications
  • Solar / Photovoltaic
  • Oil and Gas

tubular positive grid

Exponential Power has been selling tubular lead-selenium vented batteries for nearly 20 years. Exponential Power was the first company to actively introduce this technology to the US market.

The combination of the tubular positive plates and the lead selenium/ low antimony alloy provides the best possible combination in lead acid plate technology.

The battery world favors tubular positive plates for flooded, gel and AGM applications. STT batteries are manufactured in accordance with OPzS DIN 40736 standards.

STT batteries are manufactured in accordance with OPzS DIN40736 standards.

Lead Selenium/Low Antimony

By utilizing a small amount of selenium in the grid alloy, a dense fine grain structure is produced. This alloy is extremely corrosion-resistant and virtually eliminates inter-granular corrosion which is one of the most common causes of cell failure. A lead selenium cell combines the advantages of both lead calcium and lead antimony cells while exhibiting none of the disadvantages.

Tubular Positive Plate Advantages

Due to increased positive plate surface area, tubular plates have more electrical capacity than flat plates of comparable size and weight.

Perhaps most importantly to stationary applications, the tubular positive grid does not require horizontal bars, which virtually eliminates positive plate growth and therefore post seal leaks and jar cracking. As a result, in applications which require a long service life, tubular plate batteries provide the best and most reliable power.

2V OPzS flooded lead selenium battery OPzS DIN40736

Features

  • 20 year design life @ 77° F
  • Watering intervals: 1–3 years
  • Leak-proof post seal
    • 1200+ cycles @ 80% DOD
    • 2000+ cycles @ 60% DOD
  • 100%+ capacity upon delivery
  • No positive plate growth damage
  • Tank formed plates
  • Safe: zero voltage exposed to personnel
  • Flip-top, easy-fill, flame arrestor vent caps
  • Withstands high temperature applications better than lead-calcium batteries
  • Typically in stock and ready to ship!

STT Kit Includes

insulated flexible intercell connectors OPzS DIN40736
Insulated flexible intercell
connectors standard (top).
  • Intercell-connector cables
  • Jumper cable(s)
  • Flip-top flame arrestor vent caps
  • No-oxide grease
  • Cell numbers
  • Brass wire brush
  • Utility funnel
  • Installation & Operation Manual

Construction

Positive Plate Tubular plate with selenium/low antimony alloy (0.34" thick)
Negative Plate Pasted flat radial structure
Separation Microporous combined with corrugated separator
Case Material Styrene-acrylonitrile (SAN), impact resistant
Cover Material Styrene-acrylonitrile (SAN)
Specific Gravity 1.240 S.G. @ 77°F
Post Design Leak-proof with brass insert
Intercells Fully insulated flexible copper cables (uninsulated bars optional)
Vent Caps Flip-top flame arrestor with dust cap
Temp. Range −4° to 131° F (68° to 77° F recommended)
Float Voltage 2.23 V/cell
Equalize Voltage 2.33–2.40 V/cell

Accessory Ordering Information

Part No. Description
Z1G Hydrometer with glass float (1.100–1.320 scale)
HY-HOLDER Hydrometer holder with drip cup
1353 Thermometer w/SG correction factor table (-20° to 130° F)
STRAP-6FT 6 ft. lifting strap (for P/Ns STT2V100 through STT2V490)
STRAP-8FT 8 ft. lifting strap (for P/N STT2V600 and larger)

Technical Data for STT Flooded Lead-Acid Batteries

Part No.

8 Hr Ah Rate

V

Battery Dimensions
L x W x H (in.)

Weight w/
Electrolyte (lb.)

Electrolyte Weight (lb.)

Electrolyte
(Gallons)

STT12V50

55 12 10.7 x 8.08 x 15.1 86.0 23.8 2.3

STT12V100

110 12 10.7 x 8.08 x 15.1 107 22.5 2.2

STT12V150

165 12 15.0 x 8.08 x 15.1 149 31.7 3.1

STT6V200

220 6 10.7 x 8.08 x 15.1 101 24.2 2.3

STT6V250

275 6 15.0 x 8.08 x 15.1 130 31.9 3.1

STT6V300

330 6 15.0 x 8.08 x 15.1 144 30.4 2.9

STT2V100

110 2 4.06 x 8.11 x 16.1 28.8 12.3 1.2

STT2V150

165 2 4.06 x 8.11 x 16.1 34.2 11.1 1.1

STT2V200

220 2 4.06 x 8.11 x 16.1 39.6 9.90 1.0

STT2V250

275 2 4.89 x 8.11 x 16.1 46.2 11.0 1.1

STT2V300

330 2 5.71 x 8.11 x 16.1 55.0 13.2 1.3

STT2V350

395 2 4.89 x 8.11 x 20.7 61.6 14.3 1.4

STT2V420

475 2 5.71 x 8.11 x 20.7 73.7 17.6 1.7

STT2V490

550 2 6.54 x 8.11 x 20.7 85.8 22.0 2.1

STT2V500

550 2 5.71 x 8.11 x 27.6 92.6 28.7 2.9

STT2V600

660 2 5.71 x 8.11 x 27.6 102 26.4 2.6

STT2V700

755 2 8.27 x 7.52 x 27.6 132 37.5 3.8

STT2V800

865 2 8.27 x 7.52 x 27.6 141 35.2 3.4

STT2V900

975 2 8.27 x 9.18 x 27.6 161 44.1 4.5

STT2V1000

1090 2 8.27 x 9.18 x 27.6 170 44.0 4.3

STT2V1200

1310 2 8.27 x 10.9 x 27.6 203 52.8 5.1

STT2V1375

1605 2 8.27 x 10.9 x 33.5 244 77.1 7.8

STT2V1500

1755 2 8.27 x 10.9 x 33.5 247 66.0 6.4

STT2V1750

2047 2 8.35 x 15.7 x 32.6 296 78.0 7.5

STT2V1875

2200 2 8.35 x 15.7 x 32.6 328 101.4 10.2

STT2V2000

2340 2 8.35 x 15.7 x 32.6 330 88.0 8.5

STT2V2250

2630 2 8.35 x 19.2 x 32.6 405 130.0 13.1

STT2V2500

2920 2 8.35 x 19.2 x 32.6 418 110 10.6

STT2V3000

3585 2 8.35 x 22.7 x 32.6 495 136 13.2

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