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Deka Unigy 12AVR90 Battery
Deka Unigy 12AVR90 Battery
Deka Unigy 12AVR90 Battery - 12V 82.1 Ah Top Terminal Telecom AGM
Warranty
What the Flyer Specifies
- IPF plate technology - East Penn forms each plate individually, which is why the flyer can guarantee 100 percent initial string capacity when tested to IEEE 1188.
- Leak-tested construction - heat-sealed case and cover, epoxy-sealed posts, and self-sealing valves with flame arrestors, each 100 percent tested at the factory.
- Standards named by East Penn - designed to meet GR-4228, meets or exceeds IEEE recommended practices, UL recognition, UL 1973 certification for energy storage.
- Relay rack fit - a 48V string of four fits a 23-inch relay rack tray per the flyer.
- Charge current window - 15.5 amps maximum and 4.7 amps minimum per block, from the Unigy I installation manual.
Technical Specifications
| Deka Unigy 12AVR90 Specifications | |
|---|---|
| Part Number | 12AVR90 (also searched as 12AVR 90, deka 12avr90, unigy 12avr90) |
| Battery Type | AGM VRLA with IPF plate technology, top terminal, telecom float service |
| Nominal Voltage | 12V |
| Nominal Capacity | 82.1 Ah at the 8-hour rate to 1.75 VPC at 77°F (10.3 A for 8 hours) |
| Discharge, 1-hour rate | 57.3 A to 1.75 VPC |
| Discharge, 4-hour rate | 18.7 A to 1.75 VPC |
| Discharge, 20-hour rate | 4.4 A to 1.75 VPC |
| Discharge Current Limits | 0.93 A minimum, 282 A maximum to 10.50V (Unigy I manual, Form 0902) |
| Positive Plate | Greater than 98% pure lead, tin-calcium alloy |
| Negative Plate | Pure lead, calcium alloy |
| Terminal Type | Top access, 1/4-20 threaded insert, epoxy-sealed posts |
| Length | 12.01 inches (305.2 mm) |
| Width | 6.56 inches (166.7 mm) |
| Height | 8.24 inches (209.3 mm) |
| Weight | 64.5 lbs (29 kg) |
| Float Charging Voltage | 13.50V per battery ±0.5% at 77°F (range 13.42V to 13.57V) |
| Charge Current | 15.5 A maximum, 4.7 A minimum (Unigy I manual, Form 0902) |
| Case Material | Flame-retardant polypropylene, UL 94 V-0, >28% limiting oxygen index |
| Valves | Low positive pressure, self-sealing, flame arrestor |
| Standards | GR-4228 (designed to meet); IEEE recommended practices; UL recognition; UL 1973 |
| Design Life | 10 years in float applications at 77°F (East Penn) |
| Warranty | 1 year (East Penn, Unigy I top terminal tier, Form 0985) |
| Minimum Order | 4 units |
Where This Battery Is Used
- 48V reserve strings at mid-sized remote sites - four blocks in series where a 70 Ah string runs short and a 100 Ah string does not fit the tray.
- Relay rack trays - the 23-inch tray fit East Penn calls out on the flyer.
- Controls and signaling float loads - applications sized in ampere-hours over hours, on a maintained float charge.
Ordering and Freight
Frequently Asked Questions
Is the 12AVR90 a 90 Ah battery?
East Penn rates it at 82.1 ampere-hours at the 8-hour rate to 1.75 volts per cell at 77°F. The 90 is the model designation. Size the string on 82.1 Ah, and if the reserve calculation needs a true 90 or more, the 12AVR100 at 94.1 Ah is the next block in the line.
Will the 12AVR90 fit where a 12AVR75 sits?
In height and width, yes: both are 8.24 inches tall and 6.56 inches wide. The 12AVR90 is 1.81 inches longer at 12.01 inches, so check the tray length and the spacing between blocks before ordering. Weight goes from 54 to 64.5 lbs per block, which most shelves rated for the smaller unit carry without trouble, but confirm the shelf rating if it is stacked.
What float voltage does the 12AVR90 want?
13.50 volts per battery at 77°F, with an acceptable band of 13.42 to 13.57 volts, which is 2.25 volts per cell. The Unigy I manual publishes a temperature compensation chart around that figure, dropping the float setting as the room warms. A plant held above the band shortens the life of every block on it; a plant held below it undercharges the string. Set it to the chart and record the setting.
Why does East Penn publish a minimum charge current?
Because a rectifier plant shared across strings can starve one of them. The Unigy I manual sets 4.7 amps as the minimum and 15.5 amps as the maximum charge current for the 12AVR90. Keeping recharge inside that window returns the block to full charge after an outage without overheating it, and it is one of the settings a specialist confirms with you when a new string goes onto an existing plant.
Send the quantity, your delivery ZIP and your requested-by date. A specialist confirms availability, the warranty term, volume pricing and freight in writing, with no obligation to buy.
Call 1-877-775-4381 · battery specialists, not a call centerWARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov (State of California only).