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Brand: YUASA
Yuasa ENL100-12 12V 108Ah Front Terminal AGM VRLA Battery
Description
Front terminal 12 V block for long-life standby systems
The Yuasa ENL100-12 is a 12 V, 108 Ah (20-hour rate) valve-regulated AGM battery from the ENL series. It is a front terminal design, so the terminals and connections are reached from the front of the cabinet or rack, and the case is only 125 mm wide. The case is flame-retardant ABS rated UL94:V0, and Yuasa gives a design life of 15 years at 20 °C with a EUROBAT classification of Very long life, 12+ years.
Front terminal blocks of this kind are used in telecom, UPS and power plant battery cabinets, and as control and auxiliary supplies at generating stations and substations, where long life and a small footprint matter more than lowest first cost.
Technical specifications
| Parameter | Specification |
|---|---|
| Manufacturer / series | Yuasa, ENL series (ENL100-12/FT/FR/Box) |
| Nominal voltage | 12 V |
| Capacity, 20-hour rate to 1.75 V per cell at 20 °C | 108 Ah |
| Capacity, 10-hour rate to 1.8 V per cell at 20 °C | 100 Ah |
| Dimensions (L x W x H) | 558 (±3) x 125 (±2) x 235 (±2) mm |
| Weight | 41 kg |
| Terminals | M6 female, torque 6 (±0.5) Nm; front terminal |
| Case material | ABS, UL94:V0; flame-retardant (FR) case |
| Float charge voltage at 20 °C | 13.56 V per block (2.26 V per cell), ±1 %; correction -3 mV per cell per °C from 20 °C |
| Cyclic (boost) charge voltage at 20 °C | 14.4 V per block (2.4 V per cell), ±3 %; correction -4 mV per cell per °C |
| Charge current limit | 25 A float; 25 A cyclic |
| Maximum discharge current | 500 A for 1 s; 200 A for 1 min |
| Internal resistance at 1 kHz | 7.5 mΩ |
| Operating temperature | Storage -20 to +50 °C; charge -15 to +50 °C; discharge -20 to +60 °C |
| Self-discharge | About 3 % capacity loss per month at 20 °C |
| Design life / classification | 15 years at 20 °C; EUROBAT Very long life, 12+ years |
| Certifications listed | ISO 9001, ISO 14001, ISO 45001, Underwriters Laboratories |
Installation and charging
The data sheet states that the battery can be operated at orientations up to 90 degrees from upright, that blocks must not be suspended by their handles and that each cell has a low-pressure release valve that reseals. VRLA batteries release hydrogen, which can form explosive mixtures in air, so the battery must not be placed inside a sealed container.
Charging should use the stated float and boost voltages with temperature compensation, and the 25 A current limit. When blocks are connected in series strings, fit a charger that matches the string voltage and the temperature compensation setting.
Selecting an ENL battery
| Model | Voltage | Capacity (Yuasa page) | Type |
|---|---|---|---|
| ENL100-12 (this page) | 12 V | 108 Ah | Front terminal block |
| ENL100-6 | 6 V | 108 Ah | General purpose AGM VRLA |
| ENL160-6 | 6 V | 172.8 Ah | General purpose AGM VRLA |
| ENL320-2 | 2 V | 345.6 Ah | General purpose AGM VRLA |
| ENL480-2 | 2 V | 518.4 Ah | General purpose AGM VRLA |
Choose by system voltage, required runtime and the load profile, and confirm the cabinet depth, because the 558 mm length drives the shelf layout. A similar published battery page is Yuasa NP12-12 sealed lead acid battery.
Documents and quotation
The Yuasa technical data sheet is attached. For a quotation send the model, quantity and the intended use. See UPS and Batteries for further batteries and UPS products.
Datasheets & Documents
- Datasheet Yuasa ENL100-12 technical data sheet Download
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About brand
Yuasa, a brand of Kyoto-based GS Yuasa Corporation with roots going back to 1918, is known for sealed lead-acid batteries used in standby power. Its NP series of valve-regulated batteries serves standby and cyclic duty in UPS units, alarm panels and control cabinets. Seven Star LLC lists the Yuasa NP12-12 and supplies Yuasa sealed lead-acid batteries to industrial and commercial facilities in Oman.
Yuasa NP batteries listed here
The Yuasa NP12-12 is a 12 V, 12 Ah sealed lead-acid battery of the absorbent glass mat type with Faston terminals. In NP designations the first number is the capacity in ampere-hours and the second is the nominal voltage, so NP7-12 would be a 7 Ah, 12 V block. Extra letters after the number mark a variant, such as FR for a flame-retardant case.
Ordering Yuasa batteries: what we need
Send the full type printed on the battery, including any suffix letters, and the quantity. Tell us the equipment it serves, such as a UPS model or a fire alarm panel, and the terminal type on the old battery. Measure length, width and height if the label is missing. For a UPS, state how many blocks are in the string, since they should be replaced together. We also quote Yuasa batteries for buyers elsewhere in the GCC.
Browse YUASA products by category: UPS and Batteries.
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Frequently Asked Questions
What is the capacity of the ENL100-12?
108 Ah at the 20-hour rate to 1.75 V per cell and 100 Ah at the 10-hour rate to 1.8 V per cell, both at 20 °C.
What does front terminal mean?
The terminals are on the front face of the block, so wiring and maintenance are done from the front of a cabinet or rack.
What is the design life?
Yuasa gives 15 years at 20 °C and a EUROBAT classification of Very long life, 12+ years.
What float voltage should be used?
13.56 V per 12 V block at 20 °C, with a temperature correction of -3 mV per cell per °C.
Can it be used in a sealed enclosure?
No. The data sheet warns that VRLA batteries release hydrogen and must not be placed in a sealed container.
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