Range summary

The Eos range products are designed as standby power for communication, power, military and broadcast and television system. Elegant design with high energy density, latest improved technology are adopted in this series,design life is 15+ years.

The Eos range batteries are ensured the quality with NARADA's QA system according to the ISO9001 standard.

Technical features

• AGM technology is applied.

• 15+ years design life under floating application and cycle life is above 1200 at 80% DOD under temperature 25^oC.

• Reliable seal performance, no acid spillage, recombination efficiency reach 99.9%

• Initial capacity above 100%, the remaining capacity above 94% after storage for 3 months (25^oC)

• low float charge voltage. design (2.25V/cell, 25^oC), extremely consistent float charge voltage

• Flexible connectors and convenient installation

Compliant standards

• IEC60896-21/22

• BS6290 part 4

• Telcordia SR4228

• Eurobat guide

• UL

• Manufactured under system ISO9001(TUV)

Battery installation compliant with:

• EN 50272-2 or local equivalents

Main applications

• Telecommunications

• Uninterruptible power supply (UPS)

• Other applications to provide integrated stored energy system

Products characteristics:

• Recommended float charge voltage for 2V battery: 2.25Vpc at 77^oF(25^oC)

• Self discharge rate :< 2% per month at 77^oF(25^oC)

• Design life: 15+ years at 77^oF(25^oC)

• Shelf life: 6 months at 68^oF(20^oC)

• Valve regulated system, no water addition needed

FAQ

What is a AGM (Absorbed Glass Mat )Battery?

The newer type of sealed nonspillable maintenance free valve regulated battery uses "Absorbed Glass Mats", or AGM separators between the plates. This is a very fine fiber Boron-Silicate glass mat. These type of batteries have all the advantages of gelled, but can take much more abuse. These are also called "starved electrolyte.Ąą Just like the Gel batteries, the AGM Battery will not leak acid if broken.

What are the advantages of the AGM battery?

The advantages of AGM batteries are no maintenance, sealed against fumes, hydrogen, leakage, or non-spilling even if they are broken, and can survive most freezes. AGM batteries are "recombinant" ¨C which means the Oxygen and Hydrogen recombine inside the battery. These use gas phase transfer of oxygen to the negative plates to recombine them back into water while charging and prevent the loss of water through electrolysis. The recombining is typically 99+% efficient, so almost no water is lost. Charging voltages for most AGM batteries are the same as for a standard type battery so there is no need for special charging adjustments or problems with incompatible chargers or charge controls. Since the internal resistance is extremely low, there is almost no heating of the battery even under heavy charge and discharge currents. AGM batteries have a very low self-discharge rate (from 1% to 3% per month). So they can sit in storage for much longer periods without charging. The plates in AGM's are tightly packed and rigidly mounted, and will withstand shock and vibration better than any standard battery.