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Lead-acid batteries seal in more power, extend life

Posted: 01 Aug 2006 ?? ?Print Version ?Bookmark and Share

Keywords:EnerSys? lead-acid? PowerSafe? DataSafe? battery?

 EnerSys' new lead-acid battery

EnerSys has upgraded its flooded lead-acid C family of PowerSafe and DataSafe batteries, adding a Slide-Lock post seal design to its PowerSafe CC and CA and DataSafe CX lines to prevent leakage, and a slightly taller jar to increase the electrolyte reserve and enable the batteries to deliver 100 percent initial capacity.

The Slide-Lock post seals allow natural plate growth over time without degrading the seal. It features a tongue and groove jar-to-cover seal to significantly improve the reliability of the seal over a battery's operational life.

The PowerSafe CC and CA batteries are primarily used for utility switchgear and telecommunications applications. The PowerSafe CC's lead-calcium design, along with the additional electrolyte reserve, lowers maintenance due to reduced watering requirements. The lead-antimony alloy grids in the PowerSafe CA batteries maximize performance in high cycling applications and withstand high temperatures. Both families have thick positive plates for long discharge characteristics as well as a square plate configuration for enhanced high-rate performance.

The DataSafe CX is designed for use in high rate, short duration discharge applications such as a UPS. The number of plates, plate thickness and electrolyte reserve have been optimized to ensure maximum performance during short duration discharges. A large copper insert in the post is also used in the CX battery to enhance high rate performance.

The CC, CA and CX batteries have a 20-year life expectancy in float service at 25?C. The PowerSafe CC and CA batteries have a nominal capacity range of 50Ah to 200Ah at the 8h rate while the DataSafe CX features discharge rates ranging from 0.204kW/cell to 0.717kW/cell (end voltage of 1.67Vpc). All posts and connectors are located above the cell cover, simplifying individual cell monitoring and inter-cell resistance measurements. Multi-cell construction minimizes floor space requirements.

The company provides a variety of installation services and preventative maintenance packages. Pricing for PowerSafe C and DataSafe C batteries start at $333 per unit. Delivery is 4 to 6 weeks ARO.

- Vince Biancomano

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