Green policy helps in battery contract win

An Exide Technologies product story
Edited by the Engineeringtalk editorial team Sep 19, 2005

A battery manufacturer's willingness to re-use existing cases in a major train coach refurbishment programme has helped it secure a tender from Porterbrook Leasing.

A battery manufacturer's willingness to re-use existing cases in a major train coach refurbishment programme has helped it secure a tender from Porterbrook Leasing.

Exide Technologies has supplied 110 sets of batteries for a major refurbishment of Mark 3 coaches being undertaken by Bombardier Transportation in Derby.

The turnkey refurbishment programme is being carried out on part of One Anglia's fleet which services the London Eastern region.

It involves 110 carriages for four trains, each requiring 16 cells.

Work started in March and is due for completion by January 2006.

The contract for the batteries, which will be used for carriage lighting, communications and air conditioning was put out to tender, but only Exide was willing to be flexible enough to take the existing battery crates, remove the old cells and to supply new cells in the existing crates.

Although the batteries have a service life of 7 years, the crates can last up to 50 years.

The old batteries will be recycled as far as is practicable.

Each battery is a conventional vented lead acid battery, rated at 148Ah and will receive a float charge from the train.

Because the float voltage is regulated below the gassing voltage, electrolyte loss will be minimised and topping-up will only be required four times a year.

The carriages were first built in 1975 and are now due for a Code 3 overhaul with new underframe.

This will involve new interiors and the installation of one disabled toilet per train.

The battery, air-conditioning and braking systems will be overhauled as well as the gangways.

David Hurst, Account Manager from Exide comments: "We are very pleased to be involved in this refurbishment programme for one of the country's largest train leasing companies".

"Our batteries are manufactured under a stringent production framework that seeks to minimise the use of resources and to recycle materials used in the manufacturing process wherever possible".

"The next logical step is to recycle components wherever possible once they have reached the end of their service life".

"Both Porterbrook Leasing and Bombardier have been very progressive in their tendering requirements to insist on such environmentally friendly practices".

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