Stationary Vented Nicad batteries

[SAkieran]

i have been asked to look into this and see if it exists. i have researched and only found stationary vented lead acid. i haven't come across stationary vented Nicad. i am looking for a descriptive definition but it difficult to find, can anyone assist me regarding this. thanks in advance

 

[BrianG]

'Vented' NiCad batteries immediately suggests high capacity 'wet' cell types. Smaller NiCad batteries are unvented, except for the safety valve. Like lead-acid wet cells, banks of NiCad are topped up with distilled water, but are alkaline as the electrolyte is a dilute potassium hydroxide solution. Maintenence equipment should therfore be kept separate from that used for any lead-acid batteries that may be installed at the same location.

 

[ScottyUK]

Check out SAFT and Hoppecke as a couple of manufacturers.


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If we learn from our mistakes I'm getting a great education!

 

[raithrovers1]

Alcad produce a range called Vantage and Vantex. These are recombination Nicad cells that they claim do not require topping up during their 20 year life if charged at the correct voltage and temperature.
See

http://www.alcad.com

UPS engineer

http://www.calibrepower.co.uk

 

[ScottyUK]

SAFT make the Uptimax and Hoppecke the FNC-VR which use similar recombination technology to achieve similar topping up intervals. Apologies to Alcad, I was trying to think of their name yesterday!


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If we learn from our mistakes I'm getting a great education!

 

[Warpspeed]

These are all excellent batteries.
I hope your pockets are deep.

 

[SAkieran]

I won't be paying, its a client requirement.

thanks for all the answers

 

[ScottyUK]

Update - 'alledgedly' SAFT and ALCAD Ni-cads are 'very similar' and are being made in the same works in Sweden.



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If we learn from our mistakes I'm getting a great education!