Respirator repair electrics

[devonwoody]

I have a Triton respirator (ten years old) and it has already had a replacement set of rechargeable batteries refitted, Ni-cad 6v dc. made up of 5 times 1.2v RS type batteries. Although the batteries were replaced by professional electricians (who rewire motors) the re set were never satisfactory, they only ran for around a 90 minutes and then not enough air pressure produced after that time.

I reckon I could suffice with a separate battery compartment strapped to my waist with better batteries and a loose wire fed to the motor in the air compartment production system.

What can you suggest?

Photographs attached of present arrangement inside air production area.

Cover off of course.

 

[No skills]

Sounds like the replacement batteries were of the correct voltage but incorrect amperage (apologies if I'm using the incorrect term sparks), do the respirator instructions mention the battery spec at all?

 

[devonwoody]

A friend in Australia has located the batteries and there specification.

http://www.jaycar.com.au/productView.asp?ID=SB2462

(I purchased the respirator in Australia around ten years ago when I was on holiday at the time)

Perhaps I can locate a supplier here in the UK, I really need them with the tags on, I could not cope with silver solder and batteries.

If anyone knows of a supply would be much oblidged.

 

[Racers]

Hi, devonwoody

The closest thing I can find is http://www.maplin.co.uk/tagged-industri ... ies-225150 the VN47B are 5500mAh, so they wouldn't last as long as the ones you linked to.
But if you are having a wast mounted pack them a battery holder and untagged cells would be o/k.

Pete

 

[devonwoody]

Thanks Pete, you put me on the right track found some 9000 ones here.

http://www.conrad-uk.com/ce/en/product/ ... 2V-9000mAh

(the 12v is a misprint I think it should read 1.2)

 

[devonwoody]

I think I have solved the problem for the time being.

Its that battery charging memory problem.

Because the equipment had not been used the past 6 months (I shut down over the winter) I did a 15 hour charge, and yesterday I ran the respirator 8 times at 30 minutes each with 30 minute intervals all day. No problem it lasted the full 4 hours and some power left.

So in future I must not recharge after perhaps only 2 hour use but then I only have 2 hours use left perhaps the next day and have got to wait for a 15 hour charge up before using again.
This is not a good solution, so I shall always have to discharge battery by leaving it on each time and draining the juice and recharge overnight.
I might see if anyone in Oz has got a broken unit to sell owing to spare problems that have occured with Triton products.

 

[devonwoody]

More good news, an Australian member is letting me have his redundant motor and battery compartment for the Triton respirator, same model as mine.

By coincidence another Australian friend said he was leaving Australia for a holiday here end of next week and can bring the part with them.

So my lucky life keeps on and on.