Refractometer

[ralphclaydon]

Having been losing the Charge on my Trojan T105's i have purchased a refractometer.

I have been in touch with Trojan in USA.

They wanted the Specific Gravity of my batteries after being disconnected for 2 hours.

 

I have results of around 1.300 which i am told is impossible!

Can anyone tell me which scale on refractometer you zero up on?

I zeroed on the lowest reading on the antifreeze scale, is this correct?

[Boredrider]

If your refractometer is similar to mine, then to zero it, you put distilled water on the screen. and adjust the line where the colour changes using a screw. This should be adjusted to the line below the scales, i.e. the lowest line you can see.

 

In my recent experience, it s not impossible to get a reading of up to 1.31, particularly if the batteries are fully charged, or even on float, and they are cold as well.

[ralphclaydon]

H Boredrider

Thanks for that!

That is exactly what i did, set up on the lowest line using Distilled water.

I have results of four batteries, the lowest reading is 1.285 and the highest 1.305.

I really don't know what is going on!!

[nicknorman]

H Boredrider

Thanks for that!

That is exactly what i did, set up on the lowest line using Distilled water.

I have results of four batteries, the lowest reading is 1.285 and the highest 1.305.

I really don't know what is going on!!

See my post on your duplicate thread.