[RE-wrenches] Digital LA Battery Electrolyte Tester

[William Miller]

David:

https://www.misco.com/refractometer-applications/battery-refractometer/

I use a narrow plastic pipette/dropper. I just suck the sample back out of
the sample well after reading and squirt it back in the cell it came from.
I don’t clean out the well. I figure if there is a trace amount of sample
left over it will be diluted by a large factor compared to the volume of
the next sample.

William Miller
Miller Solar.com
805-438-5600
www.millersolar.com

On Mon, Jun 1, 2026 at 2:04 PM David Palumbo via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> Wrenches,
>
> Looking for advice on digital electrolyte refractometers for testing lead
> acid specific gravity.
> I have never used a digital refractometer. Only the old school
> refractometers that are not that easy to read accurately.
>
> Digital units vary tremendously in price. And I'm wondering how difficult
> it is to clean/neutralize the chamber where the electrolyte drops go? I
> need to test multiple cells and get accurate readings on every cell.
>
> Has anybody here used one of these, and can you share advice on this topic?
>
> David Palumbo
> Hyde Park, VT
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