[RE-wrenches] Checking Specific Gravity, correct procedure.

[Jay]

Hi William

I’m wondering what specific batteries you did this test on

Thx
Jay

> On Feb 23, 2021, at 4:32 PM, William Miller <william at millersolar.com> wrote:
> 
> Open the link. It’s all there. 
> 
> William Miller
> www.millersolar.com
> 
>>> On Feb 23, 2021, at 2:32 PM, Howie Michaelson <Howie.Michaelson at gmail.com> wrote:
>>> 
>> 
>> William,
>> How much of a difference did you see in readings after an equalize charge before adding water vs. after adding water and doing a short bulk charge?
>> Howie
>> Howie Michaelson
>> Sun Catcher
>> NABCEP Certified Solar PV Installer™
>> Solar Electric & Heat Pumps Systems Sales & Service
>> 802-272-0004
>> 
>>> On Tue, Feb 23, 2021, 5:27 PM William Miller <william at millersolar.com> wrote:
>>> Wrenches:
>>> 
>>>  
>>> 
>>> If you recall, I had asked the question: After equalizing batteries, should I check SG before or after watering?  I performed the test I had promised to do.  The answer is, add water first.
>>> 
>>>  
>>> 
>>> Here is the report on my test:  Link
>>> 
>>>  
>>> 
>>> Conclusion: Here is the proper order of steps to check Specific Gravity:
>>> 
>>> 1. Verify water level in cells is above the moss-guard. Add water only to bring water to top of moss-guard if needed.
>>> 
>>> 2. Run Equalizing charge.
>>> 
>>> 3. Add distilled water to all cells to bring electrolyte to recommended level.
>>> 
>>> 4. Apply bulk charge voltage to batteries for 30 minutes to mix electrolyte.
>>> 
>>> 5. Test and record Specific Gravity.
>>> 
>>>  
>>> 
>>> It seems obvious now, but I had to test it out…
>>> 
>>>  
>>> 
>>> William
>>> 
>>>  
>>> 
>>>  
>>> 
>>> Miller Solar
>>> 
>>> 17395 Oak Road, Atascadero, CA 93422
>>> 
>>> 805-438-5600
>>> 
>>> www.millersolar.com
>>> 
>>> CA Lic. 773985
>>> 
>>>  
>>> 
>>>  
>>> 
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