[RE-wrenches] High specific gravity

[Mac Lewis]

Hi Jerry,

I think his issue was the generator was starting at around 4-5am on some
days.  I think this may have been a programming error, I lowered the start
voltages on the AGS.


On Tue, Aug 12, 2014 at 8:12 PM, Jerry Shafer <jerrysgarage01 at gmail.com>
wrote:

> does your customer have any issues or is this a first inspection type call
> just to see
> Jerry
>
>
> On Tue, Aug 12, 2014 at 3:54 PM, Mac Lewis <maclewis1 at gmail.com> wrote:
>
>> Hello wrenches,
>>
>> I just went on a service call for a new client.  He had a bank of 4 year
>> old Interstate L16HCL batteries, 2 strings of 8, 48V system, 840Ahr.  We
>> went through the batteries and got specific gravity on all of the cells
>> post-equalization.  I was a bit surprised to see some very high numbers ie
>> over 1.32 for the specific gravities (higher than my refractometer goes).
>>  The specific gravities were all over the place, but I haven't seen numbers
>> this high.  I don't have a great explanation.  He has a stacked 3648 VFX
>> Outback system, and the set-points were 58.8V Absorb for 2 hours, and 62V
>> Equalize for 2 hours.  He has a decent amount of solar (about 3400W) and a
>> 1000W wind generator.
>>
>> Any ideas why the specific gravity is so high on some cells?  Also, is
>> there anything wrong with having SG this high, post-equalization?  For this
>> very standard battery, what settings do you go with (Bulk, Absorb, Float,
>> Eq, and times for Abs and Equalization).
>>
>> Thanks in advance
>>
>>
>>
>> --
>>
>>
>>
>> Mac Lewis
>>
>> *"Yo solo sé que no sé nada." -Sócrates *
>>
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-- 



Mac Lewis

*"Yo solo sé que no sé nada." -Sócrates*
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