[RE-wrenches] Huge battery bank recommendation

Tue Mar 11 12:37:16 PDT 2014

Ray.....i do not have the link to the warranty....our salesman presented us
with a variety of options ranging from 5 years upto 20 years.....just like
other manufacturers they had prorating levels with each option.....If asked
i am sure they will provide you with any information you want in regards to
the warranty....

Allan.....yes in fact we were also surprised with the low voltage settings
that they specify....In one system we installed a 3200Ah battery bank and
trying to coordinate the settings they specify with the programmable
settings offered in the Sunny Islands was an exercise in it self....They
have different terminology than is common in most RE system charging
parameters....making sure we were all talking about the same parameters was
the hardest factor....If i remember correctly the absorb and equalize
settings were almost the same per the manufacturer.
I could not tell you much about the lead -selenium technology or the
tubular positive plates with any expertise.....
The large system we installed these batteries on was specified to use the
longest possible life span batteries  coupled with high cycling
capability....At the time they were the only company we could find willing
to put the 20 year warranty in writing apart from some sealed Unigy
batteries which were far more expensive..This was a AC coupled grid
interactive system and so the batteries are in standby 95%+ of the
time....We have a contract to do routine maintenance on the system and have
only had to add water once per year....even then it was not necessary but
to set it on course till the next time we are scheduled to inspect, 1 year
later.
The customer has had very few power outages but did have one for 4 days
last winter and the battery bank worked flawlessly....We really like the
clear cases for quick electrolyte level monitoring.  The cells have flip
tops for easy access.
My overall take on these batteries is that they are primarily designed for
standby systems.  We haven't used them in an off grid configuration.  They
have been in for 3 years with no sign of aging...I think they are a company
that is only beginning to realize the possibility of the RE market and
havent focused much effort in that direction in the past....
SBS was easy to work with, and provided good support for the seismic
racking and spill containment system....with more documentation than i am
used to receiving from our main suppliers...
Hope that helps...
Cheers,

Sunny Regards,
Kirpal Khalsa
NABCEP Certified PV Installation Professional
Renewable Energy Systems
www.oregonsolarworks.com
541-218-0201 m
541-299-0402 o

On Tue, Mar 11, 2014 at 8:42 AM, Ray Walters <ray at solarray.com> wrote:

>  Hi Kirpal;
>
> I see that the SBS batteries are rated to 1200 cycles to 80% DOD, but I
> can't find the warranty on their website. Do you have a link to that?
>
> R.Ray Walters
> CTO, Solarray, Inc
> Nabcep Certified PV Installer,
> Licensed Master Electrician
> Solar Design Engineer303 505-8760
>
> On 3/11/2014 9:26 AM, Kirpal Khalsa wrote:
>
> Mac...good morning....that is a big battery bank!....We have used the SBS
> Batteries for large battery banks....They offer multiple warranty options
> including upto 20 years.  They are tubular plates with clear outer cases
> which make the electrolyte levels really easy to monitor and fill....They
> come with insulated cell interconnects with testing ports, they offer
> seismic racking custom designed to fit your battery bank, as well as spill
> containment trays and acid neutralizer kits for the spill containment
> trays.  We have been very happy with their performance.  They offer a 2V
> FLA cell at 4000Ah @ the 20 hr rate.  They are a high quality product made
> in the USA and worth looking at.
> Here is the link to their website.
>
> http://www.sbsbattery.com/products-services/by-product/batteries/batteries-flooded-wet-cell-batteries/flooded-wet-cell-batteries-stt-series-flooded-2v-cell.html
>  Additionally they offer hydrogen gas alarms for battery rooms.
>
>  I am curious - is this a solar integrated system, if so, what size array
> would be charging the batteries?
> Good luck!
>
>  Sunny Regards,
> Kirpal Khalsa
> NABCEP Certified PV Installation Professional
> Renewable Energy Systems
> www.oregonsolarworks.com
> 541-218-0201 m
> 541-299-0402 o
>
>
> On Tue, Mar 11, 2014 at 8:05 AM, Ray Walters <ray at solarray.com> wrote:
>
>> Consider the HUP Solar One battery, the 125-33.  It has 2490 AH at the 20
>> hr rate.   The warranty is for 2100 cycles to 80% DOD.  Also most of the
>> jumpers are included (bus bars within each 12 v group)
>> We've had nothing but happy customers since we started using the HUPs.
>>
>> R.Ray Walters
>> CTO, Solarray, Inc
>> Nabcep Certified PV Installer,
>> Licensed Master Electrician
>> Solar Design Engineer
>> 303 505-8760
>>
>>
>> On 3/11/2014 8:01 AM, penobscotsolar at midmaine.com wrote:
>>
>>> Mac, for this type of large system we typically use Surrette/Rolls
>>> 2YS31.They are 2430 ah. When we get into battery banks this large we
>>> typically only run two cells deep (front to back) for ease of
>>> maintenance.
>>> I hope your customer has some free time on their hands for maintenance.
>>> Remember, Surrette deep cycle batteries demand a higher than most charge
>>> rate or you will find the life of the cell will be significantly shorter
>>> than with proper charging. I'm sure your local battery distributor or
>>> Jamie Surrette can send you the tech stuff on these batteries. Any way it
>>> goes, this is a very big battery bank. Good luck!
>>>
>>> Daryl DeJoy
>>> NABCEP Certified PV installer
>>> Penobscot Solar Design
>>>
>>>
>>>
>>>  Good point Jason.  To clarify this is a 48V system.
>>>>
>>>> Thanks
>>>>
>>>>
>>>> On Tue, Mar 11, 2014 at 7:44 AM, Jason Szumlanski
>>>> <jason at fafcosolar.com>wrote:
>>>>
>>>>  Not that I have an answer for you, but I'm curious, too. You need to
>>>>> specify voltage to get a good answer.
>>>>>
>>>>> Jason Szumlanski
>>>>>
>>>>> Fafco Solar
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> On Tue, Mar 11, 2014 at 9:24 AM, Mac Lewis <maclewis1 at gmail.com>
>>>>> wrote:
>>>>>
>>>>>  Hi wrenches,
>>>>>>
>>>>>> I am consulting on a job that requires an 8000 Ahr battery bank.  This
>>>>>> is
>>>>>> quite a bit beyond my normal battery bank realm.  What would you
>>>>>> recommend
>>>>>> for this?
>>>>>>
>>>>>>   Thanks in advance
>>>>>>
>>>>>> --
>>>>>>
>>>>>>
>>>>>>
>>>>>> Mac Lewis
>>>>>>
>>>>>>
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>>>> --
>>>>
>>>>
>>>>
>>>> Mac Lewis
>>>>
>>>> *"Yo solo sé que no sé nada." -Sócrates*
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