[RE-wrenches] Lithium Ion Batteries
Ray
ray at solarray.com
Sun Mar 22 15:20:04 EDT 2020
The possibility of dark start and 30% higher cost are 2 reasons we have
preferred Simpliphi lately. Simpliphi just requires resetting its
breaker on top of the battery. Also the Simpliphi allows more layouts,
so it doesn't stick out into the room. We have one customer that has a
system with each, and so far they prefer the Simpliphi over the Blue
Ion. Both are high quality solutions, but being able to afford more kWh
of storage solves many issues.
Ray Walters
Remote Solar
303 505-8760
On 3/22/20 3:14 PM, Sindelar Solar wrote:
>
> Specifically with Blue Ion, the installation manual recommends 48V as
> LBCO, but also recommends setting it a bit higher:
>
> "Recommended Low Voltage Disconnect Setting: 48 VDC (~2-10% State of
> Charge)
> BMU will power down the Blue Ion 2.0 cabinet at 44 VDC (<1% State of
> Charge)
> Based on system discharge patterns, SoC and voltage correlations will
> vary.
> We recommend you err on the side of caution with a higher LVD setting
> and adjust as necessary.
> To prevent a dark start event, we recommend leaving a little reserve
> “fuel in the tank”."
>
> I have used 48VDC with success, and had one system indeed shut down at
> 44V, leaving 1% left to reboot.
>
> Allan
>
> On 3/22/2020 12:44 PM, Ray wrote:
>>
>> Blue Ion, and Simpliphi that I know of.
>>
>> Ray Walters
>> Remote Solar
>> 303 505-8760
>> On 3/21/20 2:48 PM, Dave Angelini Offgrid Solar wrote:
>>>
>>> I see what you mean Ray. Sorry I misread your mail. There are not
>>> too many batteries out there that need LBCO above 48V. Which ones
>>> are you talking about please?
>>>
>>> *Dave Angelini Offgrid Solar*
>>>
>>> *"we go where powerlines don't" http://members.sti.net/offgridsolar/
>>> e-mail offgridsolar at sti.net <mailto:offgridsolar at sti.net> text 209
>>> 813 0060*
>>>
>>> On Sat, 21 Mar 2020 11:18:21 -0700, Dave Angelini Offgrid Solar
>>> <offgridsolar at sti.net> wrote:
>>>
>>>> Hi Ray,
>>>>
>>>> Which XW? There are 3 now. The old graybox XW defaults at 44V LBCO
>>>> and the range is 40 to 48V. There also was firmware back in its day
>>>> that got older units updated. Schneider still has the firmware
>>>> under discontinued products.
>>>>
>>>> XW+ is default 44V and adjustable 36 to 44 vdc.
>>>>
>>>> XW pro is running downstairs and I will take a look. It would be my
>>>> guess that it is the same as XW+. I think one needs to be sure they
>>>> are in Advanced settings to tweak LBCO also.
>>>>
>>>> I am not plugging Schneider and have done work for both Outback and
>>>> Schneider as well as my clients. Hope this helps.
>>>>
>>>> *Dave Angelini Offgrid Solar "we go where powerlines don't"
>>>> http://members.sti.net/offgridsolar/ e-mail offgridsolar at sti.net
>>>> <mailto:offgridsolar at sti.net> text 209 813 0060*
>>>>
>>>> On Sat, 21 Mar 2020 11:46:21 -0400, Ray <ray at solarray.com> wrote:
>>>>
>>>> We've been having good luck with SImpliphi, the pricing has
>>>> recently gotten much more competitive. As it's names states,
>>>> its simple. Each 3.8 kWh unit has an 80 amp breaker built into
>>>> the top, weigh about 75 lbs, and are a bit smaller than an L16
>>>> but with carry handles. We use an insulated 2 pole combiner
>>>> block to run all the parallel conductors to the main 2/0
>>>> cable. No monitoring, but they do have an handy setup guide
>>>> with recommended settings, specific for each manufacturer
>>>> (including Outback).
>>>>
>>>> Note to all: Schneider XW can still not set its LVD above 48,
>>>> which basically makes it incompatible with most Li+ batteries.
>>>> Their tech support has been abysmal as well. We're looking
>>>> forward to them as one of the larger companies in the business,
>>>> to put additional resources into their engineering, and come
>>>> out with at least a firmware update to correct this problem.
>>>>
>>>> Ray Walters
>>>> Remote Solar
>>>> 303 505-8760
>>>>
>>>> On 3/20/20 3:59 PM, David Katz wrote:
>>>>
>>>> Hello Wrenches,
>>>> I am working with some people that want to use a 20 kw-hour
>>>> to 30 kw-hour 48 volt lithium-ion battery with an Outback
>>>> Radian and Outback FM charge controllers.
>>>> They are considering using Discover, Blue-Ion, Battle Born
>>>> or SimpliPhi batteries.
>>>> Does any one have any recommendations of which battery
>>>> functions best with the Outback system.
>>>> Thanks,
>>>> David Katz
>>>>
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> --
>
> *Allan Sindelar*
> allan at sindelarsolar.com <mailto:allan at sindelarsolar.com>
> NABCEP Certified PV Installation Professional
> New Mexico EE98J Journeyman Electrician
> Founder (Retired), Positive Energy, Inc.
> *505 780-2738 cell*
>
>
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