[RE-wrenches] Second Life Batteries

[Ray]

Funny because none of the Lead acid batteries we've used off grid all 
these years are UL listed.

Ray Walters


On 10/19/17 3:28 PM, Dave Angelini Offgrid Solar wrote:
> They need a bit more than UL to move them around and for fire if a
> home/commercial also.. --Dave
>
>
> Reliability & Certification
> Safety
> Cell
> UL1642
> Battery Pack
> CE / RCM / FCC / TUV (IEC 62619) / UL1973
> Hazardous Materials Classification
> Class 9
> Transportation
> UN38.3 (UNDOT)
> Ingress Rating
> IP55
>
>
> Dave
>> Hello Wrenches,
>>
>> Here is feedback on the second life batteries
>> from Morgan Hager, member of the group who will
>> be working on the project. I sent her the
>> information provided by the list, and asked for
>> more information. Below is her reply.
>>
>> *****************************************************************
>> Morgan Hager <8welloiledmachines at gmail.com>
>>
>> Thanks for the battery feed back.  In
>> anticipation of used EV batteries coming to the
>> market in mass, UL has developed specifications
>> for second life batteries.  I am not sure if they
>> are complete yet, the goal was this year.  This
>> is where I want to start before building.  There
>> are also already commercial products available
>> using repurposed 18650's so there must be some
>> kind of benchmark or reference.  More research needed.
>>
>> Also:
>>
>> Here's a good article about this. Not the standards themselves however:
>>
>> <https://www.forbes.com/sites/peterdetwiler/2016/08/24/ul-working-to-ensure-used-ev-batteries-safely-re-purposed/?c=0&s=trending#383524bf1365>https://www.forbes.com/sites/peterdetwiler/2016/08/24/ul-working-to-ensure-used-ev-batteries-safely-re-purposed/?c=0&s=trending#383524bf1365
>>
>> One problem I see is that these standards are for
>> a stationary application and we want to build a
>> vehicle pack. Still seems a good place to start.
>>
>> *******************************************************************
>>
>> It looks like this isn't just a crazy way to blow
>> ourselves up, but a technology that is in the wings.
>> any feedback would be welcome.
>>
>> Cheers,
>>
>> Drake
>>
>> Drake Chamberlin
>> Athens Electric LLC
>> OH License 44810
>> CO License 3773
>> NABCEP Certified Solar PV
>> 740-448-7328
>>
>>
>> At 05:18 PM 10/5/2017, you wrote:
>>> As has been said, and very well again by Larry, one needs to know exactly
>>> what type of Lion chemistry they are dealing with.
>>>
>>> Probably the best place to learn at this time is automotive electric car
>>> hobbyist or the offgrid Prismatic battery folks.
>>>
>>> It took me a year to learn enough about the LG Chem RESU10 before I took
>>> it off the dolly and moved the bolt cutters away from it.
>>>
>>> It lives in the garage and has an earthquake strap now as that seems to
>>> be
>>> the biggest hazard it presents. Flooding not good either:)
>>>
>>> --Dave
>>>
>>>
>>>
>>> Dave Starlight Solar Power SystemsDave
>>>> If you are going to play without knowledge, never have these battery
>>> cells
>>>> near anything you are not willing to loose to fire. Worst case is you
>>> burn
>>>> something that you did not intend to. Might be something cheap or your
>>>> home and all your possessions or your eyes and skin. If that happens,
>>>> don’t blame the battery.
>>>>
>>>> Larry
>>>>
>>>> On Oct 5, 2017, at 12:44 PM, Drake
>>> <drake.chamberlin at redwoodalliance.org>
>>>> wrote:
>>>>
>>>> Those are great arc-flash photos. Are we really getting into a serious
>>>> risk of this sort of situation with a Li-ion battery? What really
>>> happens
>>>> in a worst-case-scenario situation with them? How many people have
>>> blown
>>>> themselves up to date? :-)
>>>>
>>>> Thanks,
>>>>
>>>> Drake
>>>>
>>>>
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>>>
>>> Dave Angelini Offgrid Solar
>>> "we go where powerlines don't"
>>> http://members.sti.net/offgridsolar/
>>> e-mail  offgridsolar at sti.net
>>> text 209 813 0060
>>>
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>
> Dave Angelini Offgrid Solar
> "we go where powerlines don't"
> http://members.sti.net/offgridsolar/
> e-mail  offgridsolar at sti.net
> text 209 813 0060
>
> _______________________________________________
> List sponsored by Redwood Alliance
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