[OLPC-SF] [support-gang] Power anyone?: Failing adapters and batteries

[Christoph Derndorfer]

FWIW: The maintenance team in Caacupé, Paraguay came up with a very 
similar solution (sans the empty PC enclosure that is): 
http://www.flickr.com/photos/christophd/4832718571/in/set-72157624456083615

Cheers,
Christoph

Am 18.11.2011 23:50, schrieb Craig A. Perue:
> Hi Cherry:
>
> As Sameer said we have had a high failure rate in Jamaica too, and so
> some students now have XOs but no chargers. I have searched for a vendor
> of compatible chargers in Jamaica without success.
>
> We have "designed" and developed bulk chargers, which we believe almost
> any school in Jamaica can replicate easily. All it requires is an old PC
> case, PC power supply, and connectors. Pictures are attached.
>
> Regards,
> --
> Craig Perue
> MBA, PMP, CMQ/OE, CISA
> Senior Consultant
> Center of Excellence, Mona School of Business
> The University of the West Indies, Mona
> Kingston 7, Jamaica
>
> Program Manager
> OLPC Jamaica
>
> Tel.: 876-509-0572
> Twitter: craigperue
> http://jm.linkedin.com/in/craigperue
>
>
> On Fri, Nov 18, 2011 at 4:44 PM, Sameer Verma <sverma at sfsu.edu
> <mailto:sverma at sfsu.edu>> wrote:
>
>     On Fri, Nov 18, 2011 at 5:34 PM, Cherry Withers
>     <cwithers at ekindling.org <mailto:cwithers at ekindling.org>> wrote:
>      > Hi Folks,
>      >
>      > Please see a snippet of a report below from our support person in
>     Lubang
>      > Philippines. Can't say our group wasn't bracing for this. The
>     source of the
>      > failures for 1) and 2) is yet to be determined. Our support
>     person there do
>      > not have the equipment nor the time to go in depth on figuring it
>     out (he
>      > did some initial tests based on troubleshooting guidelines available
>      > online). But one thing that's of great concern for our group was the
>      > frequent power outages in the island. We've witnessed the power
>     cycling 5-6
>      > times when we were there. We can't go on replacing these parts
>     until we at
>      > least address a healthy power supply.
>      >
>      > So having said that...I know this had already been done somewhere
>     and we
>      > don't want to re-invent the wheel. I am looking for designs for
>     bulk/gang
>      > chargers (200 laptops) with surge protection built in and which takes
>      > advantage of local materials, and potential to scale (we can't
>     afford solar
>      > panels yet). The link to the XO Bulk charger on the OLPC-SF page
>     gives me an
>      > error.
>      >
>      > Thankfully, the children are managing with charging their laptops in
>      > neighbors homes and the teachers brought extension cords so the
>     ones without
>      > working batteries can work in the classroom. They are managing ok
>     for now.
>      >
>      > Thanks,
>      > Cherry
>      >
>      > -----------------------------------------------------------
>      > Good PM! With regards to our OLPC Program here in Lubang we wish
>     to raise
>      > some concerns on our XO Laptops:
>      > 1.      We already have 30 units of non-working chargers, 20
>     units from the
>      > 1st deployment (launched November 2010) and 10 units for the second
>      > deployment (launched Oct 2011. Four weeks of use!!!).
>      >
>      > 2.      We have 15 units of non-working XO Laptop batteries, 9
>     units from
>      > the 1st deployment and 6 units from the 2nd deployment .
>      >
>      > 3.      We found some problems on the Internal Storages of XO Laptops
>      > specifically the Micro SD Storages, 2 units from the 1st
>     deployment and 8
>      > units from the 2nd deployment.
>      > _______________________________________________
>      > OLPC-SF mailing list
>      > OLPC-SF at lists.laptop.org <mailto:OLPC-SF at lists.laptop.org>
>      > http://lists.laptop.org/listinfo/olpc-sf
>      >
>      >
>
>     Jamaica has seen more than its fair share of white AC charger failures
>     on the 1.5 . We now have bulk chargers at the school made out of PC
>     power supply units andempty PC cases (Craig Perue cc'd).
>
>     cheers,
>     Sameer
>     --
>     Sameer Verma, Ph.D.
>     Professor, Information Systems
>     San Francisco State University
>     http://verma.sfsu.edu/
>     http://olpcsf.org/
>     _______________________________________________
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>
>
>
>
>
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>
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-- 
Christoph Derndorfer

editor, OLPC News [www.olpcnews.com]
volunteer, OLPC (Austria) [www.olpc.at]

e-mail: christoph at derndorfer.eu