Comments on: Great Laptop battery hack http://tech.nocr.at/hacking-security/great-laptop-battery-hack/ gadget.hacking.gaming.geek.tech Mon, 15 Mar 2010 11:12:34 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: ratto http://tech.nocr.at/hacking-security/great-laptop-battery-hack/comment-page-1/#comment-9883 ratto Wed, 14 Oct 2009 12:24:42 +0000 #comment-9883 Totally sweet - but like john says modern batteries from laptop makers like sony are more bespoke - I wouldn't be surprised if the cheaper laptop's have simple batteries' like that though <div class="comment-remix-meta"><a href="#" class="replyto" onclick="replyto('9883','ratto'); return false;">Reply</a> - <a href="#" class="quote" onclick="quote('9883','ratto','Totally sweet - but like john says modern batteries from laptop makers like sony are more bespoke - I wouldn't be surprised if the cheaper laptop's have simple batteries' like that though \n \n '); return false;">Quote</a></div> Totally sweet – but like john says modern batteries from laptop makers like sony are more bespoke – I wouldn't be surprised if the cheaper laptop's have simple batteries' like that though

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]]> By: John http://tech.nocr.at/hacking-security/great-laptop-battery-hack/comment-page-1/#comment-9801 John Mon, 05 Oct 2009 01:45:45 +0000 #comment-9801 I think this was probably something that would work with laptops that were from a few years ago. I think your right, with todays modern batteries it would probably be dangerous. <div class="comment-remix-meta"><a href="#" class="replyto" onclick="replyto('9801','John'); return false;">Reply</a> - <a href="#" class="quote" onclick="quote('9801','John','I think this was probably something that would work with laptops that were from a few years ago. I think your right, with todays modern batteries it would probably be dangerous. '); return false;">Quote</a></div> I think this was probably something that would work with laptops that were from a few years ago. I think your right, with todays modern batteries it would probably be dangerous.
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]]> By: Boyd http://tech.nocr.at/hacking-security/great-laptop-battery-hack/comment-page-1/#comment-9792 Boyd Sat, 03 Oct 2009 09:58:05 +0000 #comment-9792 While I admire your ingenuity, I do have a few caveats: Some of you may remember a spate of flaming laptops, caused by a short within aging battery packs. Newer battery packs should have current limiting chips in series (or built in) with the cells to prevent this happening. Obviously, you need the same type of cells (NIMH, NiCad, Lithium/Thionyl Chloride, etc.), but you don't want to pick up some old cells (that were made for, but not built into, the battery packs that caught fire) that might catch fire. Goggles are essential. A face shield as well , seems like a good idea. A momentary slip-up could leave you with boiling-hot corrosive chemicals on your face - or even the odd little bit of metal stuck in it. If you do have a problem, wash it off with lots of water. Newer cells can store more energy in the same volume by: a/ packing things closer together, b/ using improved materials, c/ or both. In the past, sometimes design parameters have been shaved a little too close, or materials have failed to meet expectations. (Remember the industry-wide problem with electrolytic capacitors caused by an unexpected problem with electrolyte from an alternate supplier? The alternate electrolyte met all known specifications at the time - but the capacitors made with it had a tendency to blow up after an all-too-short life.) Big companies have the advantage that they can build 1,000 battery packs and test them to destruction, to prove that a design is "safe". Even then, there is still a small chance of some nasty surprise - see above examples. That said, and recognizing the risks involved, congratulations on a job well done!<div class="comment-remix-meta"><a href="#" class="replyto" onclick="replyto('9792','Boyd'); return false;">Reply</a> - <a href="#" class="quote" onclick="quote('9792','Boyd','While I admire your ingenuity, I do have a few caveats:\r\n\r\nSome of you may remember a spate of flaming laptops, caused by a short within aging battery packs.\r\nNewer battery packs should have current limiting chips in series (or built in) with the cells to prevent this happening. Obviously, you need the same type of cells (NIMH, NiCad, Lithium\/Thionyl Chloride, etc.), but you don\'t want to pick up some old cells (that were made for, but not built into, the battery packs that caught fire) that might catch fire. Goggles are essential. A face shield as well , seems like a good idea. A momentary slip-up could leave you with boiling-hot corrosive chemicals on your face - or even the odd little bit of metal stuck in it. If you do have a problem, wash it off with lots of water. \r\n\r\nNewer cells can store more energy in the same volume by: a\/ packing things closer together,\r\nb\/ using improved materials, c\/ or both. In the past, sometimes design parameters have been shaved a little too close, or materials have failed to meet expectations. (Remember the industry-wide problem with electrolytic capacitors caused by an unexpected problem with electrolyte from an alternate supplier? The alternate electrolyte met all known specifications at the time - but the capacitors made with it had a tendency to blow up after an all-too-short life.)\r\n \r\nBig companies have the advantage that they can build 1,000 battery packs and test them to destruction, to prove that a design is \"safe\". Even then, there is still a small chance of some nasty\r\nsurprise - see above examples.\r\n\r\nThat said, and recognizing the risks involved, congratulations on a job well done!'); return false;">Quote</a></div> While I admire your ingenuity, I do have a few caveats:

Some of you may remember a spate of flaming laptops, caused by a short within aging battery packs.
Newer battery packs should have current limiting chips in series (or built in) with the cells to prevent this happening. Obviously, you need the same type of cells (NIMH, NiCad, Lithium/Thionyl Chloride, etc.), but you don’t want to pick up some old cells (that were made for, but not built into, the battery packs that caught fire) that might catch fire. Goggles are essential. A face shield as well , seems like a good idea. A momentary slip-up could leave you with boiling-hot corrosive chemicals on your face – or even the odd little bit of metal stuck in it. If you do have a problem, wash it off with lots of water.

Newer cells can store more energy in the same volume by: a/ packing things closer together,
b/ using improved materials, c/ or both. In the past, sometimes design parameters have been shaved a little too close, or materials have failed to meet expectations. (Remember the industry-wide problem with electrolytic capacitors caused by an unexpected problem with electrolyte from an alternate supplier? The alternate electrolyte met all known specifications at the time – but the capacitors made with it had a tendency to blow up after an all-too-short life.)

Big companies have the advantage that they can build 1,000 battery packs and test them to destruction, to prove that a design is “safe”. Even then, there is still a small chance of some nasty
surprise – see above examples.

That said, and recognizing the risks involved, congratulations on a job well done!

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]]> By: BestajaxScripts http://tech.nocr.at/hacking-security/great-laptop-battery-hack/comment-page-1/#comment-9110 BestajaxScripts Mon, 27 Oct 2008 15:02:25 +0000 #comment-9110 this is great hack, really saved some money, thx<div class="comment-remix-meta"><a href="#" class="replyto" onclick="replyto('9110','BestajaxScripts'); return false;">Reply</a> - <a href="#" class="quote" onclick="quote('9110','BestajaxScripts','this is great hack, really saved some money,\r\n\r\nthx'); return false;">Quote</a></div> this is great hack, really saved some money,

thx

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]]> By: Changing traffic lights | tech.nocr.at http://tech.nocr.at/hacking-security/great-laptop-battery-hack/comment-page-1/#comment-8707 Changing traffic lights | tech.nocr.at Mon, 22 Sep 2008 05:21:24 +0000 #comment-8707 [...] KipPlay has brought us some interesting videos in the past that have been quite useful, like the Laptop Battery Hack and the Hack Your Remote Control video, but this one leaves me guessing so I put this to you to see [...]<div class="comment-remix-meta"><a href="#" class="replyto" onclick="replyto('8707','Changing traffic lights | tech.nocr.at'); return false;">Reply</a> - <a href="#" class="quote" onclick="quote('8707','Changing traffic lights | tech.nocr.at','[...] KipPlay has brought us some interesting videos in the past that have been quite useful, like the Laptop Battery Hack and the Hack Your Remote Control video, but this one leaves me guessing so I put this to you to see [...]'); return false;">Quote</a></div> [...] KipPlay has brought us some interesting videos in the past that have been quite useful, like the Laptop Battery Hack and the Hack Your Remote Control video, but this one leaves me guessing so I put this to you to see [...]
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]]> By: Valox http://tech.nocr.at/hacking-security/great-laptop-battery-hack/comment-page-1/#comment-8434 Valox Mon, 18 Aug 2008 13:20:49 +0000 #comment-8434 I can see it just fine.<div class="comment-remix-meta"><a href="#" class="replyto" onclick="replyto('8434','Valox'); return false;">Reply</a> - <a href="#" class="quote" onclick="quote('8434','Valox','I can see it just fine.'); return false;">Quote</a></div> I can see it just fine.
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]]> By: Sakib http://tech.nocr.at/hacking-security/great-laptop-battery-hack/comment-page-1/#comment-8433 Sakib Mon, 18 Aug 2008 09:02:51 +0000 #comment-8433 Wheres the video? I cant see it.<div class="comment-remix-meta"><a href="#" class="replyto" onclick="replyto('8433','Sakib'); return false;">Reply</a> - <a href="#" class="quote" onclick="quote('8433','Sakib','Wheres the video? I cant see it.'); return false;">Quote</a></div> Wheres the video? I cant see it.
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]]> By: That Guy http://tech.nocr.at/hacking-security/great-laptop-battery-hack/comment-page-1/#comment-6189 That Guy Mon, 25 Feb 2008 03:08:35 +0000 #comment-6189 kipkay is the master of how-to hack vids<div class="comment-remix-meta"><a href="#" class="replyto" onclick="replyto('6189','That Guy'); return false;">Reply</a> - <a href="#" class="quote" onclick="quote('6189','That Guy','kipkay is the master of how-to hack vids'); return false;">Quote</a></div> kipkay is the master of how-to hack vids
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