{"id":27,"date":"2010-04-07T16:30:00","date_gmt":"2010-04-07T16:30:00","guid":{"rendered":"http:\/\/stampswops.com\/st1100blog\/?p=27"},"modified":"2010-04-07T16:30:00","modified_gmt":"2010-04-07T16:30:00","slug":"today-i-have-mainly-been","status":"publish","type":"post","link":"https:\/\/la-darnoire.com\/st1100blog\/?p=27","title":{"rendered":"Today I have mainly been….."},"content":{"rendered":"

Bodging.<\/span>

<\/span>
Now I should explain; I bought an old Sharp laptop off Ebay for next-to-nothing. Very good condition and the build quality is excellent; the only problems were that it did not have a hard disk (I have an old one), the keyboard doesn’t work (I’m working on that) and the battery doesn’t hold a charge.<\/span>

<\/span>
So today I tackled the battery. <\/span>
<\/span>
<\/span>
<\/span>
<\/span>
<\/p>\n

In accordance with article 27 subsection (c) Paragraph ii, as described <\/span>here<\/span><\/a>, I dismantled the Sharp laptop battery.<\/span><\/div>\n
<\/div>\n
9 NiMH cells. Size 4\/3A. 4500mAh, 1.2V.<\/span><\/div>\n

<\/span><\/div>\n
So I searched. And searched. And finally found a site in the States that sells these cells by the sea shore. But at just over \u00a37 per cell, you’ve got to be ‘avin’ a larf. Innit?<\/span><\/div>\n

<\/span><\/div>\n
Eureka! I then had another idea.<\/span><\/div>\n

<\/span><\/div>\n
I’ve still got a long-life battery from a long-deceased Sony Vaio which has been up for sale for about 2 years on Ebid, and on Ebay whenever there’s a free listing day. Nada. So, out with the hacksaw.<\/span><\/div>\n

<\/span><\/div>\n
Screwdriver? Check.<\/span><\/div>\n
Blunt chisel? Check.<\/span><\/div>\n
Hammer? Check.<\/span><\/div>\n
Spanners? Che… what?<\/span><\/div>\n

<\/span><\/div>\n
So some hammering and drilling later, the Vaio battery lay exposed before me. Rolling up my trousers, I examined the cells. Ah-ha! Lithium-ion! Excellent – these don’t have a memory effect. And they’re the same physical size as the old batteries too! (Well, 1mm shorter but that’s dandy).<\/span><\/div>\n

<\/span><\/div>\n
Oh.<\/span><\/div>\n

<\/span><\/div>\n
3.7V.<\/span><\/div>\n

<\/span><\/div>\n
Damn.<\/span><\/div>\n

<\/span><\/div>\n
Hang on a minute.<\/span><\/div>\n

<\/span><\/div>\n
9 cells times 1.2V = 10.8 V. Correct, that’s what it says on the bottom of the Sharp battery.<\/span><\/div>\n

<\/span><\/div>\n
So…..<\/span><\/div>\n

<\/span><\/div>\n
3 cells times 3.7V = 11.1V. Ah-ha! That’s within range! But each cell is….. 3 down carry 1, add 27, take away the number you first thought of…. 1800mAh. And I can fit 9 of ’em in there. That means 3 x 1800 = 5400mAh! This laptop battery should last for days between charges! Muwahahahaha.<\/span><\/div>\n

<\/span><\/div>\n
So it’s out with the soldering iron.<\/span><\/div>\n

<\/span><\/div>\n
The battery is now back together (held together with sticky tape for the time being) and back in the laptop (which has been placed carefully in the middle of a large sheet of cardboard just in case it blows up).<\/span><\/div>\n
<\/div>\n
Plug in adaptor. Check.<\/span><\/div>\n
Plug adaptor into laptop. Check.<\/span><\/div>\n

<\/span><\/div>\n
S…w….i….t…c…h…….<\/span><\/wbr>………..o…n…………..<\/span><\/wbr>.<\/span><\/div>\n

<\/span><\/div>\n

<\/span>Eeeh by gum! A charge light! So far so good; now we’ll see how long a charge lasts. I’ll do a full charge\/discharge cycle a few times first.<\/span><\/span>

<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Bodging.Now I should explain; I bought an old Sharp laptop off Ebay for next-to-nothing. Very good condition and the build quality is excellent; the only problems were that it did not have a hard disk (I have an old one), the keyboard doesn’t work (I’m working on that) and the battery doesn’t hold a charge.So […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-27","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/la-darnoire.com\/st1100blog\/index.php?rest_route=\/wp\/v2\/posts\/27","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/la-darnoire.com\/st1100blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/la-darnoire.com\/st1100blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/la-darnoire.com\/st1100blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/la-darnoire.com\/st1100blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=27"}],"version-history":[{"count":0,"href":"https:\/\/la-darnoire.com\/st1100blog\/index.php?rest_route=\/wp\/v2\/posts\/27\/revisions"}],"wp:attachment":[{"href":"https:\/\/la-darnoire.com\/st1100blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=27"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/la-darnoire.com\/st1100blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=27"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/la-darnoire.com\/st1100blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=27"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}