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Old Nov 04, 2009, 03:50 AM   #1
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Brain FART !!
IDK if it's I got too much going thru my head, or lack of sleep or both
Anyway I got a dell laptop battery I tore apart since the laptop took a crapper, the pack originally was 14.8v and 65wh= 6500mah?
so I spilt it from it's orginal form of 12cells,2s6p? and came out 2 packs at 2s3p, right?so whats the mah of each pack 6450? the cells are not labeled.
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Old Nov 04, 2009, 03:57 AM   #2
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Quote:
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IDK if it's I got too much going thru my head, or lack of sleep or both
Anyway I got a dell laptop battery I tore apart since the laptop took a crapper, the pack originally was 14.8v and 65wh= 6500mah?
so I spilt it from it's orginal form of 12cells,2s6p? and came out 2 packs at 2s3p, right?so whats the mah of each pack 6450? the cells are not labeled.
65wh/14.8v=4.38ah /2=2.2ah =2200mah

Probably somewhat less depending on how old pack was.
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Old Nov 04, 2009, 04:45 AM   #3
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so I spilt it from it's orginal form of 12cells,2s6p? and came out 2 packs at 2s3p, right?
Wrong, 6S2P -> 2x 3S2P. However, if 14.8V I'm pretty sure you have 4S2P (8 cells) or 4S3P (12 cells)
(try get some sleep ).

Fred
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Old Nov 04, 2009, 07:48 AM   #4
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Looks like the 8 cell pack (4s2p)
http://www.laptoppartsshop.com/dell-...wh-p26523.html

So you probably have 2, 4s1p packs now.
Last edited by hoppy; Nov 04, 2009 at 12:19 PM. Reason: Kit pointed out a problem with my math. Bold type
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Old Nov 04, 2009, 09:02 AM   #5
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Looks like the 8 cell pack (4s3p)
.
So you probably have 2, 2s3p packs now
Ummm, doesn't 4 X 3 = 12? or is this the new math?

Maybe he has 2 packs of 2s2p, or 2 packs of 4s1p?
Last edited by kit; Nov 04, 2009 at 09:08 AM.
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Old Nov 04, 2009, 09:44 AM   #6
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LOL, isn't this thread about brain farts?
I use to work on Wall Street? Buy for 8, sell for 12?

You're 99.99% right, 2s2p or 4s1p.....
Probably 4s1p. They do use that config http://www.zimbio.com/Replacement+La...+battery+14+8V

Joat,
Is each pack still 14.8V?
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Old Nov 04, 2009, 09:58 AM   #7
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Uh.. Oh... Looks like Kit is the "new" Hoppy. He caught me yesterday.
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Old Nov 04, 2009, 10:16 AM   #8
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Maybe he has 2 packs of 2s2p, or 2 packs of 4s1p?
Or 2 pack 4S2P 18325 cells .
Cells are usually paired in these packs, so I bet it's 2x 2S2P.

Fred
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Old Nov 04, 2009, 11:11 AM   #9
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I spilt the 12 cell pack into 2,6 cell packs, both are 2s, with 3 cells in para, so basically I have 6,2 cell packs, last night I still did not get much sleep
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Old Nov 04, 2009, 11:26 AM   #10
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Don't know about brain farts, but plowing through this thread has made my brain tired.

Bill
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Old Nov 04, 2009, 11:44 AM   #11
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I spilt the 12 cell pack into 2,6 cell packs, both are 2s, with 3 cells in para, so basically I have 6,2 cell packs, last night I still did not get much sleep
So you have 6, 2s1p packs?
Made into a 14.8V pack = 4s1p 2200mah
Parallel 3 of them = 4s3p 6600mah

The 12 cell packs seem to be 96WH while the 8 cell are 65WH. That's confusing.
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Old Nov 04, 2009, 12:54 PM   #12
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So you have 6, 2s1p packs?
Made into a 14.8V pack = 4s1p 2200mah
Parallel 3 of them = 4s3p 6600mah

The 12 cell packs seem to be 96WH while the 8 cell are 65WH. That's confusing.
Yes I think, I basically have 6, 2s pack, the batteries came from and older dell 5150 inspiron, I gotta try to find the housing for the specs
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Old Nov 05, 2009, 12:47 AM   #13
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Ok got the specs after scrounging around the trash , 14.8v 6450 mah 96 wh, so if I spilt this into 2, 2s packs with 6 cells total in a pack what do I ended up with mah wise?
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Old Nov 05, 2009, 03:21 AM   #14
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Ok got the specs after scrounging around the trash , 14.8v 6450 mah 96 wh, so if I spilt this into 2, 2s packs with 6 cells total in a pack what do I ended up with mah wise?
You end up with what's written on the label; 6450 mAh.

Fred
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Old Nov 05, 2009, 08:44 AM   #15
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Each 2s3p pack will be 7.4V - 6450mah
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