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#1
Posted to alt.electronics
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need data sheet for a battery
LGR18650U
there r 8 of these in my laptop's battery pack, I want the data sheet 4 them |
#2
Posted to alt.electronics
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need data sheet for a battery
On Mon, 09 Apr 2007 23:57:48 GMT, chris gareau wrote:
LGR18650U there r 8 of these in my laptop's battery pack, I want the data sheet 4 them --- 2 bad. -- JF |
#3
Posted to alt.electronics
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need data sheet for a battery
John Fields wrote: On Mon, 09 Apr 2007 23:57:48 GMT, chris gareau wrote: LGR18650U there r 8 of these in my laptop's battery pack, I want the data sheet 4 them --- 2 bad. vary helpful!!!!!!!!!!!!!!1 |
#4
Posted to alt.electronics
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need data sheet for a battery
"chris gareau" wrote in message news:HTTSh.50987$aG1.14404@pd7urf3no... John Fields wrote: On Mon, 09 Apr 2007 23:57:48 GMT, chris gareau wrote: LGR18650U there r 8 of these in my laptop's battery pack, I want the data sheet 4 them --- 2 bad. vary helpful!!!!!!!!!!!!!!1 Maybe if you didnt basically demand things people might be more inclined to help! If you learned to google *for yourself* you'd find the very FIRST result says: "LGR18650U has high capacity (2200mAh), highenergy density (470Wh/L) and long cycle life" and that it is a lithium ion cell. Id suggest that if you cant operate google sufficiently well to get that information that you may be lacking the skills with which to use the information. Or maybe you're just lazy? Who knows, either way I hope the info is helpful for you. |
#5
Posted to alt.electronics
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need data sheet for a battery
P.S. since the pack specifies 14.4v and 4400mah, and Lithium ion batts
normally come in 3.6v cells, id say it has a pair of 4-cell strings in parallel to acheive those ratings. HTH. |
#6
Posted to alt.electronics
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need data sheet for a battery
Coyoteboy wrote: P.S. since the pack specifies 14.4v and 4400mah, and Lithium ion batts normally come in 3.6v cells, id say it has a pair of 4-cell strings in parallel to acheive those ratings. HTH. I didn't mean to sound rude, was just trying not to wast time. I did find that stuff in google, just not information like a schematic for some support circuitry, I want to reverse engineer my battery, maybe make it use different battery technology, li-ion r good as long as u don't care about using them past 3 years. I thought a full data sheet would have a schematic for some kind of support circuit so I had some information to use to understand what I am looking at. if u know where I can find that information it would be great |
#7
Posted to alt.electronics
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need data sheet for a battery
On Wed, 11 Apr 2007 04:55:00 GMT, chris gareau wrote:
Coyoteboy wrote: P.S. since the pack specifies 14.4v and 4400mah, and Lithium ion batts normally come in 3.6v cells, id say it has a pair of 4-cell strings in parallel to acheive those ratings. HTH. I didn't mean to sound rude, was just trying not to wast time. I did find that stuff in google, just not information like a schematic for some support circuitry, I want to reverse engineer my battery, maybe make it use different battery technology, li-ion r good as long as u don't care about using them past 3 years. I thought a full data sheet would have a schematic for some kind of support circuit so I had some information to use to understand what I am looking at. if u know where I can find that information it would be great --- Toshiba. -- JF |
#8
Posted to alt.electronics
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need data sheet for a battery
On Wed, 11 Apr 2007 04:55:00 GMT, chris gareau wrote:
Coyoteboy wrote: P.S. since the pack specifies 14.4v and 4400mah, and Lithium ion batts normally come in 3.6v cells, id say it has a pair of 4-cell strings in parallel to acheive those ratings. HTH. I didn't mean to sound rude, was just trying not to wast time. I did find that stuff in google, just not information like a schematic for some support circuitry, If you wanted support circuitry, then why didn't you ask for support circuitry? I want to reverse engineer my battery, maybe make it use different battery technology, li-ion r good as long as u don't care about using them past 3 years. vs. what for more than three years? I thought a full data sheet would have a schematic for some kind of support circuit so I had some information to use to understand what I am looking at. if u know where I can find that information it would be great |
#9
Posted to alt.electronics
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need data sheet for a battery
Draw out the circuit yourself since you have the top off. I suspect it will
only be: 2x ---[cell,cell,cell,cell]--- in parallel, maybe with a few take-offs at part way along for lower-voltage supply. I dont think this will be so simple. I have taken appart some of similar packs, but there is often quite lot of electronics inside. One of the packs I have taken appart was from a video camera and it definitely employed a microcontroller based circuity. I remamber that I wanted buy such cells alone few years ago, in order to build some power supply for a national mountain day radio event. I could not find any suppliers who were willing to sell me those cells unless I would deposit complete engineering drawings of the charging circuit for the resulting pack. Ballancer is what they call the circuit in general, it is needed otherwise there is a danger of overheating and explosion. |
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