11-30-2011, 03:26 AM | #16 |
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11-30-2011, 03:31 AM | #17 | |
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11-30-2011, 04:02 AM | #18 | |
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Good one.
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So either you truly didn't know about other companies' battery issues (highly unlikely, unless you garner all your tech news from a single anti-Apple source) or you deliberately stated something you know to be false because it fits in with your general anti-Apple sentiments. My money is on the latter. Last edited by afa; 11-30-2011 at 04:04 AM. |
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11-30-2011, 07:07 AM | #19 |
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If I knew when a battery would fail I'd give them out as gifts to select people.
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11-30-2011, 07:35 AM | #20 |
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11-30-2011, 08:55 AM | #21 | |
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11-30-2011, 09:32 AM | #22 |
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No, that does indeed look like the battery.
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11-30-2011, 12:14 PM | #23 |
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Wasn't there a problem a few years ago with iPods and batteries overheating?
Li-ion/Lipo packs do not have anything in them to prevent this, unless someone adds such circuitry. That can be part of the pack or part of the device using them. I had run lipo (same battery in cell phones and readers, different from the li-ion in laptops) in RC modeling for a number of years. Failures of usch batteries come from several causes: Too high if discharge rate - short one of these and it gets nasty. Charging after being overly discharged - if the battery is discharged to too low of a voltage, when trying to charge it, it can have issues. Overcharging - these cells are limited to 4.2 volts per cell MAX voltage. Higher voltage applied to a cell will cause it to fail. Damage - if a cell is damaged it can fail or it might not fail until the next time being charged. Leaving the cell fully charged for a period of time will cause a loss of capacity, but not a violent failure. The cells contain an amount of flammable solvent, so whenthey over heat, and the envelope ruptures, the solvent can catch fire. The industry calls such failrues as "venting with flame." |
11-30-2011, 12:46 PM | #24 | |
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Last edited by DustyDisks; 11-30-2011 at 12:48 PM. |
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11-30-2011, 05:23 PM | #25 |
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This is an old problem that has been worked on for years and is better these days than when Lithium batteries first came out.
We even had fires on airliners from "backup" Lithium batteries. The Lithium batteries were used because they were so light relative to Ni-Cad or Lead batteries. These batteries could never be charged. There were problems sometimes with severe cabin depressurization because the batteries had a lot of pressure in them. The Lithium Ion batteries are made for recharging. They work very well because they are light and don't have a memory retention problem like Ni-Cad. There can still be a gas build up and there are vents usually. The charging circuitry is supposed to keep things under control but of course anything can fail. If there is electricity, you can have over heating and possibly a fire. |
12-01-2011, 03:42 AM | #26 | |
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12-01-2011, 04:58 AM | #27 |
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Even more non-trivial fact: Galaxy Nexus has problems with suden diminishing of volume because of a bug in Android Ice Cream Sandwich. There is no mention of that on this forum although this was on the BBC News last week. Yes the voulume becomes silent without any user interferance. If it was an Apple product, this would have been splashed everywhere, specailly on Mobile Read Forum and would have been dubbed 'silentgate'. One battery exploded somewhere over the outback and it makes it here. Apparantly Nexus is Samsung's flagship smartphone running Google's latest OS:
http://www.bbc.co.uk/news/technology-15870020 Last edited by Razi; 12-01-2011 at 05:02 AM. |
12-01-2011, 07:20 AM | #28 | ||
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12-01-2011, 07:30 AM | #29 |
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That's Apple: Low-tech for high-price!
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12-01-2011, 07:33 AM | #30 |
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