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Steppenpig

Sudden Battery Failure

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Laptop battery mysteriously stopped working while travelling. Is there anything I need to consider before purchasing a new one, i.e., could it be the computer at fault.

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Laptop battery mysteriously stopped working while travelling. Is there anything I need to consider before purchasing a new one, i.e., could it be the computer at fault.

Just replaced the battery on this one yesterday. Didn't last very long. Didn't hold anything. I think I didn't let it discharge often enough.

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Didn't last very long.

Generally I've been quite happy. They usually last about 18 months (12 months at 80%~90% or so, then gradually decling for the last 6 or so)

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Depends on a number of things - did it just stop working or was the charge cycle getting less and less over months? Depends on the type of battery

You could try this:

http://www.wikihow.com/Revive-a-Dead-Laptop-Battery

Or this;

If you have to manually recalibrate a battery, the procedure is pretty straight-forward:

Step 1: Charge your battery to 100% or to whatever max percentage it can reach and leave it there for about 2 hours to cool down.

Step 2: Now disconnect the power and let the battery drain. There seems to be two views about how to do this. You can either let the battery run down all the way until the laptop dies or you can set it so that it goes to sleep or hibernates around 3 to 5%. Either way, you want to make sure the display stays on until it either dies or goes to sleep.

Step 3: Let the computer remain turned off for anywhere between 3 to 5 hours.

Step 4: Turn it back on and let it charge all the way to 100%.

That’s pretty much it. Now the computer should be giving you a more accurate reading of the actual capacity of the battery.

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did it just stop working or was the charge cycle getting less and less

It was working when it went in the suitcase, but now it just shows charge at zero and never increases despite being plugged in. I can use it plugged in. edit: I'm on normal voltage.

I will try the freezer

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It was working when it went in the suitcase, but now it just shows charge at zero and never increases despite being plugged in. I can use it plugged in. edit: I'm on normal voltage.

I will try the freezer

Well, two possible things:

1. Did the suitcase go in the hold or in the cabin? When it was x-rayed it is possible that the x-ray machine screwed up the battery. If it went in the hold it is possible that either the cold or the air pressure screwed the battery. I have had batterys go completely dead due to extreme cold and then they have had to be re-calibrated.

2. If it went in the hold did someone at the airport swipe your battery and replace it with a dead one?

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If it's a lipo check the voltage, it it's fallen below 3v per cell then its probably toast. Sometimes they can be revived if you use a nicd/nimh charger on them to bring them up to around 3v per cell, that method can cause fire and is probably not that practical to do on a laptop battery.

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If it's a lipo check the voltage, it it's fallen below 3v per cell then its probably toast. Sometimes they can be revived if you use a nicd/nimh charger on them to bring them up to around 3v per cell, that method can cause fire and is probably not that practical to do on a laptop battery.

I went out for a cycle ride last winter on a very cold day with my mobile phone in the breast pocket of my cycling jacket - by the time I got home the battery was dead. The wind chill had killed the battery.

I warmed it up by placing it in a warm place - on top of my electric blanket - for an hour or so, kept and eye on it that it did not heat excessively, and I managed to bring the battery back to life.

Not something I would recommend - heating batteries, as they can catch fire or explode. It was a warming affect and not heating though.

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Well, two possible things:

1. Did the suitcase go in the hold or in the cabin? When it was x-rayed it is possible that the x-ray machine screwed up the battery. If it went in the hold it is possible that either the cold or the air pressure screwed the battery. I have had batterys go completely dead due to extreme cold and then they have had to be re-calibrated.

2. If it went in the hold did someone at the airport swipe your battery and replace it with a dead one?

Pass the tinfoil! :blink:

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Pass the tinfoil! :blink:

Years ago I was working for the world's biggest networking company. We shipped some hardware out to Moscow air freight with specialist security seals on all the kit. When the kit was examined in Moscow all the security seals were still in place and looked completely untampered.

Turned the hardware on and nothing happened. The CPUs had all been swiped from inside the boxes. Think some mobos went as well.

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Years ago I was working for the world's biggest networking company. We shipped some hardware out to Moscow air freight with specialist security seals on all the kit. When the kit was examined in Moscow all the security seals were still in place and looked completely untampered.

Turned the hardware on and nothing happened. The CPUs had all been swiped from inside the boxes. Think some mobos went as well.

I reckon aliens from another dimension took them :wacko:

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The Welsh!? :o

Going well off topic, I have often wondered what would happen if the NCC-1701 USS Enterprise had a Welsh bridge officer. Every bogging sign would have to be in Welsh aswell, whereas the Vulcans and Klingons make do with English, which is obviously the natural language of space, apart from those German Daleks someone showed me earlier. :(

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Going well off topic, I have often wondered what would happen if the NCC-1701 USS Enterprise had a Welsh bridge officer. Every bogging sign would have to be in Welsh aswell, whereas the Vulcans and Klingons make do with English, which is obviously the natural language of space, apart from those German Daleks someone showed me earlier. :(

By the 24th Century there will be one Welsh speaker left in the Universe living in Bangor and, receiving 1 billion trillion pounds per year from the tax-payer in order to promote the Welsh language, will be utterly convinced that every other organism and being in the Universe only speaks Welsh.

Edit:

He will also be whinging that he does not get enough money for the Welsh language.

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By the 24th Century there will be one Welsh speaker left in the Universe living in Bangor and, receiving 1 billion trillion pounds per year from the tax-payer in order to promote the Welsh language, will be utterly convinced that every other organism and being in the Universe only speaks Welsh.

Edit:

He will also be whinging that he does not get enough money for the Welsh language.

One of my good mates is Welsh, and lives in Wales, and speaks Welsh. His big gripe is the "bogus Welsh industry". He doesn't feel disabled or opressed. And this is nothing to do with computer batteries, and probably a subject for another thread just to annoy the Welsh. :blink:

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I had two old laptops with dead batteries, I wanted to sort, before giving them away to friend's children.

I assumed new batteries would be hard to come by so dismantled the casing and soldered in new individual cells. One worked the other didn't, assume something bad in the protection circuitry. Looked on ebay and both batteries were available £6 each free delivery - much less than the cost of the cells I had soldered in.

They definitely don't like being left in situ plugged in. I've never found them last that long yet my original ipad I used heavily daily for years, sticking on charge every night, and only have just had to replace the battery after 5 years.

TBH batteries seems to be one of those areas where there's endless theory on prolonging battery life, of the charge to half capacity on full moon nights only but, I think, in reality there is a lot less rhyme or reason.

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Replacement batteries can be dead cheap. This one here was a whole £12.

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By the 24th Century there will be one Welsh speaker left in the Universe living in Bangor and, receiving 1 billion trillion pounds per year from the tax-payer in order to promote the Welsh language, will be utterly convinced that every other organism and being in the Universe only speaks Welsh.

Edit:

He will also be whinging that he does not get enough money for the Welsh language.

I was speaking to someone last weekend who works in the public sector in Cardiff. They were telling me how they (presumably the council, not indivisually) can be fined £5000 if they don't answer the phone in Welsh before English. :blink:

I asked what do you do if the person on the other end replies in Welsh?

The answer was you have to tell them you'll get someone who speaks Welsh without saying anything negative.

Crazy making English speakers answer the phone in Welsh.

Oh, this thread is about BATTERIES. Sorry...

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If it's a crApple it might be the SMC malfunctioning and needs resetting - SMC issues include sudden shutdowns, sluggish performance and battery indicator showing no power. Pretty common problem with CrApple laptops and iMcraps

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Laptop battery mysteriously stopped working while travelling. Is there anything I need to consider before purchasing a new one, i.e., could it be the computer at fault.

Sounds like an unpleasant discharge. See a doctor.

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