How to Revive a Dead Laptop Battery
Bring a seemingly-dead laptop battery back to life, to a usable condition, although not quite like-new. It could be almost as good as a replacement laptop battery and a lot cheaper than a universal external laptop battery.
Using a freezer – the same place you put your frozen peas and TV dinners – you could restore a dead laptop battery.
Simply follow the instructions below and save yourself some money. It will only cost you the time it takes to complete the list below. So do yourself a favour and do it yourself.
- Place a dead laptop battery in a completely sealed plastic bag.
- Place the bag and battery in your freezer for between 11-14 hours.
- Remove the bag from your freezer and allow the battery return to room temperature after taking it out of the bag, this is very important.
- If your laptop batteries are still damp dry it using a cloth or towel.
- Place your once dead laptop batteries back into your laptop.
- Now completely charge your battery then leave it on to discharge it completely. Repeat this step at least 3-4 times.
- Your dead battery should be much more usable, if not totally restored.
You can also consider replacing the internal batteries at a fraction of the cost of the alternatives methods. So, do not condemn your laptop battery to the recycle bin just yet. Using this method could see you saving yourself between 30-90% of the cost of your replacement laptop battery.
This cheap alternative method is to substitute the batteries inside the battery pack with a brand new set.
You first need to remove the battery pack from your laptop. You will then need to open the battery pack carefully (a screwdriver should do the job). Inside you will be confronted with several batteries and a host of wires. A word of warning, if any battery is leaking proceed carefully. If you are not sure then do not continue.
Now you will need to make a note
of the type of laptop battery you have and exactly – I repeat exactly – how it is connected (wired) to each other. Just to be sure, you could test your old batteries with a millimeter or similar device to see just what state they are in. If you touch these leaking batteries then dispose of them appropriately and then make sure you wash your hands thoroughly and you’re back in business.
After confirming that they are in fact dead laptop batteries you will need to order some replacement batteries. To do this, ensure the replacements have a higher milliamp value than the old ones, just slightly. When you receive your replacement laptop batteries put the new batteries in the correct positions and replace the wiring so you can do the necessary soldering. Make sure to use the appropriate safety equipment and double check all connections are correct.
Once your laptop batteries are in place and everything confirmed, you should test them with your millimetre to ensure they are working as expected.
Reassemble the laptop battery pack and seal it properly. Re-install the laptop battery into your laptop and start enjoying your laptop’s new lease on life.
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I’ve tried all sorts of “restore your laptop battery” tricks and none ever work. Usually the battery is worse off than before.
Has anyone tried this one? Sounds like more snake oil to me. Sorry to be such a nay-sayer, but I’m skeptical on this one…
You only perform the battery-in-freezer thing for batteries that are 100% dead, else yes, it will be worse off than before. After the freeze you have to let it warm up then charge for a good long time and you’ll get some life out of it. Not too much but it’s better than a battery that holds no charge.Source: www.pcmech.com