How to repair a battery that can’t be chargering anymore?

Sometimes you CAN "rejuvinate" a rechargeable dell xps m1530 battery that doesn’t want to take a charge anymore. You first need to have a basic understanding of WHY the battery is not taking the charge in the first place.

As a battery is used/charged/recharged, it develops little "hairs" of chemical that create an electrical link between the positive and the negative parts inside. This is, in effect, a short circuit inside the battery. If you are trying to recharge the battery, it appears to be charging, but once you take the charger off, there’s still no juice available. This is because of this "short" inside the battery.

I had four rechargeable laptop batteries for an old laptop, and this procedure worked just fine on them. Just note that this does NOT work every time. In my opinion, for every 10 batteries you ‘rejuvinate’, you may end up tossing 3 of them in the garbage! But then, what have you got to lose?

Basically, you will be "burning" out those little "chemical hairs" with a reverse charge.

You will need access to an automotive battery, and a pair of booster cables. You will need to determine the polarity of the dead vgp-bps2c battery …. Which is the positive tab, and which is the negative one on the battery?

Please note that I am NOT RESPONSIBLE for injury or damage to anything! You do this at your own risk. Read the instructions below BEFORE you do any of this!

Do this OUTSIDE, and wear safety glasses and gloves! You can never be too careful!

Put the booster cables onto the automotive battery. The red goes on the Positive (+), and the black on the
Negative (-). Make sure the other ends of the booster cables don’t touch one another. Very similar to boosting someone’s car that won’t start, except we are going to do something different!

Now take your dead hp dv2000 battery, and lay it so you can see the Positive and Negative tabs on it. Best to leave it on the ground, or a flat spot somewhere, rather than hold it in your hands.

What we do next is to apply a very FAST, REVERSE CHARGE from the automotive battery to the dead computer vgp-bps8 battery. The thing to note here is that it is a very quick, fast reverse charge. DO NOT CLAMP the booster cables to the dead battery!

Take the black, Negative (-) booster cable lead, and hold it onto the POSITIVE (+) tab of the dead battery.

Yes, that’s right. It’s backwards. This is half of the job.

Now, take the Positive (+) booster cable lead, and TAP it ONCE on the NEGATIVE (-) tab of the dead laptop battery, and remove it immediately! DO NOT HOLD IT IN PLACE!!!! Your connection here should not be a connection, but just about as long as it takes for you to blink your eye quickly. A QUICK TAP! ….. ONLY DO THIS ONCE!

You may be tempted to do this again, because it might look like nothing happened! DON’T! …. What you just did is apply a very big amount of reverse current to the old dead cell, even though you didn’t see anything. (at most, you may see a small spark). Hopefully, this was JUST enough to burn the ‘chemical hairs’ off, but not enough to damage the cells in the dell inspiron 1520 battery. That’s why it is important not to hold the lead on for more than a 1/10 of a second, and not to try doing it again.

Remove all leads, put your automotive cell and cables away. Try charging your ‘dead’ sony vgp-bps8 battery now. If the above procedure did indeed ‘fix’ your sony vgp-bps9 battery, it will behave JUST LIKE A NEW ONE!

If not, you can repeat the above procedure a couple of times, and try recharging again.

Works for me!

Just be careful. If you are not technically inclined, have someone who IS give you a hand. Just have them read this before THEY do anything either!

I must say this again – you do the above at your own risk, although I never had any problems doing this myself, I can’t be responsible for anyone else!

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