How to Get Your Laptop Battery to Charge Again
Laptop batteries have a notoriously short shelf life. Despite recent improvements to lithium-ion technology, most batteries tin merely withstand a certain number of charge cycles earlier their chapters starts to deteriorate rapidly.
Of course, there are a few steps you lot can accept to gainsay the result, but none of these will assist if your bombardment is already dead.
And so, is it possible to spring-start a dead laptop battery? Well, aye. We await at 3 dissimilar methods and requite each 1 a score out of 10 for ease and effectiveness.
Method 1: Freeze the Battery
If your computer has a nickel-metal hydride (NiMH) or nickel-cadmium (NiCd) bombardment, you could try freezing it. If you have a lithium battery (which covers all Macs and about new Windows computers), do not try this method.
Information technology might sound fanciful, but this method is scientifically proven to work. By freezing a battery, you're accomplishing two feats:
- Gelling the battery's electrolyte sufficiently so that the charging process can overcome crystallization.
- Slowing the movement of free electrons so more electrons tin can join the flow.
(Notation: If your bombardment is uncommonly erstwhile, all the electrons have probably leaked away, and this method will non piece of work.)
Merely how does this process work?
To begin, plow off your calculator, disconnect it from the wall socket, and remove the battery from your auto. Exist warned that if your bombardment is not removable, taking autonomously your figurer to go it out will void the warranty.
Side by side, identify the bombardment inside a cloth bag, and so put the cloth bag inside a sealable Ziploc bag. Do non skip the cloth handbag---information technology adds an essential layer of insulation. And make sure you use a Ziploc bag. A regular plastic grocery bag will let moisture to seep in, potentially destroying your battery for good.
Put the Ziploc bag in the freezer for x hours. Later on the 10 hours accept passed, let the bombardment naturally warm upwards to room temperature before putting it back into your computer.
Verdict: seven/10. The way of fixing a laptop battery is scientifically backed, but we've docked points because it doesn't piece of work with the newer lithium batteries. And despite some internet rumors, putting it in the freezer will non charge information technology or improve its performance. It'southward solely a way to spring-kickoff and revive a dead laptop battery. Check out our other commodity for ways to improve and extend a battery'due south lifespan.
Method two: Over Voltage
This is a method for jump-starting lithium batteries. Remember, lithium batteries will die if left unused for an extended period. You should try to turn any lithium-powered devices on at to the lowest degree in one case every two days to maintain the battery's health.
(Warning: This method works, simply it's risky. If y'all overcharge for too long, the battery could explode. Wear eye goggles and perform the process in a large, clutter-costless area.)
Before you begin, you'll demand three items: a crocodile prune, thin wire, and a laptop charger or power supply unit of measurement. The wiring in an Ethernet cable will suffice if you have an erstwhile one lying around that you're willing to cutting up.
First, you need to locate the positive and negative pinouts on your bombardment. In theory, these should have clear labels. If they don't, search Google for your bombardment model.
Next, cut two pieces of wire. Each of them should measure about 2.75 inches. One will play the role of the positive wire; the other is the negative. On the positive wire, remove almost 0.iv inches of the protective coating from each end. On the negative wire, remove about 0.4 inches at ane end and just under 0.viii inches at the other end.
When you're ready, insert one end of the positive wire into the bombardment'southward positive pinout, and insert the 0.4-inch finish of the negative wire into the negative pinout.
Slot the other stop of the positive wire within the charger's positive pin. Finally, attach the 0.8 inch end of the negative wire to the negative outer conductor using the crocodile clip.
Now you need to exit your bombardment for two hours. When disconnecting your setup, exercise extreme caution---this where in that location is a risk of explosion.
Reinsert the battery into the laptop to test whether the jump start was successful.
Verdict: six/10. Every bit equally reliable as the freezing method and it works with newer lithium batteries. However, we knocked a couple of points off for the danger cistron.
Method 3: Replace Battery Cells
This is the virtually adventurous of the three fixes. You can effort to supervene upon some (or all) of the cells in your old bombardment with performance cells from a working only unused battery. If you have the skill, it'southward a great way to repair a laptop bombardment.
Once again, in that location are a few critical warnings you demand to keep in listen:
- The replacement cells must have the same chemical makeup as the current cells (east.g., lithium-ion).
- Your new cells must have the same rated voltage as the old ones.
- The new cells must have the same or higher capacity every bit your old cells (measured in mAh).
- The new cells must be the same physical size as the old ones.
- You'll also demand a soldering tool.
To start, remove the battery from your laptop and pry it autonomously. You lot will probably need a flat-head screwdriver or putty knife.
Within the battery's casing, you'll see a series of individual cells. Typically, they await similar regular AA batteries. Each of the cells will be connected to a circuit board with wires. Brand sure you lot make a notation of which wires go where. Ideally, you lot should also employ a multimeter to ensure there's no potentially dangerous rest charge.
Separate the cells from their wires and each other using your soldering tool, then take them out of the case. Next, solder your new cells together and reattach the wires to the correct locations.
Finally, put the bombardment's casing back together and let it rest for 48 hours to ensure your soldering work has set.
Verdict: 4/10. Yep, the procedure will work, but information technology requires a knowledge of soldering, the chances of having all the necessary tools and batteries cells handy are slim, and it takes a long time.
Monitor Your Laptop Battery'due south Health
It'southward piece of cake to avoid landing yourself in a state of affairs where you need to jump-first the battery if y'all monitor information technology correctly.
We recommend using a battery monitoring tool. They tin can practice everything from recalibrating your power unit to displaying your discharge rates on charts and graphs. A battery monitoring tool is a vital utility for keeping your battery salubrious.
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