There’s nothing more frustrating than a battery that won’t hold a charge. If you have a laptop, phone, or other devices that rely on lithium-ion batteries, then you know the importance of keeping that battery healthy. So what do you do if your battery seems to be sleeping? This blog post will discuss how to wake a sleeping lithium-ion battery and get it back to its former glory!
So, how to wake a sleeping lithium-ion battery? When using a battery, it is important to use the right charger. Connect the battery to the charger for a few minutes and watch it to see if it is healing properly. If not, you should use a charger with the ”boost” or ”wake up” feature. Keep in mind that you should not boost a lithium-ion battery with a voltage of 1.5 or below.
There are several ways to wake up a sleeping lithium-ion battery. It is possible to overcharge it, but you should avoid doing this as much as possible. The life cycle of a lithium-ion battery varies depending on how it’s used.
Let’s have a look at the methods…
Why Do Lithium-Ion Batteries “Fall A Sleep”?
Ever wonder why your phone or laptop unexpectedly shuts off when you’re in the middle of using it? This is because lithium-ion batteries have a limited life span due to being recharged.
Lithium-ion batteries have a protective circuit that helps prevent the battery from becoming depleted and unable to be charged in the future.
One of the biggest problems with NiCad batteries happened when they were put away for a long time and were then charged. This would make the battery unusable, and it couldn’t be fixed without taking it apart and rebuilding it.
Lithium-ion batteries usually start to sleep when they go below a voltage between 2.2 V and 2.9 V.
Lithium-ion batteries will eventually sleep even if you are using them. The more often a battery is charged, the faster it sleeps.
Charging a lithium-ion battery too low causes irreversible damage to its cells which can’t be fixed without replacing them entirely. This means that once your laptop has slept for too long and won’t wake up, it’s pretty much dead.
Lithium ions are stored inside the battery’s anode, and when they are being used, the lithium ions move from this storage area into a conductive material called the cathode. This causes the anode to shrink, making it harder for lithium ions to move back into their storage area when they are no longer being used.
As a result, the lithium ions will remain in their conductive material until another charge is applied to move them back into their storage area.
This is a process called cathode cycling, and it causes the battery to lose capacity over time because lithium ions are not being returned to their storage area.
Lithium-ion batteries also fall asleep in a low-temperature environment, such as your car during winter or sitting on your desk in an office.
The reason is that the lithium ions cannot move as quickly in cold temperatures, which causes the battery to lose capacity and eventually die.
How Do You Wake Up A Lithium-Ion Battery From Sleep Mode?
When a lithium-ion battery is not charged enough, it goes into sleep mode. Most people think this means the battery is no good and throw it away. But actually, you can still use the battery if you charge it more!
Some chargers and analyzers (like Vencon and Cadex) have a boost and wake-up feature to reactivate sleep mode batteries. The boost charges the battery by applying a small voltage. This makes it possible for a charger to charge the battery more easily, especially when the correct cell voltage is applied.
We will need to look at how to wake up a sleeping battery before deciding if it is not working.
Let’s look at Step By Step Guide to Wake Up Sleeping Lithium-Ion Batteries.
Step 1: Check the voltage.
First, you need to check if your battery still has some power. Turn off the power to the device and remove the battery. Use a voltmeter to see if it still has any voltage. For example, if your battery is at 4.0 volts and the voltmeter shows 2.0 volts, it might be in sleep mode.
Some batteries go to sleep mode at different voltage levels, so it is important to be familiar with your battery’s capacity. This will help you wake the battery up when it goes to sleep.
Step 2: Make sure your battery is connected to a charger.
When you charge your battery, make sure to use a charger that has the “boost” or “wake up” feature. Connect the battery to the charger for a few minutes and watch for any signs of damage or healing.
You should not charge the battery too much. If the voltage is 1.5 and below, it can cause a short and lead to an explosion.
Step 3: Check the voltage again.
To check if the boost is working, use a voltmeter to measure the voltage. If it is higher than before, then the boost is working. If it is the same as before, then the process was unsuccessful. You may need to buy a new battery. It is important to check your charger’s manual to know when the process will be complete. Keep in mind that battery revival may not always be successful.
Step 4: Discharge and recharge the battery.
If the boost worked, you could now connect your battery to its charger. It would help if you charged it fully before you used it again.
Step 5: Put the battery in the freezer.
In a bag that is not wet, put the battery in the freezer for a whole day. Then let it in at the normal temperature. It will be fixed most of the time within 5-10 hours.
Step 6: Again, Charge the battery.
Connect the battery to a charging system and make sure it is fully charged.
It can be tiresome to follow these processes. They require a lot of patience and safety precautions. As an individual, it is your choice whether or not to do this. You can even take the battery to a professional to have it serviced properly.
How Do I Know If My Lithium-Ion Battery Is Bad?
There are several ways to tell if your lithium-ion battery is bad. One way is to check the voltage. A healthy battery will have a voltage of 3.7 volts or more. If the voltage is lower than 3.7 volts, the battery may be damaged and need to be replaced.
Another way to tell if the battery is bad is to check the capacity. If the capacity is reduced, it may signify that the battery needs to be replaced.
The self-discharge rate can also signify that the battery is damaged and needs to be replaced. If the self-discharge rate is high, it means that the battery isn’t holding its charge for very long.
Finally, another way to tell if the battery needs to be replaced is to check for signs of overheating or bloating. If the battery is overheating or bloated, it’s a sign that something is wrong, and the battery should be replaced.
Is It Possible To Overcharge A Lithium-Ion Battery?
Yes, overcharging a lithium-ion battery may result in permanent damage to your cell. Do not overcharge one or more cells in the high voltage stack used for automobiles!
Overcharging a lithium-ion battery can lead to irreversible damage to the cells. The safety of your battery can be bad, and you might not be able to use it anymore.
You should never overcharge one or more cells in the high voltage stack used for automobiles! If your system has a fault where it could get into a high state of charge, you should remove the battery and take it to a professional.
They can analyze and fix your battery if needed at a cost. If you do not have this fault, there is no worry for you and enjoy your device! Thank you for reading!
How Do You Know If The Lithium Battery Has Reached The End Of Its Life?
If the battery continues to lose its charge after being recharged at least once, it has reached the end of its life.
The battery might swell a bit if it is at the end of its life. To check, remove the battery and put a voltmeter on it. Write down the voltage you get. It won’t take charge anymore if it’s dead or at the end of its life.
If your device has been using a lithium-ion battery, then it might swell a bit if it is at the end of its life. To check, remove the battery and put a voltmeter on it. Write down the voltage you get.
If your device has been using lithium-ion batteries, they can reach the end of their useful lives after just two years or less from when they were new.
If the battery continues to lose its charge after being recharged at least once, it has reached the end of its life. The battery might swell a bit if it is at the end of its life. To check, remove the battery and put a voltmeter on it. Write down what voltage you get back from that test. It won’t take charge anymore if it’s dead or at the end of its life.
Final word
In conclusion, this article has shown you a few ways to maintain your lithium-ion battery better. Follow the guidelines outlined in this article, and you will be able to maximize the life span of your battery and avoid costly replacement expenses.
You now know how to wake up a sleeping lithium-ion battery, so give these tips a try and enjoy the increased longevity!