If your battery is no longer holding a charge and drains quickly, you may be able to salvage it by performing a full recharge. We will show you how to recharge a dead lithium ion battery in this article.

How to recharge dead lithium ion battery

A specific technique must be followed and specific tools must be utilized to restore a Li-ion battery.

To begin, check the battery’s voltage with a multimeter. When voltage drops below a particular point, the batteries are most likely in sleeping mode. Then you are required to jump-start with a special Li-Ion charger with a booster. Such a case will be the first time the battery has been revived. The battery then goes through a series of complete charging and draining cycles. During battery reconditioning, there is substantial evidence that freezing batteries when they are empty and then fully charging them afterwards is helpful.

Most modern electronic equipment, such as smartphones, computers, cameras, personal technology gadgets, power tools, and so on, use Li-Ion batteries, also known as Lithium Ion batteries. They are highly popular since they are rechargeable, have a big capacity, minimal self-discharges, with a significant no. of charge cycle.

In only a few minutes, you can recover the dead lithium-ion batteries.

• Remove the end of an outdated phone charger that is no longer in use.
• Remove the cable covers from the two wires and separate them. Booster cables are what they’ll be used for. Never combine the positive and negative ends of a sentence. The positive end is the striped or solid white wire, while the negative end is the black wire.
• Remove the battery pack’s screws.
• Remove the battery from the casing.
• Remove the two side-by-side plastic pieces. When pushed in, they assist in extracting the battery from the drill.
• Take the battery pack out of the way.
• A multi-meter may be used to check the voltage level. An 18V lithium-ion battery, for example, would power an 18V impact wrench. To get the best accurate result, set the multimeter to 20 volts in this example.
• Connect the red probe to the red terminal (positive ends) and the black probe to the black terminal (negative ends) on the multimeter to verify the voltage levels.
• Connect the black wire to the negative terminal of the ac adapter/old mobile phone charger you used to make a booster and the white or striped wire to the positive terminal of the ac adapter/old mobile phone charger you used to make a booster. For approximately a minute, alternate on and off.
• With the aid of the multimeter, check the battery’s voltage. The voltage levels would have been boosted as a result of the boosting procedure.
• Place the battery pack into the battery box and secure it with the screws and plastic.
• Check to see if the battery is charging currently by connecting it to the charger.

If you possess a power tool that uses a lithium-ion battery, one of the most essential things to remember is to never totally drain the battery. The charger will not be able to recharge a fully depleted lithium-ion battery.

What you will require

1.Remove the battery from the device and disconnect the electricity to it. Using your voltmeter, get a reading of the voltage. When a li-ion battery is overcharged, this might go into a sleep state. When the battery is labeled at 4.2 v and just reads 1.2 v on the voltmeter, it could be in sleep state.

2. Few battery analyzers and chargers provide a “boost”, “recovery,” or “wake up” option to recover a sleeping battery. It can not be effective each time. Also do not try it with cells that have been under 1.5 volts for more than a week. However, it can occasionally revive a dead battery. Before you put your battery in, make sure it’s charged correctly.

3. After the battery has been set to wake up, take another reading. Then refer to the instruction manual that came with your charger to figure out when the procedure should be done. Remember that recovering a battery is not always effective, thus you may need to buy a new one if this does not work.

4. Charge the battery entirely in the charger (lithium-ion). Few chargers go from recuperation to charging mode automatically, allowing you to put the battery plugged in the entire time. Then, in a device that will place a large demand on the battery.

5. In an airtight bag, Freeze the batteries for 24 hours, making sure the bag contains no moisture. It causes the battery to leak. Return it to room temperature by allowing it to defrost for up to 8hrs after taking it from the freezer.

6. In the charger, fully charge the Li-ion battery. Its performance should improve over time, and it should be able to charge and maintain a charge for extended periods of time.

Cautions

The electrolyte of a Li-ion battery is flammable, and the cell itself is under pressure. When working with a battery, wear safety glasses at all times.

Advice

To extend the life of the Li-ion battery, keep it at room temperature. If you have a discharged Li-ion battery, charge it as soon as possible.Charge your Li-ion battery frequently (even if it isn’t completely exhausted) to extend its life.

Frequently asked questions

Is it possible to recharge a dead lithium battery?

If your li-ion battery is fully dead and is not being recharged, you can revive them by storing them in freezers.

How do you fix a non-charging li-ion battery?

If your battery is no longer holding a charge and drains quickly, you may be able to salvage it by performing a full recharge. You’ll need to completely drain the battery for this to work, so once it gets 0%, keep turning it back on until it doesn’t have enough juice to boot.

When does a li-ion battery go dead?

The voltage begins at 4.2V and quickly declines to around 3.7V throughout the majority of the battery’s life. When you reach 3.4V, the battery is dead, and when you reach 3.0V, the cutoff circuitry disconnects the battery (more on this later). You may also encounter 4.1V/3.6V batteries.

How can I tell if my li-ion battery is faulty?

The simplest technique is to use a multimeter or a voltmeter to check the voltage; if it is less than or equal to 3.4v, the battery is dead; otherwise, you can charge it using a bms and a charge adaptor.

a) Immediately check the voltage. It could be dangerous if it is above or below the typical limits.

b) Charge the battery using a reliable charger.

How can you jump start a li-ion battery that has died?

Place the batteries next to each other. After that, connect two short insulated wires by matching the polarity of the two batteries. The batteries’ polarities are positive to positive and negative to negative. The procedure will assist in transferring power from the active battery to the dead battery.

How can I keep my li-ion battery in good condition?

Here are a few tips for keeping your li-ion batteries in good condition.

1: Always store your batteries at room temperature.

2: Rather than carrying a spare, consider purchasing a high-capacity li-ion battery.

3: Allow partial discharges but prevent full discharges (usually)

4: Do not fully discharge lithium-ion batteries.

When lithium-ion batteries are not in use, how should they be stored?

The batteries should be charged to around 30 to 50 percent capacity and stored at room temperature. To avoid overcharging, we recommend charging the batteries roughly once a year. Note from PowerStream: Test results show that partially depleted lithium-ion batteries store best.

How low can a lithium battery be discharged?

If you prevent really severe discharges with lithium batteries, you will have a longer cell life. Except in emergencies, we recommend sticking to a maximum DoD (Depth of Discharge) of 70-80 percent.

What causes lithium ion batteries to fail?

The first and most consistent way to harm a lithium battery is to overcharge it. If you charge it above 14.6V, the cell will be damaged quickly. As a result, the weakest cell shorts out, significantly increasing voltage across the other cells.

Is it hazardous for lithium-ion batteries to be cold?

Lithium batteries rely on chemical reactions to function, and cold can reduce or even stop those reactions. Unfortunately, charging them in cold weather is less successful than charging them in warm weather because the ions that produce the charge do not move effectively in cold weather.

Why do lithium ion batteries fail in cold temperatures?

When charged at fast rates in cold conditions, lithium batteries suffer from a process known as lithium metal plating on the anode. This could result in a battery internal short and failure.