Charging A Dead LiPo Battery

Charging A Dead LiPo Battery: 5 Simple Steps

Sometimes you unknowingly drive your plane or vehicle excessively long. Or leave the charger on and miss to turn off the LiPo. 

You might wind up in a circumstance where you’ve entirely released your battery’s charge. This can be a very awful situation for you.

Would you care to learn how to charge a dead LiPo battery?

Follow these easy 5 steps. Start with reading the voltage. Next, charge the battery slowly. Repeat the charge and discharge procedure. Then reserve the battery in a cool condition. Finally, charge the battery fully.

We understand this won’t suffice for you. That’s why we’ve talked about each point in detail. Take a glance at the whole writing to know more.

5 Steps to Recover A Dead LiPo Battery

A precise procedure is to be maintained to save a LiPo battery. And, some particular tools are to be utilized en route. Let’s take a look at it.


These are the tools you would need-

  1. Digital multimeter
  2. LiPo Balanced charger
  3. NiMH capable charger

From checking your ESC with a multimeter to many other electrical chores. A digital multimeter comes in handy.

Once you’re done arranging the tools proceed carefully with the following steps.

Step 1: Read The Battery Voltage 

The primary thing you do before restoring a battery is to examine the voltage. Utilize a digital multimeter to do it. 

You need this data to see whether the battery has changed into rest mode. Each LiPo battery has a security circuit. It goes about as a defense that winds down the battery if it becomes over-released. 

This happens when the battery isn’t charged over an extensive period. For most LiPo batteries the insurance circuit places it in rest mode. At the point when it releases down to somewhere between the range of 2.2 and 2.9 V/cell. It basically relies upon production. 

Any battery with a voltage beneath this “over-release” level isn’t prudent to be restored. Since they are dead, they won’t hold power any longer. On the other hand, if they hold power it’ll be extremely insufficient. So the battery won’t be effective.

Step 2: Charge The Battery

You should be extremely mindful to charge gradually. Assuming the charge is underneath 3.0V, go at a pace of 1/20 C. Charge until it reaches over 3.0. 

You might need a NiMh or NiCad charger. Almost all chargers retain these protection elements. 

Speed up to 1/10-1/5 C when the battery gets somewhere around 3.0-3.7V. When it reaches over 3.7V, you’ll be able to charge at 1/2C. Wait up till maximum charge.

Step 3: Charge And Discharge The Battery

Once the battery is completely powered, record the capacity. Allow it to begin releasing by relaxing through the evening. Or in the next few days. See how quickly they discharge. 

Attempt the charging or releasing process again. Estimate the battery power. 

If it altogether fails its power, you ought to most likely recycle it. Contrariwise, you have luckily restored it effectively.

Step 4: Store The Battery at A Very Low Temperature 

Some experiments demonstrate refrigerating the lithium battery further develops security and vitality. 

Therefore set the battery in a hermetically sealed pack. Then, at that point leave the pack in a cooler for almost a day. Ensure the battery is secured from dampness. So it won’t get soggy. 

Remove the battery from the chiller and let it defrost. Until it arrives at room temperature. Mostly, it requires 7-9 hours.

Step 5: Fully Charge The Battery

Once the battery has been restored to room temperature. And no dampness has remained. You should continue charging the battery completely. Charge it using your usual LiPo balance charger.

Due to refrigeration, the battery’s charge tends to fall completely. We have to sufficiently charge them another time. Otherwise, your air hogs helicopter couldn’t be charged.

Safety Guides

Charging a LiPo battery requires careful consideration. Hence we’re mentioning some tips for your security. Some of these can be useful for charging lipo batteries through balance lead.

Anyways, let’s check the tips out-

Tip 1: Balance The Battery 

In case the quantity of charge between the cells is contrasting. Or if it’s imbalanced, one of the cells will be overcharged. The battery will also over-discharge during recharge or discharge. 

At that point, the battery will collapse. Unpleasantly, it may blow up or detonate. To forestall such disasters, an unstable battery might turn into a misstep. However, you can try charging the LiPo battery without the charger.

In this condition, utilize the LiPo Battery Checker and Balancer. Stabilize the voltage disparity between the cells so that it’s ± 0.02V or below. 

Often a battery that has quite recently been bought can’t be charged. It’s because of an unstable battery. If the voltage fluctuation of every cell is about 0.5V, it’ll be restored. Just if the offset is changed with a balancer. 

Then again, if you can’t charge the battery after utilizing it ordinarily. The stability has failed enormously. And one of the cells is distressed which is at 0V. At that level, it’s hard to restore. Before this sort of situation occurs, modify the stability during the hold.

Tip 2: Keep Checking The Battery Condition

At the point when you’re not utilizing the battery for quite a while. Reserve it in a charged condition of around 40-70%. 

The lipo battery rarely releases charge typically. Yet, it might spill because of decomposition. Despite the fact, that you won’t take it up for quite a while. Review the condition of the battery now and then. Use a battery checker in this case.  

Don’t recharge your battery continuously. The integral microcomputer that regulates charging may turn out bad. For this, the battery might be shown as expired. Even though the battery status is ample. 

In such cases, it could be revived. If you rehearse the entire method. Which is involved making it completely powered without a moment’s delay. Furthermore, utilize it consistently until the battery gives out.

Tip 3: Carefully Observe The Whole Process

Don’t charge the battery without guarding it in any of the aforementioned stages. In case the battery moves to bulge or alters its condition, cease the procedure instantly.

Charge a LiPo battery in a flame-resistant area. It’ll give sufficient airing.

If you discover the battery is inefficient to adjust, dispose of it. LiPo batteries that can’t be balanced might burst into flames.


Question: Is it alright to operate LiPo batteries in a chill condition?

Answer: LiPo cells don’t serve sufficiently in frigid temperatures. It’s not advised to operate the batteries in this case, especially if it’s -10C. In these conditions, your battery could lag your vehicle without notifying you.

Question: What’s the durability of a LiPo battery?

Answer: LiPo batteries mostly don’t survive more than 300 charge rounds. Consistently abandoning them on a full charge, emptying them. Or endangering them to heat will diminish their durability drastically.

Question: How should I store a LiPo battery?

Answer: Don’t abandon your LiPo cells on a full charge over 2-3 days. Release your battery charge below 3.6v-3.8v for each cell. Keep it that way till you’re getting it out to utilize another time.

Wrapping Up

Hope you got an explicit understanding of how to charge a dead LiPo battery. If you observe all the actions the process wouldn’t be overwhelming for you.

In any case, if you feel anything unusual don’t forget to consult a professional. And always maintain your safety while charging these batteries.

See you soon!

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