Will a Float Charger Charge a Dead Battery: Introduction,Difference and Usage

Batteries cannot be by itself. There are other items that are needed to recharge batteries and make the batteries alive again. One of those items is a float charger. If you don’t know what it is, don’t worry! We will discuss all about float chargers here, from its definition, the difference with other items, and its usage.

What is a float charger?

Float charger is most commonly used for emergency use, especially when the discharge of the battery is not consistent.

Float charger is usually done in parallel. It means that the load, the charger, and the battery are lined up. On a normal occasion, the charger gives the current to the load. However, when there is a power failure, the battery gives the power to the load untuk the power is back on. As it can be seen, it is a two-way power where one object backs up the other one for current. This way, the load will be able to work properly even when there is no electricity.

When it comes to a float charger, the voltage is not that much, at least 2.4 volt per cell. That does not stop some float charger from having “thermal runaway” though. It is a concept where the battery has extra heat. One of the ways to solve this problem is by using a charger that is temperature-compensated. A temperature-compensated charger will make the battery more reliable and also extend the life of the battery.

From the definition, we can see that a float charger is the most useful when we need constant power all the time, as we need to have power.

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What is the difference between float charger and regular charger?

Float charger is one of many chargers that are available for the battery and load. There are other batteries such as trickle charger and regular charger.

Float Charger vs. Trickle Charger

First, let’s talk about what a trickle charger is. As the name implies, it’s the process where the battery is being recharged slowly. The process takes the energy from one device and then transmits it to the battery. Now, let’s talk about the difference between float charger and trickle charger.

First, let’s talk about the float charger. One of the advantages of a float charger is how it has a smart sensor that can detect whether the battery is full or not. So when the battery is full, the charger will be off, and vice versa. So there is no need to worry about looking after the battery. There is no need to worry about attaching the charger to the car battery either, as it will not damage the battery if it is attached indefinitely. Floating chargers can also help to prolong the battery’s lifespan and quality. So, using a floating charger is best for those who want to use their battery for a long time.

Unfortunately, floating chargers charge very slowly. You will have to be patient if you are using it.

Meanwhile, trickle chargers, as the name states, slowly trickle the energy to the battery. This makes trickle chargers perfect for those who need to have energy continuously without interruption.

Unfortunately, trickle chargers do not have the on and off feature like floating chargers. This means that the battery can be damaged if it’s full at one hundred percent and not being discharged in a long period of time. And since there is no automatic on and off setting, we will have to discharge the battery manually.

From here, we can assume that float chargers and trickle chargers are pretty similar, but they have some differences. They are able to give proper energy to the car battery, but trickle chargers are more effective at giving energy continuously. However, the setting for trickle charger might be inefficient for those who are too busy, since there is no automatic setting. If you need automatic setting, then the best way is to use floating chargers.

But hold on! There is more about floating chargers than charging batteries. In fact, it is “charging” in quotation marks. Which leads to the next section...

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How do you use a float charger to charge a dead battery?

Technically, when you use a float charger, you don’t charge the battery. What you’re doing with it is maintaining the energy of the battery. The battery’s voltage is maintained to at least 2.25 volts per cell, and the chargers slowly supply the energy until it’s full. When it’s full, then the charger is discharged from the battery. However, when the energy is low again, the charger will turn itself on and charge again.

If you notice from the process above, the object’s energy is not totally dropped. Instead, there is some energy left when the charger starts recharging. That is why floating chargers do not charge the objects but “maintain its energy.” After all, the term dead battery is used when the battery no longer has energy.

So what happens when the battery is completely dead? When the battery is completely dead, unfortunately, you cannot use the charger to charge the battery. It will be an ineffective move to do so. When the battery is completely dead, you have no other choice but to recharge.

From here we can assume that floating chargers are the best kind of battery for those who need to have constant power for their battery. After all, the charger will assure that the battery’s energy will be maintained until the end. Moreover, floating chargers have an automatic switch, making it perfect for those who are too busy to regularly check the battery. The switch won’t damage the battery, as the battery won’t get overcharged. Of course, this means high-quality batteries that will remain that way until the end. It also means that there is no need for the charger to be detached from the battery. Everything is done automatically, making it easier for you. So if you want to buy a floating charger, don’t hesitate to do so!