How to tell if battery charger is bad?

The rechargeable battery charger offers quick charging and also allows you to charge many batteries at the same time. However, like all other chargers, battery chargers also causing problems and if you are not sure, whether or not your battery charger is running well, the following guide will be helpful.

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How to tell if a rechargeable battery charger is bad?

Here we give you several steps to make sure if the rechargeable battery charger is bad. Evaluating your battery charger is a simple process.

Step 1:

Connect your charger to a source of electricity. Remove any batteries that are being charged in the unit.

Step 2:

Turn on your voltmeter. Make sure there is the power to the unit. Connect the test probes to the voltmeter, according to its instructions. Set the selector switch to the highest volt DC level or whatever is recommended in the voltmeter instructions.

Step 3:

Take a battery or battery pack that is compatible with your charger. Make sure there is no corrosion on the batteries and that they are not leaking liquid. Touch the positive end of the battery with the red probe. Take the black probe and place it on the negative side of the battery.

Step 4:

Check the reading on the voltmeter and note the position of the pointer. If it is on the left side, or negative, change the probes. If it is on the right side, it will indicate that the battery is receiving a charge. The position on the voltmeter will determine the amount of charge received.

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Step 5:

Check the battery charger to see how much power it is producing if you continue to receive negative readings from the batteries. A negative reading indicates that the charger is not working properly and you should replace it. If the charger has sufficient power flow, the batteries are more likely to be bad and simply not holding the charge.

Do battery chargers go bad?

Yes, battery chargers go bad if you won’t take care of them properly. Following are the reasons and their solutions.

1. Poor input power source or you have kept the charger in protection mode.

2. The temperature of being outside of the normal range of the charging.

3. And if its safety timer expires.

Because of these main three reasons, your battery chargers may go bad.

How do you troubleshoot a battery charger?

No battery charger is the same as another since the components vary between the different models, even within the same family. And one of the components that are attracting the most attention from brands is the battery: even if two phones have the same capacity, that does not mean that they charge as fast.

Fast charging is essential to increase the speed, also that a series of factors occur. Do your batteries take a long time to recharge despite having a fast charge? Let's see why this problem can occur.

The charger is not suitable:

This is essential: each manufacturer delivers a charger with the phone, a component that is responsible for adapting to the requirements of the smartphone to deliver the necessary energy at all times. So, if you change the charger, the battery will most likely not regain its capacity as quickly as usual.

The charger is usually the key for the charge to be as fast as the manufacturer claims you need to use the phone charger. Sometimes fast charging technology is compatible with a standard (Qualcomm Quick Charge, for example) and you can exchange chargers as long as they maintain compatibility with said technology.

But you will not always get maximum speed. Since most brands implement their fast charging solution, there is usually no choice but to buy a new charger for the exact phone model in case you have lost it.

If you notice that the charge is slow, the first thing you should discard is the charger: if it is not the mobile one, find yours. If you have not changed, you will have to rule out the rest of the following problems before buying a new charger. As long as you want fast charging, which may not compensate you.

The batteries are too hot:

Fast charging technologies implement safety systems that verify the temperature of the components involved in the process at all times. So, when the battery heats up excessively (usually because you use it while charging), it is common for the system to reduce the charging power to minimize overheating.

Try not to touch the battery so that it recovers the temperature. Another good idea is to turn it off and let it charge without the system is on. And if the temperature is too high (the mobile is annoying to hold because it is very hot) we recommend that you remove the charging cable, turn off the phone completely, and do not turn it on again until it cools down.

The plug is bad:

We often put too many devices to charge on the same power strip. What if the laptop, the tablet the mobile, the headphones, and a host of other devices, with the risk that this entails.?

In the case of using an outlet that does not offer good contact, or that produces an irregular current flow, the phone charger may be unable to start the fast-charging process because it cannot establish a stable power flow and sure. So, if the power outlet is not fully guaranteed, place the phone charger in a less problematic outlet.

The load is coming to an end:

Fast charging is not done in the same way throughout the battery percentage: when it reaches the end (above 80%) the charger and the mobile regulate the charging power to reduce it, often to slow charge values. This increases the life of the battery; even though the load sometimes takes longer in the final stretch than in the rest of the process.