Why is my Black and Decker Battery Charger flashing red? problem solved | Home Zesty (2023)

He needed to charge a battery for his tools, but when he tried, the LED on Black and Decker's charger started blinking. What does that mean? Charger or battery empty? More importantly, what can you do about it? Don't stress over a little light. I will explain what the different flashing light patterns indicate. The good news is that your charger works fine, but you may need a new battery or more patience before charging the tool you need for your project. Before you know it, you'll be back at work building or repairing things with your Black and Decker tools.

Why is my Black and Decker Battery Charger blinking red?The Black and Decker battery charger will flash red to let you know there is a problem with the battery. It depends onifthe light flickers, usually indicates a bad battery or the battery is being charged at too high a voltage. Luckily, both have simple and practical solutions that you can do at home.

Why do Black & Decker battery chargers blink?

There are two standard flash patterns for most Black and Decker battery chargers. Each indicates a different problem with the battery, but the charger is fine. Unfortunately, many assume that flickering means the charger is defective or burned out. Don't waste money throwing away a perfect charger.

The good news is that with a second charger you have an emergency backup. It's a smart plan anyway. You never know when you'll need more than one battery to get the job done. But don't give up on your blinking B&D just yet.

Be sure to read all of the instructions that came with your model. Some have advanced features that may include additional flash patterns. A charger that can tell you exactly what's wrong is a real blessing.

Long and short blink pattern

To determine what went wrong, you need to investigate itthe blink patternon your Black and Decker battery charger. If you get a series of alternating long and short flashes during itLoadingDrill the battery, then the battery has a temperature problem. The charger will not work if it detects that it is too hot or too cold.

blinking is not a problem; It is a safety mechanism to protect you and your batteries. The solution is simple. You have to feel thatBatteryand take some time to let it cool down or warm up. If you have the charger near a heating duct or in an unheated garage during the winter, this could also be the problem.

You can easily bring the charger and batteries closer to room temperature. For best results, always charge batteries between 18°C ​​and 24°C (65°F and 75°F). This helps extend the life of your device and power adapters.

Ensure that you never use Black and Deck batteries or chargers in temperatures below +40°F (+4.5°C). There is also a risk of charging above +105 °F (+40.5 °C). Killing battery or charger life will do no good.

More importantly, you don't want to risk dying the batteries from a rapid change in temperature or from too much heat. Battery acid is dangerous to people, the environment and everything it lands on. It's always best to heed manufacturers' warnings.

fast flashing

The other flash pattern on a Black and Decker 40V charger is a series of short, rapid flashes. In this case, the light indicates a defective battery. If your power supply is damaged or underpowered, it will trigger this reaction in your charger. Therefore, you should remove it immediately and stop loading it.

Unfortunately you may have toreplace the batteryif it happens. However, if you are using a lithium-ion battery, there may be another solution. I'll walk you through the process of revamping this style in the next section.

For smaller batteries between ten and eight volts, I also recommend the eighteenFlagpower PCC692L Li-ion Battery Charger. The included intake system will help you dissipate the heat associated with charging more evenly. There is also a 30-day money-back guarantee and 18 months of excellent manufacturer support should you have any further questions.To learn more about Amazon, click here.

Secure the batteries to prevent the Black & Decker charger from flickering

When the Black and Decker battery charger flashes to alert you that the Li-Ion battery is low, it doesn't always mean the end of the road. Unlike many older styles, these areLithium batteries are regenerablein some cases. However, you must follow the recovery steps.

This is sometimes referred to as "boosting", "reviving" or "restoring" a battery. Regardless of what you call the process, it's easy enough for most DIYers to pull off in a few hours or less. You will need safety goggles, a voltmeter and a charger.

I recommend usingblack+decker Carregador BDFC240 9.6 V und 24 Vfrom Amazon for reconditioning batteries. This O.E.M. The approved part is a great replacement or aftermarket charger that fits multiple B&D batteries. You will be pleasantly surprised by its versatility.Check reviews by clicking here.

Steps to Rebuild Lithium Ion Batteries

Not all batteries are recoverable. Only lithium-ion cells work like this and can be brought back to life. However, it is not a guarantee that a battery can be recovered. Especially if he has no power, you might not be able to save him. In this case you will need to get a new battery.

SomeOther batteries can also be recycled, but you need a different process. The list below is for lithium batteries only. you can try toodestroy the battery, but I consider it an advanced technique. Try this method first.

Save your batteries step by step

1. Be sure-Please wear your safety goggles. Your lithium ion batteries contain a flammable electrolyte and you must wear protection to stay safe.
2. Check your tension-Use a voltmeter to check the battery for signs of current. Lithium batteries go into sleep mode when the power is very low. Therefore, a battery registering a minimal charge can simply be shut down without running out of energy.
3. Place the battery in a chargerSome chargers have a battery wake-up function. This can help you revive a dead Li-ion battery. Remember, it's not a guarantee, but it usually works.
4. Wait a minute-After one to five minutes, you should remove the battery and check again. If the charge is increasing or staying stable, you probably have a conditional Li-Ion on hand.
5. stop loading-Place the battery in the charger and allow it to fully charge. This can take several hours. You have to be patient and let it charge fully.
6. download it again-Use all the energy you just gave to that battery. Preferably, you should use your Li-Ion battery in a device that turns on quickly.
7. Is-When the battery dies again, you need to freeze it. Yes I mean put the battery in a plastic bag and put it in the freezer for twenty four hours.
8. Thaw and loadBring your frozen battery to room temperature and then fully charge it again. After that, be sure to store the battery at or below room temperature.

Always keep your Li-Ion batteries at the right temperature and check them regularly. You have to charge every empty or weakly charged cell. Contrary to popular belief, letting the battery discharge is not the best option and it's fine for a lithium battery to charge it up again when it's still charged, quite the opposite. If possible, you should not let this type of battery fall asleep or leave it completely discharged.

Black & Decker battery charger does not flash

What happens if my Black and Decker 40v or less battery charger won't flash and charge? Is it dead in the water or can the device still be saved?

Well, the answer depends on why it's not working properly. Even the best charger can wear out over time. However, some problems are not as bad as they seem. Do not attempt any major repairs at home unless you are an electrician or a qualified professional.

Start with the obvious. Check the cable connections to the wall and charger. Then make sure that the battery is inserted into the charger with the correct polarity. Sometimes there is no problem other than a small human error.

Ask yourself if the loader had an accident. Plugged in during a power outage? Overvoltages can damage the charger. In addition, water, including moisture in the air, can cause serious damage to your device.

If you have the voltmeter I recommended for recharging Li-Ion batteries, check the charger to see if it's getting power. When powering a charger, keep in mind that the light could be defective. Then manually check the battery with the meter to see if it's charging.

Are you looking for a quality replacement charger? try thoseblack+decker BDCAC202B 20 V MAX..This ultra-fast charger from Amazon convinces with a charging time of 45 minutes. Even better, maintenance mode can optimize your charge so your batteries last longer. make sureOrder from an authorized retailer by clicking here.

Charger Manuals for Black and Decker

final thoughts

Black and Decker's 40V and 20V chargers are specific to the companies' products. You should never use a B&D tool charger unless specifically supported. The instruction manual warns about this, so you can read everything if you need more details. For those who don't have a manual, you can find a copy online.

Luckily, in addition to remanufacturing lithium batteries, you can also check your charger. If your B&D charger has other problems,Watch this troubleshooting videoSpikes. You can fix it yourself pretty quickly.

A small problem with the battery does not have to be a big problem. A blinking charger isn't dead, but it lets you know there's a problem so you can fix it.

Related post:Black and Deck 20V Battery Charger Instructions