How To Fix Common Ryobi 40v Battery Problems

Ryobi cordless power tools are one of the most popular brands out there, and for good reason. They’re reliable, easy to use, and offer great value for money. But like many things, they aren’t perfect. And while fixing a few minor issues might be simple enough, others require professional help.

In fact, we’ve seen quite a number of people complaining about their Ryobi cordless power tool batteries dying prematurely, and it seems that the problem isn’t limited to just one brand either.

So what exactly causes a Ryobi cordless power battery to die? Well, it could be anything really, from poor quality components to incorrect charging techniques. But regardless of the cause, it’s always better to prevent such problems occurring in the first place.

And fortunately, there are plenty of ways to do that. For example, you can make sure that your Ryobi battery charger is working correctly, and that the voltage levels being fed into the battery pack are correct. You can also ensure that the battery itself is charged properly, and that the battery cells themselves are healthy and free from corrosion.

How To Fix Common Ryobi 40v Battery Problems

But even once those steps have been taken, there are still certain situations where a Ryobi battery may fail. These include:

– Overcharging the battery

– Using too much current when using the battery

– Using a damaged or faulty battery

– Using an old battery

– Using a low capacity battery

– Using a battery with excessive internal resistance

– Using a battery that has been stored incorrectly

– Using a battery which has been exposed to extreme temperatures

– Using a battery in a wet environment

– Using a battery on a damp surface

– Using a battery without sufficient ventilation

– Using a battery under high humidity conditions

– Using a battery at excessively low temperatures

– Using a damaged battery

– Using a defective battery

– Using a bad battery

– Using a dead battery

– Using a flooded battery

– Using a weak battery

– Using a dry battery

– Using a cold battery

– Using a hot battery

– Using a very hot

Why Do Ryobi 40V Batteries Fail?

The most common reason a Ryobe battery fails is because it’s been damaged. This happens when the battery enters sleep mode too often. Other common causes include extreme temperatures and dirty battery contacts. These are just some of the many things that can go wrong with a battery.

When a battery fails, it will cause the charging system to light up like a Christmas tree. A flashing green and red indicates that there is something wrong with the battery itself. You might see a blinking green and red light on the charger itself, too.

If your charger flashes green and red every time you plug in the battery, you know you have an issue. Below, we’ll take a closer look at what each color means and how to solve the problem.

Ryobi Charger Red And Green Lights Flashing

Whether you have a Ryobi Cordless Mower, Pole Saw, Leaf Blower, or one of many other tools available, chances are good that you’ll face battery failure someday. When that happens, it’s important to understand why your batteries fail and how to fix them.

If your Ryobi charger is blinking red and green when you try to recharge the battery, then you’ve probably experienced battery failure yourself. This could mean that the battery itself is faulty or that there’s something wrong with the charger. Either way, here are the most common reasons why your batteries might stop working and some simple solutions for dealing with the problem.


The best solution for replacing a dead battery is to replace it entirely. You don’t want to use a cheap replacement because you’ll just end up with another dead battery. Instead, look for a quality brand name like Ryobi or Bosch. These brands offer warranties that cover both the battery and the charger.


Another option is to simply charge the battery again. While this won’t always work, charging the battery often helps keep it healthy. To do this, plug the charger into a wall outlet and let the battery fully drain. Then unplug the charger and connect it to a power strip. Plug the power strip into a wall socket and turn the power strip on. Turn off the power strip once the battery reaches full capacity. Repeat this process every couple months.


Overheated batteries are usually caused by using a charger that has been sitting idle for a long period of time. If you’re not sure if your charger is overheating, check its temperature gauge. It should be between 100°F and 120°F (38°C and 49°C). If it reads higher than that, then the charger is likely overheating.

Dirty Contacts

Dirty contacts are also a major cause of overheating. Dirt collects around the contact points and prevents current from flowing properly. Cleaning these contacts can help prevent overheating.

Extreme Temperatures

Batteries lose their ability to hold a charge when they get extremely hot. If the battery gets too cold, it may start to discharge even though it hasn’t been used.

Ryobi Replacement Battery

The genuine Ryobi replacement batteries are designed to work with all Ryobi tools. They are built to provide you with long lasting power that won’t let you down. These batteries are compatible with all Ryobi 40v tools. They are built with high capacity cells that give you longer run times without sacrificing quality. You’ll never worry about running out of juice again.

These batteries come with a built in battery life indicator that lets you know how much charge is left. This helps you make sure you don’t overcharge your tool. And it gives you peace of mind knowing that you’re getting the most out of your investment.

All of our replacement batteries come with a warranty and support. If anything goes wrong with your battery we’ll replace it free of charge. We offer 24/7 customer care via email and phone. Our friendly team is always happy to help.

Ryobi Battery Entered Sleep Mode

The most common cause for your 20V/40V Ryobi Charger showing blinking red and green lights is due to the battery being discharged too far. When a battery is fully charged, it will show a steady blue light. If you see the charger displaying the flashing red and green lights, there are several possible causes.

1. Over discharge – A battery that has been over discharged will display a steady red light. You can tell if the battery is still good because it will continue to blink while plugged into the charger.

2. Low voltage – A battery that has lost some of its capacity will display a steady red or green light depending on how much power it has left.

3. Faulty charger – If the charger itself is defective, it will display the same warning signs as a battery that has been over-discharge.

4. Poor connection – If the charger isn’t properly connected to the battery, it could display the same warning signs.

5. Bad battery – If the battery is damaged, it won’t be able to hold a charge anymore and will display a steady red and green light.

6. Dead battery – If the battery has died, it won’t be holding a charge anymore and will show a steady red and green signal.

The Fix Option 1 – Micro Charges

Ryobi batteries are notorious for failing to hold a charge. They often fail within months of purchase, even though you’ve been charging it regularly. If you’re tired of having dead batteries, there’s a fix option out there for you.

This method is the easiest, safe and simple way to try to revive your dead Ryobi battery. You’ll need patience while following these directions, because it takes some time to recharge the battery. However, once it starts working again, you’ll be glad you did.

The Fix Option 2 – Use a Second Battery To Jump Start The Sleeping One

If you are having trouble getting your laptop to turn on, it might be because one of the batteries inside is dead. This happens quite often, especially if the computer was used for long periods without being plugged in. If you want to jump start the battery, follow these steps:

1. Remove the power cord from the wall socket.

2. Turn off the computer.

3. Take out the battery cover.

4. Unplug the positive (+) terminal from the motherboard.

5. Connect the positive (+) terminal of the new battery to the +12V rail on the motherboard.

6. Plug the power cable back into the wall socket.

The Fix Option 3 – Use a DC Power Supply

If you are having trouble getting your iPhone to charge, it could be because the charger isn’t providing enough current. If you are using a USB cable to charge your phone, there’s a simple fix that will make sure you don’t run into this problem again.

You might think that just plugging your device into a different port would work, but it won’t. You see, Apple uses what’s called a “wall wart” style charger for iPhones. This type of charger provides both AC and DC power. However, most people use the AC portion of the wall wart charger to provide power to their devices. So, even though you plugged your iPhone into the correct port, the charger wasn’t actually delivering enough current to charge your device.

Now, let me explain how to fix this issue. First, we must determine whether your device needs 12 volts or 24 volts of power. To do this, simply look at the bottom of your iPhone. There should be a sticker that says either 12V or 24V. If it says 12V, you need to purchase a 12 volt adapter. If it says 24V, you need to buy a 24 volt adapter.

Once you know what you need, head over to Amazon and grab one. Then, follow these steps:

1. Plug the adapter into the wall socket. Make sure that the red (+) side goes into the wall socket and the black (-) side connects to the adapter.

2. Connect the white wire from the adapter to the positive battery terminal on your iPhone.

3. Connect the black wire from the adapter to your computer’s USB port.

Replacement Charger

The Ryobi 40V Battery Chargers are compatible with all RYO BI 40-volt Lithium Ion Tools and Batteries. This charger features advanced charging technology, allowing you to charge up to three times faster than standard chargers. With the included USB cable, you can recharge your small electronic devices while it charges your tool.

Battery Too Hot or Cold – Ryobi Charging Temperature

Li-ion batteries are great for powering devices like cordless drills, lawn mowers, hedge trimmers, chainsaws, etc., because they offer longer run times and less maintenance compared to alkaline batteries. However, there are some drawbacks to Li-ion batteries that make them less desirable than alkalines.

One of those drawbacks is that they don’t work well outside of certain temperature ranges. They won’t function properly above 113 degrees Fahrenheit (45 degrees Celsius), and they won’t charge correctly below 32 degrees Farenheit (-2 degrees Celsius). This makes them unsuitable for outdoor use during the summer months.

Another problem is that they tend to heat up quickly when used outdoors. If you’re working around a gas grill, propane tank, or fire pit, you might find yourself needing to keep your batteries cool. You could do this by keeping them in the refrigerator, but that isn’t always practical.

If you want to know how to tell if your batteries are too hot or cold, read on.

Corroded or Dirty Battery Terminals

If you notice that your Ryobi charger is telling you that there is a problem with your batteries, it could mean that one of the metal contacts on the charging port is corroded or dirty. This can happen over time because of exposure to moisture or dirt, or even just normal wear and tear.

The good news is that it’s easy to clean out the contact points. Just follow our step-by-step instructions to get rid of the corrosion and restore your charger to working order.

What If None Of These Solutions Work?

If none of these solutions work then it is likely you are dealing with either a faulty battery or a faulty charger.

The best way to test which part is the faulty part is take your battery down to the nearest store that sells Ryobi batteries and try it on one their chargers. If the same fault occurs, then you have a faulty batter, if the problem does NOT occur on a different charger then you have a faulty charger.

Where Can I Buy Replacement Parts?

If you’re like most people, you probably don’t think about batteries very often. You just plug things into outlets and turn them on, right? But did you know there are different types of batteries out there? And what do those different types mean for you? Let’s take a look at how to choose the best type of battery for your specific needs.

The first thing you’ll want to figure out is whether you need a rechargeable or disposable battery. Rechargeable batteries can be used over and over again, while disposable ones must be replaced once they die. Disposables are usually cheaper, but they won’t work as well because they lose power quickly. So, unless you plan on buying a lot of batteries, it might make sense to go with a rechargeable option.

Next, you’ll want to decide whether you need a primary or backup battery. A primary battery powers something else, like a flashlight or radio. Backup batteries keep your device powered up in case the main one dies. They’re great for camping trips, road trips, and emergencies.

Finally, you’ll want to pick a size. There are three basic sizes: AA, AAA, and D. AA batteries are small and inexpensive, while AAA batteries are larger and cost more. D batteries are even bigger and cost even more. To find the perfect fit for your project, use our handy guide to choosing the right battery size.

You can find a wide variety of batteries at home improvement stores, hardware stores, and big box retailers. Just check the label to make sure you’re getting the right type of battery for your application.

Are Non-Genuine Ryobi Parts Available?

If you’re looking to buy replacement parts for your Ryobi tools, you’ve come to the right place. We’ve got everything you’ll ever need to keep your equipment running smoothly. From batteries to blades, we carry it all. And because our products are manufactured to exacting standards, you know you’re getting quality every time.

We offer a variety of replacement parts for most popular brands including Craftsman, Milwaukee, Bosch, DeWalt, Hitachi, Makita, Stanley, SnapOn, and many more. Our online store offers free shipping on all orders over $50. If you don’t see what you’re looking for, contact us and we’ll help you find exactly what you need.

Ryobi Replacement Battery

The genuine Ryobi replacement batteries are designed specifically for use in Ryobi tools. They provide up to four times longer runtimes than standard alkaline batteries. These high capacity batteries are built to withstand tough jobsite conditions including extreme temperatures, dust, humidity, vibration and shocks. When you’re ready to replace your original battery, it’s important to choose the correct type of battery. You’ll want to make sure that you purchase a genuine Ryobi replacement battery.

Ryobi Battery FAQ

A Ryobi cordless tool can be fixed if there are problems with the battery. A simple inspection can reveal whether the battery needs replacing. If it does, it’s usually cheaper to replace the entire unit rather than just repairing one component. Here are some questions about fixing a Ryobi battery.


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