ryobi battery will not fully charge ryobi battery will not fully charge

This step is critical! Plug in the battery into a lithium-ion battery charger and charge it to maximum capacity. More than likely, at this point, your battery is in a coma and just needs to be revived with a little jump to put a surface charge on the battery that bypasses the control board. 9 Easy FixesContinue, Are you facing problems with tracking your babys sleep patterns because your Owlet sock isnt charging when plugged in? link to 7 Possible Causes for Your Smoking (Steaming) Car Battery, link to HVAC Freezing to Ice: 4 DIY Fixes BEFORE You Call a Pro, Terms and Conditions for Home Battery Bank. It is possible that the charger does not work and the battery is overcharged. Dont plug your charger into an extension cord, but rather directly into a wall socket. Ryobi 18v. Lithium says fully charged but no energy As a general rule, a Ryobi charger will rapidly blink green when the battery is charging and will hold a solid green light when the battery is charged. You will have to buy an extra Ryobi battery from the online store. Confirm if the Ryobi Battery is Dead If the battery is totally dead, the whole process of reviving the Ryobi battery may be useless, so check if the Ryobi battery is dead. This results in an effect known as battery memory. Wait a few minutes before charging the battery in the Ryobi charger. to pop off the anti-tamper tab and remove the final screw.Using a reamer to pop out the plug. Connect the positive and negative cables to the respective battery terminals with your device. Most of the rechargeable Ryobi batteries are expensive, and users want to know how to fix a Ryobi battery that wont charge. ai thinker esp32 cam datasheet A simple charge and discharge procedure can help you skip the battery replacement costs. Fixing the battery that does not charge depends on what's wrong. Before I explain how to do this, its helpful to understand whats inside one of these batteries. During these years, the battery may experience sleep mode. If the discharge method fails to refresh the battery, some of its power cells may need replacing. However, it, If your driveway is bogged down with a fresh drift of new-fallen snow, it is a serious hassle to find out that, Read More How To Fix An Electric Snow BlowerContinue, In order to begin cutting tall grass with an electric lawn mower, you will need to know some important steps. Battery crystallization is a common scenario that puts the Ryobi batteries into sleep mode. For the smooth usage of the Ryobi batteries, batteries must be stored in a place with a controlled temperature. The second scenario is one that can be reversed, but it may come with a cost (losing out on a warranty). Youll need at 3 pieces of insulated wire, about 12 in length each. When it doesnt see a battery that meets the minimum threshold, it rejects the battery and gives you an error light. Why is my 18V/36V RYOBI Pole Pruner not starting? | TTi Ryobi Home / Uncategorized / ryobi battery says fully charged but won't work. ZTM2NDlhZjhhMDdiOTcyNmU3MjZhNTIxYzA4MzRkZjE3MDkwM2Y1YjcxNTNj Turn the Ryobi power tool back on and let it run until it stops again, before resting another 10 minutes. When I used a multimeter to check the DC voltage between the positive and the negative points of the terminals that go into the tool, I got a reading. Doesn't seem to have any charge in it. ucla environmental science graduate program; four elements to the doctrinal space superiority construct; woburn police scanner live. 2023 Guide, 3 Best Battery Replacements for Dewalt 20v 2023 - Buying, How to Read a Feeler Gauge- 5 Steps Process. That is not only a problem with the Ryobi 18-volt batteries but with any lithium batteries that . Were only providing a surface charge, and not really charging the battery. This is how to truly test the voltage of your Ryobi 18v battery. When you think it is high enough (Im guessing 10-13v) go ahead and quickly put the battery back together (without the screws) and test it in the charger. Above we have explained about fixing the Ryobi battery that won't charge. Thats why I like to test each of the cells immediately after taking the battery apart. Ryobi makes good affordable tools for the DIY handyman. Ways To Fix A Ryobi 18V Battery That Won't Charge | Battery Tools There was no reading between the negative and the unlabeled one, so this gave me the good idea that the unlabeled one was grounded somehow. Make sure that your chosen battery has the same voltage rating as the Ryobi battery. 2023 Guide, Is Ryobi a Good Brand in the Tools Industry? I recently faced a charging problem with my Ryobi 18V battery pack. If you believe Wordfence should be allowing you access to this site, please let them know using the steps below so they can investigate why this is happening. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. Orient the battery so that the negative side is on the same side hand that holds the negative and unlabeled wire, and the positive side corresponds with the positive wire. Batteries do not like extreme heat or cold. As the battery memory does not function properly, the battery tends to ignore the previous charge level of the battery and results in malfunctioned battery charging. ZGEzZGNlNDMwNDRjNjQ1ODllMDA1NTc1YWY1YTRiNzdkNTNjNTJlMDcwYTJj Take another Ryobi battery of the same amperage and connect the jumper wire. The high capacity of the Ryobi battery allows several uses before needing the recharge. If the battery is not charging due to the temperature outside the specific range for charging the battery. ZDg4ODUyZjViNTAwZWMyYmVmMjAxZGUxODBmNjc0MzlhYjlmMmQ2YTIxYWNi Im rather impatient, so I opt for the method Ive been doing for years. When this happens, the battery enters a state known as sleep mode. It simply involves putting your battery into the charger repeatedly until it charges. Here are some common tools that you need if the Ryobi battery wont charge: Depending upon the situation and the condition of the Ryobi battery, the list of required tools may vary. 2). Ryobi powers all these devices with lithium-ion batteries with different amperage ratings. Remove the cells from the battery compartment: Insert a slotted screwdriver under each cell, and gently lift them out. If you go with DeWalt power tools, you will get an extra battery for the uninterrupted supply of power, but Ryobi does not offer such perks. A fully discharged battery can go from empty to full in as little as an hour. The surface charge dissipates quickly, so you dont want to find that it charges, remove it, put the screws back in, and then go to charge it again only to find out that the surface charge dropped below the threshold. Only continue if they are all low but uniform in voltage. According to Mr. Purdy, heat is especially a problem when you're wirelessly charging. This guide applies to Ryobi One+18V Li-ion Battery (130501002), but should also have more general application. Ryobi Flashing/Blinking (Red, Green, Yellow, Orange) Light The process of fixing the Ryobi battery that wont charge is pretty simple and straightforward. N2E2YmI4ZjhjNGY1MDY2OTAzMGI2ZTJhNjkwY2IyOWQ5M2FmNDhmNmEyNDZi The problem is that the reason why you havent is that it has been raining nonstop for the last week. A common misconception with the newer Lithium-Ion batteries is that it doesnt matter if you leave them on charge because of the sophisticated technological changes that have been made to chargers. We can use a multimeter to check each battery. This brand is a reputable battery brand that has gone through testing and has shown excellent results. Replacement: When to Invest in a New Roof 2023 Guide, 3 Best Battery Replacements for Dewalt 20v 2023 Buying Guide, Milwaukee Fuel vs Non-Fuel 2023 Ultimate Comparison, 7 Best Router Bits 2023 Buying Guide & Review, 15 Best Rotary Hammer Drill For Concrete 2023 Top Picks Review, Top 9 Best Tekton Torque Wrench 2023 Review & Buying Guide, Top 10 Best Kenda Motorcycle Tires 2023 Review Top Picks, Top 10 Best Gunsmith Screwdrivers 2023 Review & Buying Guide, A voltmeter to check if the Ryobi battery is dead, Tools to repair the damaged components and the cables of the battery setup, Safe cooling procedure to control the temperature after long use, Fully charges the battery to put a stop to the slumber, DC power supply source if the extra battery is not available. In such a situation, make sure that every component and terminal is properly fixed. How To Charge Macbook Pro Without Charger? ZTAyYWVjNDE4MjcyNzI0ZDZjOGFhZTAwOTIxYmY5YjI4NjNmODhjYTlhMTM2 Basically, the battery put itself into a coma to prevent further trauma and now it cant be revived at least not without some intervention. How to Fix a Ryobi Battery That Won't Charge - The Battery Genie Robert lives in central Michigan and enjoys running, woodworking, and fixing up small engines. To complete this task, you should ensure that the healthy battery has the same voltage rating as the dead battery. The experts explain that this is usually because Ryobis can go into sleep mode, then get stuck there. Before turning your blower over to a repair shop, you can troubleshoot the problem at home. When I place it on the charger, the charger says that . Ryobi 36V Battery reads fully charged but won't work in my tool Last update: 15/11/2022, 11:12 Applicable Models R36BTY2, R36BTY4, R36BTY2, BPL3660D, BPL3690D Firstly, put the battery in another tool to check that the fault lies with the battery and not the tool. Dont shallow charge a NiCad battery as they work with a memory effect. 12 Reasons Why Electric Mowers Are So Efficient. The continuous use of the battery may raise the temperature of the internal components, and in such situations, you need to stabilize the temperature of the battery first. If the reading on the voltmeter is ranging from 0 to 11.9 volts, the battery is probably dead, or heaving drained. I took note of a thermistor that was taped to the side of one of the cells. Note: Remember to unplug the charger before connecting and disconnecting the jumper wires. Home Battery Bank is compensated for referring traffic and business to these companies. Typical reasons why Ryobi 18V batteries don't charge are cells that have been over-discharged. You may also hear this referred to as going into "sleep mode". Your battery is likely past the point of repair and should be replaced. Generally, calculators use very little power, so most of them can last, Read More How Long Do Calculator Batteries Last?Continue, Batteries are critical components in the workings of a vehicle, and Duralast batteries are a great choice, with several incredible features. ZGVhYTg4NDQ5YTZmOWI5YmE5ODdiY2UyNWEwNjZlNjNmOTVkMmQxOTc5ODAw We are compensated for referring traffic and business to Amazon and other companies linked to on this site. ryobi battery says fully charged but won't work YzkyZDkwM2EwNDY1NTZlNWQyZjAxOTQ4YWMzMzE3MmNmYjVjOWUxMTBlMzc0 I used 16 gauge wire without issue. Lets keep things simple first. Ryobi Li-ion battery has an overcharge protection circuit that controls the current flow. A good way to find out if the battery is not charging is to check each of the exterior components. 9 Easy Fixes, How To Fix Owlet Sock Not Charging? It happens because the lithium-ion cells discharge below their minimum threshold. How Long Do Cordless Electric Snow Blowers Last? Buy for Ryobi 40v Battery Charger, Hiesuan OP401 Dual Channel Ports Ryobi Lithium Battery Charger 3 Hours Fast Fully Charge 6.0Ah li-ion Battery OP4060A OP4050 OP4040 OP4030 OP4026 OP40201: Battery Chargers - Amazon.com FREE DELIVERY possible on eligible purchases Plug a different device into the outlet and make sure it's working. If your Ryobi battery has gone into sleep mode, you need to jump the charging circuit with another battery. A rechargeable Ryobi battery will last 2-3 years, depending on your charging habits. 18V ONE+ 9.0Ah High Capacity Battery - RYOBI Tools The battery pack cover is held in place with small Phillips head screws on the bottom of the unit. Check each cell's voltage using a voltmeter. A Ryobi 18v battery will typically stop charging if it's too hot or too cold, if one (or more) of the individual battery cells has an internal short, or if the overall voltage of all the cells has fallen below the minimum charge threshold of the charger. Follow the solutions mentioned below to fix the issues-. MacBook Air M1 and MacBook Pro M1 (2020) are beasts regarding power efficiency, Read More How To Charge Macbook Pro Without Charger?Continue, Mophie is a popular MFI-certified wireless charging brand that supports MagSafe wireless charging. I tried doing this process without the unlabeled wire but it wont work unless touching the negative terminal.Touch the other end of the wires to the appropriate terminals and count for 15-30 seconds. Ryobi battery is made of premium material and incorporates the best technologies available in the market. Android is far ahead in this race than iPhone. Now that you know whats in an 18v battery, lets get into the meat and potatoes of the article. If any cells have less than 3 volts, replace them to fix the charging problem. One of these methods involves the disassembly of the battery, and basically bypassing the control board inside the battery case. I know my smart charger for my 12-volt car batteries requires a minimum voltage of 9.5 when charging any 12-volt battery. MzhmYjhlNTRjYTBjZmZlNmE2OTQzNTljNjE5NTIxNDU2ODM2MTQxZDQ5ZDVj My name is Terry, I have a passion for auto, truck, RV, marine, golf cart, and household batteries for all kinds of appliances. Required tools and items required to fix the issue are already mentioned, so the next phase is to fix the battery with practical steps. In this video I have a battery that does. Make sure your batteries are regularly checked. Ryobis battery is made up of several small batteries interconnected in series. Hi folks, I have a Ryobi 40v string trimmer thats having a battery problem. This debate can be pretty long as there are countless reasons behind choosing a battery over other batteries available in the market. Even though there is little chance of a Lithium-Ion battery exploding, they do have a finite lifespan and will lose power faster and take longer to charge as time goes by. charger leaked a large amount of oil and then stopped charging. ZWNlNDg0ZmI2YTM0OWRlOGIyOGQ5M2Y4ZmRjOGJiNTg2OWQ3NWU0ZWU2YzE4 If the cells are relatively even, then we can continue. , Read More Why Does Your Electric Leaf Blower Keep Shutting Off?Continue, Electric leaf blowers can be a convenient tool for clearing your yard, gutters, and other dirty jobs around your property. 20K views 2 years ago This is a 18volt Ryobi battery. If you have any suggestions or have come across this before and found a way to fix this issue please mention in the comment section. This atomic buildup is what causes battery life to start dropping. Ryobi is a popular Japanese brand that manufactures cordless power tools and home cleaning devices. Put your Ryobi battery pack back on the charger to let all the cells charge fully and equally. When it comes to power and performance, the Ryobi battery is second to none. #Ryobi #Ryobibattery #Homedepot #cutgrass #lawncare #thewallacelife #amazon *GET A BETTER PRICE IF YOU BUY FROM OUR AMAZON LINKS*-----. They contain a beeping system that alerts you to any threats you may be facing. Verify that the batterys charging port, the chargers contact points, and the cables and wires are in working order. In the next step you will need to connect two wires to the cells, but you must make sure that the wires are connected to the correct terminals (positive to positive and negative to negative). If your reading on the screen is positive, then you know that your red lead is touching positive and your black lead is touching negative. When the charge is complete, remove the battery from the charger and remove its cover. The biggest distinction between the two is their size. About 20 supporters - many district . Do You Save Money With Electric, Read More Are Electric Mowers Cheaper Than Gas?Continue, You look outside and notice that your grass has started getting a little too high and you realize that it has been a while since you last cut your lawn. I am often found in my shed refurbishing batteries for friends and family or repairing anything with moving parts that run off a battery. I would only hold the wires on the terminals for 15-30 second intervals at most and then check the reading with a multimeter to see where youre at. Check each of these areas if any are damaged, as they may prevent the battery from receiving a charge. NjFkNjA2NmQ2YjBlOTNiOWE5MzM2NmE0MjU4Zjc5YzRjMjM1YzM3ZjRkNDU1 The alarming stat depicts that many homeowners are at risk. Doesn't seem to have any charge in it.. RYOBI BATTERY 18V WONT HOLD CHARGE | eBay Ryobi is one of the few power tool manufacturers to integrate their own branded batteries in their tools. We did the math and broke down the cost of owning an electric lawn mower vs a gas lawn mower over the course of their lifetime. In addition, you should remember that repeatedly exposing the battery to extreme temperatures can cause permanent damage. The positive side on mine was not marked, but the negative side was labeled GND for ground. As all of these methods fail to fix the Ryobi battery that wont charge, you may have to seek expert help or buy new replacement batteries for the Ryobi power tools. ZDc2ZjZhNzc4Mzk2ZDAyIn0= Home Battery Bank is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. Now that weve removed the two basic reasons from the equation, were left with two common scenarios with these lithium batteries. Is Charging Your Phone All Day Really That Bad? Ideally, you should top your battery up when it is about 50% charged and then not let it charge to 100% but remove it from the charger when it is at about 90%. If your reading is a negative number, then you know that you have it reversed.GND indicates ground, or the negative terminal of the battery. Having just one malfunction can render the whole battery pack useless. Batteries will lose power as the charge reduces. NDc2Zjk2MDAwM2JiYmQ5YzAwMTY4N2Y2N2JlNDFiODk1NjYwZDQzNDQ5NTJk As batteries are discharged, the materials inside them crystallize, reducing the amount of material available to take a charge. NzVlZjhkMGY3NzU3YmUwMTI5MGEyNGY4NGQ3MTQ5N2UwMjE1NDgyNDY2NjM3 Purchase as many replacement sub-C batteries as you need, making sure the new batteries include a soldering tab. YThlMmU4NWRhYWQ0NDVhYTc2MDA0NDQyMTE2MzJmNGM5OTcyYmEyNzJkY2Qy Strip off 1/4 from each of the ends and crimp a medium side eyelet on one end of each wire. This thermistor needs to sense that the battery is in the proper temperature range in order to charge. Why doesn't my RYOBI Pole Pruner battery last? | TTi Ryobi The crystals limit the amount of charge the battery will take, essentially "remembering" its previous charge level and preventing the battery from charging fully. Charge the battery after about a minute to see if the battery has been reactivated. Check the battery is seated correctly in the tool. Each cell will have a reading of about 4.1+ when it is relatively fresh off a charge for a total of 20.5v+. In the case of the dead battery, there is no benefit to continuing with the process, as replacing the dead batteries may be the only viable solution. This guide will show you how to disassemble the battery pack and check the cell balance and rebalance the cells if necessary. Some RYOBI units, the zero-turn, have batteries that are able to be charged while in the mower using a charging port. Line up the cells on your work surface. These are lithium-ion batteries that you get on the Ryobi 48V lawn mower, and they need to be charged . To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. The days of electric lawn mowers being second class citizens in the mowing industry are over! Why Ryobi battery is the best? I hope this guide helped in fixing the charging problem of your Ryobi 18V/40V battery pack. Scientists have adjusted the formula of the chemical makeup of lithium-ion batteries to try to make them more efficient, charge faster, and last longer. Why is Mophie Wireless Charging Not Working? This happens when you pretty much run the battery empty when using the tool and fail to recharge it afterward and leave the battery in the tool. Try this a few times. Do not knock, acupuncture, trample, refit, or expose to the battery, and do not place the battery under microwave, high voltage, etc.we provide ni cd aa 600mah 1.2 v and ryobi 9.6v battery, you can konw it. Extreme heat and cold are dangerous for the lifetime of the Ryobi batteries. Why Are Ryobi Batteries So Bad? - Nimvo This battery features advanced electronics to allow you to maximize tool performance with added capacity to all 18V ONE+ tools. From there, you keep the wires sticking out of the charger separate, plug it in, but you hold the negative and the unlabeled one in one hand, and the positive in the other. Perhaps the most common reason that your Ryobi 40v battery will not charge is that the battery has over-charged. How to Replace the ADT Motion Sensor Battery. Updated. One of those issues is when you go to charge one of the batteries and find that the charger will no longer recognize it. You can test the individual cells with a multimeter. You will imagine yourself getting closer and closer to ending up with some office repetition injury with no payout at the end. When this happens, the battery enters a state known as sleep mode. Some Android smartphones even tested, Read More Why is My Phone Heating When Charging? You need to check the Ryobi battery for the possible issue after the red light. Before using the Ryobi power tool in winter, try to warm up the batteries with small intervals, and it will initiate the charges within the battery to start performing their charge carrier operations. My previous job in facilities maintenance gave me plenty of access to Ryobi bad batteries. Insert your battery into the appropriate power tool. RYOBI Tools Insert your Ryobi charger into a different power outlet to check whether your battery is charging. YjBkYjc2MjMyYTQ5NjU4MTkyMTc4NjZhNGU0YzYxM2QzZGRiOWNlOWZhNjdh If you still see the red blinking light, repeating the given methods may solve the issue. Model: #P194. YzkxMGMyYjFiMjE1NzMxNzI0NjVmMWQyMDE5MmEyM2NhYmM0ZWM0NmY2MzA5 How long do battery-operated snow blowers last? The temperature must not be more than 90 F. But you may have to buy more than one battery for different tools. In this video, I show you an easy fix for a Ryobi One Plus battery that is not charging. How to Fix a Ryobi Battery that wont Charge: DIY Project! You will have to sneak your fingers inside the crack and grip onto the battery at the locations that you see in the picture below to keep the battery steady as you try to pull the terminals out of the tube that sticks into the tool so that you dont break anything since the terminals which are mounted to the control board have a friction fit inside the tower that youre trying to remove. What Are The Alternatives to 96R Battery? Identify the positive and negative terminals of the battery connection. I also dont like this method because if you dont know why your battery is bad, then you could be wasting 30-60 minutes of your time. The healthy battery will deliver enough kick to the Ryobi battery, and hopefully, the battery will start charging again. Once you have successfully detected that the Ryobi battery wont charge without applying DIY hacks, the next process to make it work. To increase the longevity of your lithium-ion battery, it is best to do more shallow discharges and recharges rather than full ones less often because it places less stress on the battery. Do remove your battery once it is fully charged. After the DIY process, you will be able to recharge the batteries even after experiencing the sleep phase. What Causing Your Ryobi Battery Won't Charge? YjVjYzA2YWViMWE2ZjNmZTdhZjZkMTk0MTI1YjZlZmIxMTFjNGUyMzk0NDA1 MjFiMGY4OWU1NmE1NjkwNzFkYTc5ZmE5ZWM1YzAyZTRlNWI4ZWNkYzJlZmEy The best electric lawn mowers might even make you forget that lawn mowing, Read More 12 Reasons Why Electric Mowers Are So EfficientContinue, Electric leaf blowers can be a convenient tool for clearing your yard, gutters, and other dirty jobs around your property. Lift straight up to remove the top cover. So what is the verdict, to leave your battery on the charger, or not?Table of ContentsCan You Leave A Ryobi Battery On A Charger?var cid='9749102202';var pid='ca-pub-8248197285954440';var slotId='div-gpt-ad-electricmowerreport_com-medrectangle-3-0';var ffid=1;var alS=1021%1000;var container=document.getElementById(slotId);var ins=document.createElement('ins');ins.id=slotId+'-asloaded';ins.className='adsbygoogle ezasloaded';ins.dataset.adClient=pid;ins.dataset.adChannel=cid;ins.style.display='block';ins.style.minWidth=container.attributes.ezaw.value+'px';ins.style.width='100%';ins.style.height=container.attributes.ezah.value+'px';container.style.maxHeight=container.style.minHeight+'px';container.style.maxWidth=container.style.minWidth+'px';container.appendChild(ins);(adsbygoogle=window.adsbygoogle||[]).push({});window.ezoSTPixelAdd(slotId,'stat_source_id',44);window.ezoSTPixelAdd(slotId,'adsensetype',1);var lo=new MutationObserver(window.ezaslEvent);lo.observe(document.getElementById(slotId+'-asloaded'),{attributes:true});var cid='9749102202';var pid='ca-pub-8248197285954440';var slotId='div-gpt-ad-electricmowerreport_com-medrectangle-3-0_1';var ffid=1;var alS=1021%1000;var container=document.getElementById(slotId);var ins=document.createElement('ins');ins.id=slotId+'-asloaded';ins.className='adsbygoogle ezasloaded';ins.dataset.adClient=pid;ins.dataset.adChannel=cid;ins.style.display='block';ins.style.minWidth=container.attributes.ezaw.value+'px';ins.style.width='100%';ins.style.height=container.attributes.ezah.value+'px';container.style.maxHeight=container.style.minHeight+'px';container.style.maxWidth=container.style.minWidth+'px';container.appendChild(ins);(adsbygoogle=window.adsbygoogle||[]).push({});window.ezoSTPixelAdd(slotId,'stat_source_id',44);window.ezoSTPixelAdd(slotId,'adsensetype',1);var lo=new MutationObserver(window.ezaslEvent);lo.observe(document.getElementById(slotId+'-asloaded'),{attributes:true});.medrectangle-3-multi-139{border:none!important;display:block!important;float:none!important;line-height:0;margin-bottom:15px!important;margin-left:auto!important;margin-right:auto!important;margin-top:15px!important;max-width:100%!important;min-height:250px;min-width:250px;padding:0;text-align:center!important}Why Can't A Ryobi Battery Be Left on the Charger?How Lithium-Ion Batteries WorkHow Charging a Lithium-Ion Battery Worksif(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'electricmowerreport_com-medrectangle-4','ezslot_4',140,'0','0'])};__ez_fad_position('div-gpt-ad-electricmowerreport_com-medrectangle-4-0');Dos and Don'ts of Ryobi Battery RechargingDODON'TConclusion. The latter situation can be reversed by bypassing the battery control module if the battery is out of warranty. Ryobi batteries are among the best on the market. So, test each cell with a multimeter and ensure they have more than 3 volts of juice left. The red light starts blinking when the system detects an abnormal battery. N2ZkYTkyZjA3YzU4N2JkNzllZGZkNjMwNTYyMjJkMzc0Njc1MTU1ZmRiMTA4 Do use your battery regularly.