My 4Ah battery three contact post has a badly corroded positive (largest) contact that has gotten hot and has partially melted the plastic so badly that the whole post needs replacement. All opinions are our own we pride ourselves on keeping our articles fair and balanced. Battery shows levels of charging as I would expect. Anyway, could you please give me some insight on what you think it might be? run time is maybe 10 minutes then I can re charge. Again 15 seconds of charge. To replace a battery that is still under warranty, please contact our customer service at 877-655-5250. Then try charging the battery again – this may be enough to kick the battery back into life. Replacement batteries are certainly not cheap, and most of us will want to avoid the need to buy a new battery if at all possible. If you are interested, you can read more technical details about “priming” batteries here: http://batteryuniversity.com/learn/article/how_to_prime_batteries. Thanks, again! When I place it in the charger there are still 3 solid green lights with the 4th flashing green which goes continuous green eventually, so you have 4 solid green lights, then it goes through the sequence again as described above. Initially, it had 40 volts across the terminals, and would not power a trimmer, so I assumed the trimmer was bad and replaced it. Hi, Aaron! Compatible with all Ryobi 40 Volt lithium-ion tools RY40200 RY40403 RY40204 RY40530 RY40460 RY40180 RY40250 and Ryobi 40 volt lithium battery chargers OP403A OP401A OP406A P137A OP404A ZROP401A OP400A RY40440. Another issue with all the mowers is that damn button that senses that the push bar is in place. After I put the battery in, it was still flashing red lihgt and not charging. In your example, the 4.1V cell would lose about 1Wh of energy while discharging to 3.9V, based on what I’ve read on the internet. I currently have a Ryobi Trimmer Model P117 18 volt which is approximately 6 years old. Is the Ryobi One + String trimmer 18 volt 13″ String Trimmer / Edger have the same battery or has design changed so it is easier to remove from trimmer? Do you think I got a defective charger or a defective battery? Or does it have to be discarded at this point? This points to the tool itself is the problem. Thanks! Bought new batteries, same result. I learned to unplug the charger on hot days when I was using the battery after that the tool ran fine. If I pull battery out and put back in it runs for less than a minute again and repeat. 3. Yes David we have a OP40261 2.6Ah battery doing exactly what you say. It might be the tool. Seems like a memory issue. I tried option 3 and it worked. I’m not sure of the age. I had the same issue as Larry W. Connections are clean. I am having trouble removing the battery from my Ryobi weed cutter. I press and hold the “?” Button on my battery, all four lights flash twice, pause, then flash twice again. Im not sure why, but it would seem that the battery is faulty. Is there any sign of life from the trimmer at all? Hi Josh, How old is it? Charger or battery issue? Tool Rental. My Ryobi battery is ok. Because I had a replacement and tried with that also. Assuming your mower is like mine, check the bolts that hold the handle to the mower. Ok, have a ryobi hedge trimmer, 40v. My Ryobi trimmer/edger stopped working. So I have some good news for you; it is possible to fix most Ryobi 40V battery problems yourself. Since a different charger produces the same results. There are two ways to try and wake up a sleeping battery. Runs mower for 15 seconds. When I check the battery gauge, it shows it’s full and flashes. Maybe your blower contacts are not connecting with the battery. Use a DC power supply set at the same voltage as the battery and connect the positive output to the positive battery terminal and the negative output to the negative battery terminal. Voltage measured between +ve and T1 :32.6. I have a Royobi 40402 40V blower. Well each time you insert the battery into the charger, it gives it a small amount of charge before detecting the battery as sleeping. 18V Battery & Charger for Ryobi Cordless String Trimmer Edger Weed Eater Wacker . One of my Ryobi 40v lawnmower batteries only works until it is half discharged. I had discovered method 3 myself. Have you tried the suggestions in the article? If you press the charge indicator on the battery (? Whats the model? If it is under warranty still then there should be no problem – you can find more details here: https://www.ryobitools.com/outdoor/support/batteries, Hello Aaron. 3 good, 2 with completely dead cells, and one with good cells and a bad board. Have you tried the methods in the article? I havent currently got any of the devices here to check how they work at the moment. Put battery in mower and will operate for 10-15 minutes. I have a working battery and charger again. The best way to test which is the faulty part, is to take your battery down to your local store that sells Ryobi 40V tools and try it on one of their chargers. Its probably a dead battery. When I press the button on the battery all green lights work but go out when button released My OP400 charger repeatedly stops charging after about 15 minutes and all lights go dark. I used it one time in my trimmer and charged it. Works with all RYOBI 40-Volt tools and chargers ; 3X more runtime than the RYOBI 40V 2.0 Ah Compact Battery; Fade-free lithium-ion power; On-board fuel gauge displays remaining runtime; … I picked it up second hand. I picked up one of these units. option 3 worked. If the Handel slides off the button the mower cuts out. Is there any reason that you can’t replace the battery? I would doubt if it was used more than once or twice. I have a 40 v mower with 2 batteries about 4 yrs. Best regards. New 40v battery already defective? Thanks. I would highly recommend looking for new batteries (non-genuine are fine.) Free shipping. Not sure if the cold has anything to do with it? My 40 V Ryobi lithium ion battery is fully charged. Energup Replacement 6.0Ah OP4050A 40V Lithium Ryobi Battery for Ryobi 40Volt Battery Cordless Tools OP4015 OP4026 OP40201 OP40261 OP4030 … That is usually a sign that the battery has had it. I bought a new battery. Is this a bad charger and is there a fix? This is the second Ryobi battery recall in 2013. Did this for about 30 minutes while cutting the lawn several times. Thanks for letting me know that our fixes worked for you! How old are the batteries? If you need your replacement Ryobi 40V battery parts in a hurry, then you will want to head straight down to the closest supplier and buy it locally. It is fairly new (the other battery works fine). Then I re-plugged it in and the SOLID RED light came on and stayed. The best way to test which is the faulty part, is to take your battery down to your local store that sells Ryobi 40V tools and try it on one of their chargers. Hi Aaron, Be sure to tell me your model numbers of your batteries/chargers etc so I can give the most relevant advice. Hi Tom, I am not sure sorry. I purchased the generic battery and the mower will run fine for about 30 seconds and then it shuts off. My battery has worked great for about 5 years—this year however, I noticed that neither the charger or battery are lighting up when I attach the battery to the charger. battery charger green light stays on with battery in dock. So I have a battery that I am trying to charge from being completely dead, the charging dock is blinking red for testing, and after awhile the battery itself is now blinking on the screen that shows battery power. What’s more, our 40V lithium-ion battery fits every charger and powers every RYOBI 40V tool. Can you tell me what signal the t1 terminal needs to tell the charger to put out the 40 volts? Praise the Lord! Well each time you insert the battery into the charger, it gives it a small amount of charge before detecting the battery as sleeping. I’ve been given a Ryobi trimmer with a #OP4026 battery. Problem solved. They still hold a charge, but they are now incredibly hard to get into and out of any of my tools or chargers. If you want to let me know the model number of your tools/battery I can look up a replacement for you. Hence, I tried your Option 3, pushing the battery into the charger for five green flashes, out, five green flashes, out, and so on. Any suggestions? It didn’t even flash green, just went to solid green right away with no indication on the end of the battery that it’s charged and when put into the weed eater…didn’t run. Did you ever get it fixed? Is there no other way to reserrect the battery? I’m having the same problem. I put the battery on and off the charge about 20 times. I did leave it in the cold garage all winter (-30*C). Remove battery, check lights. RYOBI OP4020A 40V Lithium-Ion 2.0 Ah Battery. Not sure why it would display 100% charge, and have 40 volts on the terminals, but still not power anything. I have it plugged in to (re)charge, the “charging” light is pulsing. The trimmer is not defective as I tried a spare battery and the trimmer works. I pressed the button on the battery to see if It was fully charged and nothing lit up. Compare. Yes solid green indicates that the charger believes the battery to be fully charged. There are ways to attempt to fix this problem; take a look at the possible fixes below. Hi Aaron, my 40V battery was working fine and then i dropped it about two feet on the pavement. What should I do? I’d used the refrigerator option a couple of times in the past to get the temperature in range. 40v fuel gage says the battery is full. Generators & Power. You were right. since there are no flashing lights, I didn’t think any of the solutions you offered would apply. The problem is that It cuts off when I first start the thing. If it is exceptionally cold where you usually store/charge your batteries, bring them inside and let them warm up to room temperature and then try charging them again. As you suspected my OP4026 40v lithium-ion battery is faulty (around 4 year old), I replace it with a new fully charged 40V4.0AH but the trimmer/edger is still not working. Hi! Does it happen only in hotter weather? They all flash at the same time four times. Read honest and unbiased product reviews from our users. Still doesn’t make sense logically – but am going with their recommendation to replace battery. Does that sound like the battery or the charger? I have a issue with one of my 40 volt Ryobi Batteries. Sounds like a faulty charger to me. When I plug a battery into the charger, the charger flashes green 6 times, then red, green, red, then the light goes out. I attach battery and it blinks red three times, then blinks green three times, then solid red, then no lights whatsoever. Hi Christine, the manual should tell you how to get it out. It happened to my sister’s weed eater. Put it back on the charger to get back to full, start trimming again and it does the same thing. These are common symptoms. For Ryobi OP40261 40V 6.0Ah Lithium Battery/Charger OP401 40 Volt OP4040 OP40601. I tried all options but none worked. charger.) Do I need to do this for a longer period of time? Why does this work? Both chargers have the same “manifestations.” This all started after using my leaf blower with all three batteries, and trying to recharge. Battery university recommends not boosting batteries that have been in sleep mode for a week or longer. When I use a voltmeter the charged battery reads approx 38 volts. While you can replace the cells in the batteries, the amount of time it takes you, the cost of the cells and not to mention the possible safety implications make this barely worth it. battery reads 18v dc across terminals. I want to replace them. The terminals may be covered on your battery – but I would not recommend that fix unless you have some knowledge in electronics and batteries. It just stopped working this week when i was trimming my grass with the trimmer. what is a good indicator to recycle this current battery and purchase a replacement? I tried to put it in a tool and nothing happens. Thanks for the article. The battery doesn’t charge nor does it work in the trimmer. after trying fix option 3 my charger is flashing red and green without the battery. This morning I used it until it quit and tried it again and it quit again so I put it in the charger and got no lights. when i went to charge it, my charger light is green but the cells on the battery do not light up. Some are great and work well, others are not worth the time or the money. I’ve just build up my knowledge over the years. Batteries are quite heavy for their size and they also contain breakable parts (circuit boards, electronic connections, plastic etc). It shows as fully charged but when it’s used in only runs the tools for a few minutes and then quits. There is a red button between the Handel and base of Handel on right side. You can see a video guide on how to do this here. Is there a way on the charger to bypass the sleep check function? My guess is that there is something wrong with the tool. I have two chargers and three batteries (multiple Ryobi 40 v. Same here and it’s a relatively new battery. Blowers. I have this exact same problem. It certainly can! So keep this in mind when carrying out the following recommendations. Thought I had a bad battery #3 did the trick – Thank you!! I had a similar issue. Hey this is Sam Peters. This question was also asked in our facebook group, but I will post the answer here as well for others to benefit: Hi Matthew, it sounds to me like a faulty battery. I think it is easy to modify inside charger (a resistance value or something else), to reduce output power. Thanks for any suggestions, ADVTRONICS 40V 4.0Ah OP4040 Lithium-Ion Battery Compatible with Ryobi 40 Volt OP4050A OP4015 OP4026 OP40201 OP40261 OP4030 OP40301 OP4040 OP40401 OP4050 OP40501 OP40601 Ryobi 40 Volt Battery Lasica Replacement for Ryobi 40V Lithium Battery 6.0 Ah OP4040 OP4050A OP40601, Compatible with Ryobi 40-Volt Collection Cordless Power Tools Li-ion Battery and Ryobi 40V Lithium Battery … View Rentals. The mower shuts off when turning to the left, as the push bar moves away from the button. Has the battery lost capacity? YOUR WEBSITE JUST SAVED MY BUTT!!! Yes, they are! No problem! I have similar problems with a few 40v batteries I own. Ryobi claims that one of these batteries can last longer than 6,000 AA batteries. As an Amazon Associate I earn from qualifying purchases. Suggestions. I have 2 40 volt ryobi batteries with a similar problem. First, the battery indicator on the battery does not work. Lights showing full charge, 19 volts and not working. Even if it still doesn’t work, these batteries are worth a few bucks for repair on eBay. Why would both do it at the same time when one is a few years older than the other? ARe the blade moving freely? There are two ways to try and wake up a sleeping battery. It’s showing 19 volts more or less with a volt meter. Removing and then replacing the battery does not cause the charger to wake up. The problem here with Ryobi 40V chargers, is that they don’t incorporate a “boost” feature that would allow a a battery that has entered sleep mode to be woken up again. When I took the battery apart and measured on the board from the CL1- soldered connection to the Bat+ terminal connection on the board, I measure 41volts. It’s what I’m beginning to think. How can I get the bottom part of the battery to work? Well don’t panic yet because it isn’t always a sign that your battery needs replacing. Hi, We solved this by having one person depress the button and pull, while another person pushes the battery out. I hooked a multimeter to the battery leads and the voltage slowly drops as the battery slowly drains itself. Unfortunately, if none of these solutions solve your Ryobi 40V battery problems then it is likely you have one of two problems: Either your battery is faulty, or your charger is faulty. Seems like it is charged but its not getting to the battery out put terminal. I left it in for a couple hours and still nothing. Matter of fact, the OP40501 is 5.0aH, so it’s 20% better than the original. Patience is required here – so read these instructions carefully and find somewhere comfortable to sit! Did you try the any of the methods listed in the article? Bad charger? https://www.essentialhomeandgarden.com/ryobi-40v-battery-problems Click here to see Amazon’s selection of Ryobi 40V Batteries and Chargers. What this means is the battery has been discharged to such a low level that the charger has trouble detecting if the battery is healthy or not and decides to not risk charging it – showing the dreaded flashing red and green lights. It’s hard. This machine is only 1 year old. that these cost more than the appliance to replace. It COULD be a faulty charger? But that does sound suspiciously like it could be faulty circuitry on the batter control board. Any advice? If I connect the ground it goes to defective even though the battery has 39 volts. Thanks for letting me know. This method should only be used if you don’t have a spare battery or power supply as per option 1. To me it seems like the battery might be going into a protection mode for some reason? 4.6 out of 5 stars 523. I also experienced a battery failure, under warranty, and Ryobi shipped a replacement battery and charger. I have, however, a different problem. Thank you for your help comments. Lasica Replacement for Ryobi 40V Lithium Battery 6.0 Ah OP4040 OP4050A OP40601, Compatible with Ryobi 40-Volt Collection Cordless Power Tools Li-ion Battery and Ryobi 40V Lithium Battery Charger Biswaye 6.0Ah Replacement for Ryobi 40V Lithium Battery OP4050A OP4026 for Ryobi 40-Volt Cordless Power Tools Battery OP40601 OP4026A OP40401 OP4030 OP4050 OP4050A OP4015 OP40261 … I then tried to put it back into the charger and it goes straight to solid green. I recently purchased a new Ryobi OP4015 40v battery. Would they work in my mower? Ive got red/green on two 36V Ryobi batteries. As far as I can remember, the last time I used it (about 2 weeks ago), it ended up with 2 bars of power left. As batteries are discharged, the materials inside them crystallize, reducing the amount of material available to take a charge. Are the terminals dirty? BTW this problem was not present last season it started this year. Let’s take a look at the most common Ryobi 40V battery problems and how to fix them. Ok then, 3 years old is where a Li-Ion battery generally starts to die. Any ideas? 4.6 out of 5 stars 104. I used option #3 to fix my battery’s sleep mode. I put in on the trimmer and nothing happens at all. Sounds like you could have a faulty charger! In theory the batteries should be fine to sit in the charger.
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