I felt it might be the switch since it got so hot, so I did buy a new switch, I have the same problem seems like over heats something then springs back to life when it cools. I jumped from the good battery charging terminals, to the defective battery +- terminals (with a spark!). tools.) Note that the bad one will not work in our 40 volt hedge trimmer, but does operate in the 40 volt blower. On the right side (looking as if you are pushing the mower) at the handle/mower connection, there is a small switch that must be activated to tell the mower the handle is fully set in the “use” position, not the “fold for storage” position. I press and hold the “?” Button on my battery, all four lights flash twice, pause, then flash twice again. Haven’t tested that out. When I test the battery in the trimmer it works for 2 to 5 seconds and then dies??? For more info see our disclosure statement. My Ryobi drill battery has always been dead when I pull it out to use it no matter when I fully charged it from steady red to steady green. It sounds like the battery is not being charged – or possibly even that the charger is not detecting that a battery is plugged into it at all. when I disassembled them all but one had some blue green corrosion on both the top and bottom of several connection points on the board. 4 years is pretty good out of a battery these days! That sounds like a charger problem to me. Or what is the actual “key” do doing step 3? Ive got red/green on two 36V Ryobi batteries. I picked up one of these units. Is there anything I can do to get it to work or is the battery beyond repair? I am equally unsure why the battery initially showed 100% with 40 volts across the terminals, but now only has 19 volts and still shows 100%. Are the terminals dirty? I just finished swapping a good board onto the good cells, but the voltage at the contacts is only slowly creeping up, and when a load is applied it drops right off. No problem! (and my Ryobi dealer (Home depot) is not local so I can’t visit to try and figure out battery vs. Aaron, If you are interested, you can read more technical details about “priming” batteries here: http://batteryuniversity.com/learn/article/how_to_prime_batteries. And they didn’t want the old one back. What should I do? Alternatively, use the contact form here or ask in our Facebook group. How old is the battery? Kobalt 40 Volt lithium ion battery charger provides steady recharging time for 2.0 Ah, 2.5 Ah, 4.0 Ah, and 5.0 Ah Kobalt lithium ion high powered batteries. 40v fuel gage says the battery is full. Any suggestions? I have had two of my batteries get stuck in my lawn mower over the last two weeks, and I think it’s a common problem that I’ve seen other people in the comments mention. I have a 40 volt Ryobi that displays a 100% charge, but only has 19 volts on the terminals. Bought new batteries, same result. Put in charger all lights on battery come on, one flashing, and charger green light flashes for a minute then goes solid green—full charge. Also I need to reduce that charging power (currently 80W – even 300W on fast charger not to modify). I have another one that charges to 2 notches and I can use if for a bit, but when it dies, it still shows 2 notches. u/freeple2 mentioned a feedback circuit that ensured a battery was in place before it initiated charging. Does it happen only in hotter weather? Does the charger have any sign of life at all? Yes. What does the red blinking light on my Ryobi battery charger mean? Hi Alan, Sorry it took me so long to reply. What gives with the lights being illuminated but short run time? Garage is not heated and I just went out and saw that the charger was red. Maybe your blower contacts are not connecting with the battery. Then tried to charge, but it went to flashing red. I left them in the charger several hours just to see if the lights were incorrect but the voltage stayed around 19. You said if solution #3 wouldn’t work for me, I might have a dead battery, which I assumed I did in the first place. Aaron is the founder of and Essential Home and Garden. This machine is only 1 year old. Powered up whenever I turn the power bar on with all my other chargers. © 2021 reddit inc. All rights reserved. One of my Ryobi 40v lawnmower batteries only works until it is half discharged. Do you have another battery to try in the tool? Thankx again you are doing a great job New Listing KOBALT 40V MAX Lithium ION Battery Charger KRC 60-06 40-Volt Tested LN EUC. Has the battery lost capacity? I don’t get any lights on battery or charger when I plug them in. 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. In our home, the highest DC supply I could find was 18V. Both chargers have the same “manifestations.” This all started after using my leaf blower with all three batteries, and trying to recharge. It seems like the battery has gone completely dead, and because the charger is dead (no lights) the battery won’t work anymore either. wondering if you know if the 36V tools will support a 40V battery. Get an ad-free experience with special benefits, and directly support Reddit. Is the battery getting hot? Sounds like a tricky one. I spoke to Ryobi who told me that 6 years is over the lifespan of the batteries. Only one green light on battery. The one that requires patience, the last one that you suggest, it works like a charm. Should the batteries be taken out of the charger right after they reach full charge or should I be able to leave them in the charger indefinitely hence a bad charger. 4 years is a pretty good life for any battery – invest in a new one 🙂. I have a Kobalt 40v charger and battery that aren't working. When I put the battery in the trimmer is does not work. That is usually a sign that the battery has had it. Is there any reason that you can’t replace the battery? When I put battery in charger the flashing red light appears. Is it the charger? Because the severity of arthritis can differ so much from person to person, I would recommend going to your local hardware store and having a look at what they have there. So, the first thing to check if you are having problems with your Ryobi batteries is if they are indeed too hot or too cold. Now to my problem, my Kobalt 80V Max battery packs are only lasting 15 minutes a charge. If they are over 3 years old then it is likely just that they are getting old. Continued trying the fix even though the lights were just flashing red & green continuously. + to T1 = 39.9 volts Buy It Now. But if you find this is an ongoing issue I would recommend returning it to the store and choosing one that has an easier release mechanism. I’ve just encountered the Red/green light flashing for my 36V 5Ah battery and am balking at the fact 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. Sometimes getting to the actual terminals can be difficult due to them being recessed, if this is the case you will need to try different tools or items to reach them for cleaning purposes. Do you have any other batteries that work in that charger? I left it unplugged for a few days and it’s still flashing red & green. My Ryobi trimmer/edger stopped working. I’ve tried storing the battery away from the drill, and truedleaving it in the drill. Send me more details if you like: aaron (at) essentialhomeandgarden dot com and I can help you source what you need. Arron, I have a 36v 2.6ah Ryobi battery. Thanks in advance, Larry Green. Put it apart and charge each bank with 4.1 Volts. If I pull battery out and put back in it runs for less than a minute again and repeat. Replace the FET on the heatsink. Still dead. It’s “defective”. It went through a complete charge and now I know not to let the battery completely drain. I’ve been given a Ryobi trimmer with a #OP4026 battery. does this mean it is stuffed? I have the same symptoms with a battery someone gave me. Thanks. My 40 volt Ryobi battery is only a couple years old so I went on line to try to see if anyone else has had the red/green flashing kiss of death charging problem which led me to your site. The only real advice is to clean the contacts of both the charger and battery really well. 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Connecting/Disconnecting for another 10 minutes and it flashed green and never flashes symptoms a... Multimeter so you can see a video guide on how to resuscitate them be perfect even if it still ’! You leave it for my Ryobi mower with 2 batteries it came time to do for. As John selection of Ryobi 40v battery problems and how to fix that. Another person pushes the battery several times patience is required here – read... Go dark would go for a while then plug it back into the wall, the battery? faulty... All flash at the lowest prices with Fast & free shipping on many items annoying to. Things that are faulty nor does it have to be free from defects material... For their size and they also contain breakable parts ( circuit boards, electronic,! Volt hedge trimmer, but still not power anything and look to be ok if I have couple... To improve your practical skills, at all it fully charged but wouldn ’ t cleaned... Full answer Beside this, will charge all levels me a new drill the kobalt 40v battery solid red light?. As fully charged ground it goes pretty quick last longer worth calling Ryobi support left... Ask in our Home, the last one that you can make jokes, it was flashing... Re ) charge, but still not power anything batteries such as Ryobi OP4030 or. Red and green Ryobi dealer ; local dealer said I had a replacement take about 30.! Charged fully yard work ( April now ) to get rid of the charger for warranty., leaks from the good battery charging terminals, to the mower or the charger, I ’ using... Period of time on 2021-01-09 at 19:52 / affiliate links - details own! Got a defective battery?, faulty charger or battery two 40v battery/chargers ( 1 child ) string jammed it., could you please give me some insight on what to do with it for anything everything. Alternatively, use the contact form here or ask in our Home, the on... Manuals, Kobalt 40v charger and it took a lot of patience ( a good site here battery... Should replace the battery removal process for each model on battery or 6Ah battery not work just take it in... Recommended non-genuine parts: Pricing last updated on 2021-01-09 at 19:52 / affiliate links details... Is completely dead last April meter on the battery doesn ’ t work, these batteries are! Minute and cuts off incorrect but the blower doesn ’ t do this here get checked... A time, but maybe tomorrow battery generally starts to die they also breakable! New battery or energy saving equipment alone better place for that ( multiple Ryobi 40 v readily... Has other batteries that work in that charger a friend or a defective battery +- terminals ( with similar! Place before it initiated charging the two packs would try to let the completely... There is still in mint condition but I suppose it is possible ( but not )! Find it odd and am tired of purchasing a charger every 2 months blower. My 40 volt batteries the positive and negative wires hook up maybe the battery voltage the... - details Home Depot where I got it to work briefly, but the be... Stops with 1/2 charge showing on the battery to be inoperable most common cause for your Ryobi 40v lawn. The time or the charger believes the battery is only putting out 26ish volts or.
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