This is commonly known as the battery being in “sleep mode”. So I have some good news for you; it is possible to fix most Ryobi 40V battery problems yourself. Hello I’ve got a Ryobi 40v battery that has been great up until lately it shows all green on the battery but dead in the leave blower. The charger comes with two LED lights that indicate the state of the battery and its charge level. Is this a symptom of old batteries? Thank you thank you thank you! That’s a tough one – it could be the battery or the actually trimmer itself. Does a solid green indicate the battery is charged or a solid red? Is there any reason that you can’t replace the battery? Hey this is Sam Peters. Whether you have a Ryobi cordless mower, a pole saw or one of the many other tools available, a common problem with Ryobi batteries is when the charger shows green and red flashing lights.. 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. when i went to charge it, my charger light is green but the cells on the battery do not light up. Any idea’s. Thank you very much! Which ones? I got a Ryobi 36v charger BCL3620S. The battery works as expected. Is it the release button?? Then unplug the charger and clean the terminals inside the charger port. I have 2 40 volt ryobi batteries with a similar problem. Still dead. What is the best electric fence charger for goats? Also know, why does my Ryobi battery won't charge? Hi Lynn, This year I have one battery that won’t work in the mower despite showing its fully charged by the tester. I have had to replace my battery ( 40 volt lithium Ryobi ) three times luckily through warranty. Same here and it’s a relatively new battery. My charger APPEARS to be charging – green lights flashing on both charger and battery – however, the battery is not charging above the current level. There are much better lights out there for little more money. I can look into it for you. 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. I picked up one of these units. Wondering what it could be? How much thinset do I need for tile per square foot? Frustrated. I put it in the charger, all I get is the red power on light. . If they are over 3 years old then it is likely just that they are getting old. So if you power off the charger for a while then plug it back in it still flashes red and green? Any ideas? Sounds like either the battery or the charger has a fault. This is a sign that your batteries are on the way out. If the same fault occurs then you have a faulty battery, if the problem does not happen on a different charger then it is likely a faulty battery charger. No problem! Nice job saved me the cost a new battery. Like I said its not the batteries. Aaron, View and Download Ryobi OP401 operator's manual online. Thanks. I tried method three, and all it did was ruin my charger. I would try bringing the battery charger and battery inside, let it warm to room temperature then try charging again. The Milwaukee had been dead for at least a year and wouldn’t take charge but now its perfectly fine! Thanks, again! Any suggestions? ernie. Thinking the circuit board must be bad, but interested in your thoughts. The most common cause for your Ryobi 40V Charger showing flashing red and green lights is that the battery has been over-discharged. I had same problem with generic batteries in my Ryobi mower, runs for less than a minute and cuts off. Thanks for the feedback Neil. The voltage on the battery only reads 27volts from the + to the – terminal on the battery. Hi! once you get the rhythm it goes pretty quick. Did you already experience this or are you interested in if I find ? Do I need to do this for a longer period of time? Thanks for your help! Fix option 1 does not show underneath the 40 volt batteries the positive and negative wires hook up. Share ... Ryobi 36V 5Ah battery when I put it in the charger, the alternating red and green LED blinks, the voltage between the + and - terminals on the battery shows 11 V ... my buddy gave me some 40V lawn tools last summer. 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. My 40v batteries fuel gauge stopped working after the string coiled up twice jamming! Plugged into the charger again and repeat charger port but you can ’ t either! 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