I hooked a multimeter to the battery leads and the voltage slowly drops as the battery slowly drains itself. All of the 4 battery lights blink quickly for 5 times then once for a longer amount of time. I’ve got the blinking red green issue. I havent currently got any of the devices here to check how they work at the moment. The battery held its full charge from the fall and I used it, but now that it died, it won’t recharge. Using international brand LG batteries cell, the same as OEM batteries. If I’m forced to buy another charger, I’ll have spend more $$ on chargers than the equipment alone. An email has been sent to your account to activate your account. Turn off the charger, and remove the battery. They all flash at the same time four times. I put the battery on the charger and it lights up steady green. On my mower, the bolt the handle swivels on was loose enough that the switch would vibrate so that the mower thought the handle wasn’t properly positioned for safe operation. Is there a fix for this? Comply with FCC RoHS and CE security testing standards, If you have any questions, please feel free to contact us. Then try charging the battery again – this may be enough to kick the battery back into life. Thats great news! The charger will plug into any outlet that is of normal household voltage, or 120 volts. Both chargers have the same “manifestations.” This all started after using my leaf blower with all three batteries, and trying to recharge. Do that for all suspect cells, then quickly replace in charger. Shows all green but will not work. I have a 40 volt Ryobi that displays a 100% charge, but only has 19 volts on the terminals. I really need to get this battery going, again! Have you tried the methods in the article? my Ryobi trimmer stopped working after the string coiled up twice, jamming in between. OP401 battery charger pdf manual download. Two other things I’ve noticed. Some people say that you dont need to condition Li-Ion batteries, others say you do. A problem occurs when you use it till its empty of charge, then let it sit for some months. The indicator lights on the battery show depleted charge, but it isn’t completely dead – I used the weed eater briefly, but it had slowed power. So while we all love the Li-Ion technology of modern day batteries, it does have some problems that older styles of battery didnt have to worry about. It has been sitting in my garage for several months, so the idea of “sleeping” makes since but it does not seem to take the charge from the other battery. Thank you very much for this fix that reallyworks. Did you try the methods of waking a sleeping battery? Essential Home and Garden provides trustworthy reviews, guides and tips for anything and everything to do with the home and garden. When not under load the battery reads 38 volts once again. Can the cells be replaced, making it new again, if this continues to happen? If I release the trigger, and tap the outlet or remove and replace the battery it will start but only runs for 30 seconds or so. Read Our Guide. If it is reasonably new, then it would be best to get both checked under warranty. option 3 worked. So when I recharge the battery, it flashes red, during the entire charge cycle. Then I tried plugged in the charger with the battery already in it. I just told the dude that answered the phone that one of my two batteries was showing RED/GREEN flashing on charger. I bought a 40v weed eater and charged it last night to full. Thinking the circuit board must be bad, but interested in your thoughts. why would battery charger light stay green if battery is defective (only charges to 18 v)? 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. 5000mAh 18650 Battery Holder RYO40B Lithium ion Battery 40V Replacement for RYOBI 40V Battery OP4026A OP4026 ... Place battery in charger, the light should flash green 3. I only get 21 Volts at the output. If you want to let me know the model number of your tools/battery I can look up a replacement for you. So, I have two good batteries and know how to resuscitate them. I spoke to Ryobi who told me that 6 years is over the lifespan of the batteries. This is new equipment purchased a couple of months ago. Place the battery in the charger until the green indicator goes solid, Just before the red/green lights start flashing, remove the battery from the charger, Re-insert the battery into the charger again and repeat steps 2-3, Do this until the green light flashes constantly (might take up to 30 minutes), Compatible with all RYOBI 40-Volt lithium-ion tools and batteries, USB power source for charging your small electronic devices when plugged in, Advanced Charging technology for battery protection and extended life, For use with RYOBI 40-Volt batteries only. If you are having trouble finding a replacement let me know and I can help find an exact match, but Amazon should have you covered. I have a Royobi 40402 40V blower. Ryobi 40V battery charger Flashing Red and Green If your battery is showing red and green flashing lights, don’t panic! When I put battery in charger the flashing red light appears. I had a similar issue. does this mean it is stuffed? You probably need charger. It shows as fully charged but when it’s used in only runs the tools for a few minutes and then quits. Seems like a memory issue. Aaron 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. When I plug the charger into the wall, the red light comes on. 5147851-00 battery charger pdf manual download. They still hold a charge, but they are now incredibly hard to get into and out of any of my tools or chargers. Ok, have a ryobi hedge trimmer, 40v. More info here. Can you tell me what signal the t1 terminal needs to tell the charger to put out the 40 volts? Also know, why does my Ryobi battery won't charge? The only thing that I can think of is that you have accidentally bumped one of the contacts out of place? Maybe someone else can help out if they read this. Hi! 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