EGO 56V Gen1 5AH Blinking Red on Charger Fix

I'M REPOSTING THIS FROM ONE YEAR AGO. IT SURE DID THE TRICK FOR ME "THE BANG TRICK WORKED .SO glad I saw the comments about banging the battery from about a foot off the ground and dropping it. IT WORKED I had THREE bad batteries. ALL THREE have been working GREAT since May and I recharge and use the OFTEN. HOLY GUACAMOLE. Those three bad ones were here for over a year. I bought two news ones for 200 bucks a piece but something told me NOT to throw those bad ones out. THREE bad batteries now working PERFECTLY for five months with CONSTANT charging. I have the lawn mower, leaf blower and snow blower and I use the blower daily and the lawn mower once per week. HUGE area. SO glad I was the comments about BANGING the batteries. THANK YOU THANK YOU THANK YOU"

Working with this EGO batteries, a CC-CV power supply is always a must. I've decided to get a cheap one with a 30V-10A rating for about $50 and it has been a god sent. Great video as always. Clear and concise explanation throughout. Thank you.

How ironic, I just found one of these in my local Lowe's battery recycle bin. Keep all the wonderful videos coming, thank you.

Great video and tons of good technical information that we could use. I have bought a used 7.5 AH battery with the lawn mower. I did not pay a whole lot for it. I believe it is a first generation battery pack. From the start, It was just blinking red. So I hook up 2.5 AH battery to it. But, on the fast charger, it would go from 25% to 100% right away. Then I used two other Ego 2.5 AH battery to boost it, back to back, for much of the morning to early afternoon. The voltage slowly creeping up. I can get the voltage up to 55.7 V on the 7.5 AH battery. I put it on the lawn mower, get it to start, then put it right back on the fast charger. It still the same, goes from 25% to 100% in seconds. I did it twice, like one of the video here "Ego battery hack" suggests. I can mow for like few minutes, put it back on the charger, still the same thing. Last night, I left the battery pack on the charger for the whole night. This morning, I checked the voltage, still like 55.7 V. So the cells are holding the voltage but I could not run the battery on the mower for very long as it is not cycling through the lights, like from red, orange then to green cycling with each of the green bar on the fast charger. What do you think is wrong with this battery? Is it like some of the post I have read: it could be related to corroded terminals? I have some contact cleaner I bought from Amazon. Should I just open it up and spray down the contact points? What precautions I should take so I won't get hurt from the high voltage? I could open up the battery pack and take pictures and post it.

I called tech support with the same issue. They had me push in the battery button for ten seconds to reset it, then it worked like a champ.

Oh, I was looking at my new 56 Volt 5.0 Ah EGO battery, and I thought of you and this Channel. I was thinking, that Man brave to crack one of these open! 50 freaking screws, and all that ‘wizardly’ going on inside! Ryobi 40 Volt held together with like 4 screws!? 😂 Love these repair videos. Hope I NEVER have to try and repair my own! 😆 Best 👍✌

My 7.5aH pack just started doing the same thing. It's about 2 years old and it's the old style. I killed it mowing my yard and when I put it on the fast charger it just went right to 100%. Then after it cooled down a bit (15 min or so) it works just like yours did on the fast charger. I'd bet I've got a cell taking a crap just like yours and a little time to let it build back up brought it back to life. Regardless, Ego is getting a call for a new battery under warranty.

Well, batteries do go bad, or as you say the bms could have a problem. But for sure it will probably rear its ugly head; the problem that is.I'd be interested to see what comes about. Thanks for the look, always enjoyable.

I’m posting this comment looking for guidance. My Jan 2021 7.5ah Ego battery measures 47v with the cover off between the black and red wires. Placed on an Ego rapid charger it goes to all green in seconds on both the charger and on the battery’s multi-light charge indicator. Placed on my Ego leaf blower the battery indicates one lit green light segment, blows for a few seconds then turns off, flashing red. I purchased this on eBay as a non-working, but fairly new battery. The connectors are generously and solidly covered in white silicone caulk. This seems to be a more recent improvement. The board is covered. The cells do not appear to have swollen. I just need direction as to where to dig in first given the conditions I’ve described. Again, this is a very recently manufactured battery. The silicone is so solidly in place that I only want to start with the most likely repair. Lastly, there are two wires, one top, one bottom, that go between the underside of the case and the battery pack, I assume for grounding out static electricity. I don’t know if I can snip these wires and repair/not repair them since I need them out of the way in order to fully open up the pack.

I use a 42" walk-behind gas DR mower to do most of my lawn mowing, and I purchased a 7.5 AH EGO mower in May 2022 to do touchup mowing. The EGO mower has between 10 and 15 total hours of use, and the battery started flashing red and cutting out this summer. I've used it about 6 times this summer, and each time the red cutout became more frequent until now it immediately cuts out and won't run the mower at all. Going to try to contact EGO today and figure out what to do.

Would be great to see the results of the pack after a few cycles of putting it on an electronic load to measure the capacity and then charging it.

I have a newer battery I think that actually has the five LED lights. I had every issue with it but someone in another video mentioned dropping it. I thought he was absolutely trolling. I said I have nothing to lose because I tried everything besides opening it up which I don’t wanna do. I dropped it off my couch and it’s been working fine ever since🤣🤣🤣

I have a 5 AH first generation battery. Last week was cutting the lawn with it fine. Then when I died, I went to charge it and a constant red light came on the battery. On the charger, it blinks red like in this video. Now the battery will not charge. Any thoughts what I should be looking at or is it just too old and I should get another?

I got to get me one of those battery chargers to be able to set your exact voltage yes please

Thanks for the great info! I wanted to ask...after you've removed the silicone potting from the BMS, what are you using to protect the board again from water / heat...physical shock? Your tutorials helped me get a 7.5ah $80 battery off eBay working again, but now that I want to put it together, I'm nervous leaving it unprotected...

Hi, interested to know if the boosted cells held up or did they self discharge again?. Is the pack still working. Thanks for your excellent video's by the way

Thanks for making these videos. I've got a 1st gen 7.5AH 56V Ego Battery. The button shows solid green, then blinking red. Voltmeter has red 48Vs in the contacts and wiring. I'm kind of stumped. A lot of the parts are still in silicon so I may need to do some digging if it's the fuse or not. Any advice?

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I have a 2.5 that had one cell at near zero, so I replaced it. I made sure the new cell was at the same voltage as the rest, but when I press the button, the battery first indicates green, then starts flashing orange. I checked voltage and the battery is at 55v.

Hi, would you ever take a look at a battery? I have a gen 3 that will flash green then red on the charger for quite a while and then will finally show fully charged. It will run my blower for about 5 minutes and then die. I would like to get it repaired.