I pulled my 7.5A/h pack apart as it would start to charge then stop and the charger would switch off. After pulling it apart I noticed the terminals were really dirty. So I carefully cleaned then and batts looked to be OK so reassembled and now its working perfectly! Thanks for showing me how to get it apart and test.

When i had this issue, i dropped it on the floor about 1 foot off the ground.... it fixed the issue 🤣 . Found that fix from a comment on reddit, and Apparently its worked for many people. For a product so expensive, these batteries are built pretty cheaply.

Excellent video. Diagnosed to find the culprit is what it is all about.

The one piece of advice I'd give all ego customers is this: register your batteries!! They have a good 3 year warranty if you register them, and they are very good at replacing batteries that have started losing their ability to hold a charge. I just replaced a 2.5ah, a 5ah and a 10ah battery, and all I had to do was call EGO and tell them they weren't holding a charge any more and they sent me three brand new batteries. They would have cost me about $900 or so, so that's a great deal. Now I'm set for at least another 2-3 years, and before the warranty on the new batteries goes out of date, I'll replace those as well. So now I have new batteries and the old ones as backups. REGISTER YOUR EGO EQUIPMENT AND BATTERIES!

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

Mine was the termistor. Thank you! 🎉

Dude, the stuff that is encasing the BMS actually comes off fairly easy on some of the batteries. Fuse on the larger batteries are bigger too. Man your vids inspire me to make more vids!

This was very useful for me. Thanks

Excellent video. Thanks

Very good video!

Thank you for the information!

Hello and Thanks, have you had any luck finding matching BMS boards on AliExpress or other places?

Yes you can remove the circuit board. I've done it. Peel off the gdet silicone and there's philios screw underneath

I love your accent. You sound foreign and learned English in Mississippi. Lol Keep at it!

Where can one purchase a (used) 2.5Ah controller or bms? I have a battery with good cells but it wont charge. Thanks

You explain things really well thank you! P.S. On a crank sensor (red / black / blue wires) how do I check the polarity of the red and black - is it OK to just swap over and see if it works?

Also found out when attempting to replace one of my dead batteries, EGO had the info for the warrenty on file, but because they didn't have a copy of the reciept on the dead one, they would not honor it, even though they acknowledged i purchased it as a new product. They said it was up to me to find my two+ year old receipt. Rethinking about staying with EGO. Really ticked me off.

Thank you for your video. Where can you buy individual battery cell?

Hi Where do you buy the battery for replacment? Thanks

Awesome very informative. Learned a lot thank you

I have about three dead EGO batteries. Do you offer a repair service. I'd be happy to send them out

Opened up my battery unplugged everything. Plugged it back in and it started working again

This was a very informative video. Your English is very good, but your accent takes a bit of getting used to. Vietnamese? Anyway, thank you for the video and keep at it!

🔥📈🧠

I accidentally pulled out the connector wiring I need a picture of the wiring 5.0

I have a brand new 5.0 AH Ego battery the board went bad………….The cells are all Ok, I was thinking of attaching that battery to a working 2.5 ah battery; connecting ( Positive & Negative) terminals tapping the two batteries together……That would make the battery 7.5 ah battery, you think the board on that 2.5 ah battery could handle it????????????????

So why do the volts add up in increments like that? 3:49 Thanks

I am going to guess that the people who hsve had success dropping the battery are just causing the connectors to move slightly and then make a better contact. I hsve tried smacking the battery without luck. Putting them in the refridgetator for a few hours worked once or twice. I had one battery that would not charge, i put it in my blower and tried to start it.. If i could get it to run fot a few seconds , then putting the battery on the charger would give a normal charger However the capacity was nowhere near normal

I have one of these EGO batteries on my leaf blower. After watching this video, I would not buy another one of these products. What did you decide to do? I assume you tore it apart to use the cells, but these products are so damn expensive to begin with.

Nothing was repaired but just disassembled.

I'm thinking a gas powered tool would avoid all the electrical issues.

Run out my second battery, these are truly BS products going back to gas so I don't have to deal with their headache.

At the end of the video you said "so that's how you repair or salvage" but you did not repair anything.

Promo SM

Registering your batteries will not BE COVERED under warranty UNLESS you bought at their stores they say go to. I have several items they were given to me as a gift and EGO refused to cover under warranty. TERRIBLE CUSTOMER SERVICE.

DIY Home disassembly of lithium ion battery packs should not be encourage watching videos like this , fire and explosions are danger to others causing injury and deaths.