Well done! I’m collecting a library of videos from you guys who are repairing these expensive batteries. Thank you. Winner winner chicken dinner is right!
@davidhoppe306215 күн бұрын
just had one of mine do the no charge when put in the cradle. Took it apart and removed all the silicone off the board and looked through the magnifier and low and behold, there was a lifted resistor from the factory, soldered it back down and Wala
@madscientistlife21 күн бұрын
I just wanted to see what cells were in it. Not accomplished. I'll just take it apart and see for myself. I'd like to upgrade the cells in my old grinder battery. I should just buy a dewalt since I already have batteries to go with my dewalt tools. However I already own an old ht grinder and therfore can't justify buying dewalt grinder just yet. Especially considering I have old cars to keep on the road and bills to pay. Good job rigging your buddy's battery for him. God bless
@madscientistlife21 күн бұрын
Clean, flux and tin everything then it will take solder just fine. Also don't heat the solder. Heat the (prepped) work, then feed the solder into the work.
@rxmas723423 күн бұрын
I wish I would have seen this a few weeks ago, I followed a different video and ruined my original install mmc (4800 - not Plus) I'm working with Ugreen to try and fix it but if I can't it will be months before mine gets fixed. Great video.
@ernestol.guerraa.404029 күн бұрын
Jajajajaja Mr. Morrison is the man!!!
@tk543Ай бұрын
Wish your "fix" wasn't out of view..
@Number1fanofcaptainАй бұрын
Could you post a video of the various BIOS menu options?
@lmorrison17Ай бұрын
I wish I would have done that it would probably make a good video. But I have already deployed it at a family member‘s house as an offside back up.
@alski259Ай бұрын
Everything looked do-able until you introduced that "Smart Charger" @14:00. That just blew up my chances of replicating what you're doing.
@lmorrison17Ай бұрын
You can use anything that will supply no more than 4.2 V. Ideally, you will be able to regulate the current but it’s not 100% necessary. Any little DC DC converter off of eBay or Amazon will do. send it to the voltage. All your other cells are resting at and bring the group up slowly.
@effingdingusАй бұрын
These helpless people never picked up a soldiering iron. It’s good to be a jack of all trades at 21! Doing this as we speak haha.
@LetsGoLook1Ай бұрын
At any age.
@jeffshriber61202 ай бұрын
You could be in business forever doing micro minature repair on ego batteries their design alone gives you job security. Think of it a $350.00 dollar battery bought dead on arrival for $20 to $30 dollars, repaired and resold as refurbished for $200.00 as is no warranty gives you a $180 dollar profit. What really bothers me is ego knows their battery quality is so poor they expect you to just trade up and buy a new tool with battery which is cheaper then geeting a new battery. To me this disposable society attitude is so terrible when all ego has to do is sell the perfect product in the first place and stand by it with a lifetime full warranty. No pro rate. One for one swap.
@jeffshriber61202 ай бұрын
What caused the trace to burn out was improper assembly at the assembly line due to contaminates entering the prodiction line from chineese laborers in a village that that get paid .50 cents a day, no clean room no esd straps no bunny suits, srcond someone touches the mother board with bare hands its doomed to failure. Never mind poor QA.
@jeffshriber61202 ай бұрын
2 reasons why i see so many ego batteries going bad and red circle of death after first two years and this is gen 4 im talking about, 1) they keep using cheap generic no name 18650 batteries in parallel, and secondly and most important they are designed with subpar discreet wiring of 24 guage or smaller. Ego, listen to me on 56 volt batteries? Really???? The wiring on military aircraft is bigger than that and its onjy 28vdc. Abf has to be light weight. Come on now ego, you can do bettet tgan that l, stop making disposable batteries. Make domething customets can be proud if and btag about in reviews.
@kingvegeta27392 ай бұрын
Good job pal
@ericanderson90042 ай бұрын
Seems like ego BMS’s do not active/passively balance…
@craigmanning4442 ай бұрын
I have a 2.5 AH Gen 1 that failed with the flashing green light. Replaced the shorted Q12 transistor and that corrected that issue. I was able to charge and use the battery again. However, within a week, it was now flashing red. Opened it up and this time, only one cell was significantly depleted (0.9V YIKES). Followed this excellent video and charged it up with a power supply to match the rest. Let it sit unplugged from the BMS for 24 hours and that cell held the charge perfectly within 0.01V. Plugged in the BMS, drained the battery with the leaf blower. That cell drained in proportion with the rest of the cells. Charged the pack on the Ego charger, and it charged in proportion with the rest of the cells. So I don't think there was any significant cell damage. Luckily it wasn't depleted too long. So now, if the BMS is unplugged, it holds a charge just fine. but if the BMS is connected, it slowly drains that one cell. (about 0.2 V over a 24 hour period). Any known other failed BMS components that can cause this? Thanks
@user-yx5pv4xf6d2 ай бұрын
Man you were making me nervous with your knife around your fingers. I think you were suppose to take the top stop off not the bottom. Which I saw on another video and seems easier. Good info
@onlinevisitor3 ай бұрын
How is the battery doing after this repair? My 7.5Ah battery stopped charging above two bars (it is a newer model with segmented indicator). I followed this video and found one group was 3.46V and all others at 4.09V after full charge. I charged the "bad" group of 3 cells with 1.5A current to bring it up to 4.09V. I used a programmable DC power supply and did not disassemble the battery, just disconnected the BMS . I am going to test the battery in the same way - to charge / discharge it a few times to see what would happen with the group in question. If the voltage in the trouble group keeps dropping below others I would, most likely, disassemble the whole battery for spare parts. I would not feel comfortable adding three new cells into the old used battery as I would not be able to match them close enough with internal resistance and capacity. Does this make sense? I will post an update here or ask me if I forget to do this. Thank you to the author for sharing the idea.
@RexJackson-li4pt3 ай бұрын
Is it possible that the fuse link on my battery is located somewhere else??
@optimiskong42193 ай бұрын
hey i have a 6.0 AH battery would you like to work on that?
@LetsGoLook12 ай бұрын
No but thank you.
@congajoel4 ай бұрын
Interesting... make sure your camera is pointed in the right direction dude !! roflmao... don't bother filming !!
@Mahmet-se3td4 ай бұрын
200e in Europe 220v
@gudzev785 ай бұрын
Which cells are in this 21700 or 18650 battery?
@LetsGoLook15 ай бұрын
18650
@mohgujai5 ай бұрын
I would've just used the balance leads from 4 to 5 and charge from there instead of taking the pack apart. Just set a low current like 0.2A
@LetsGoLook15 ай бұрын
The pin holes in the connector are smaller than regular header pins. I will often use bread board jumper wires but they didn’t fit. I suppose I could have used a sewing needles in the holes but they awfully close together, good chance of an accidental short with my shakey hands.
@MrJohnnyb425 ай бұрын
Do they have silver or gold in them?
@LetsGoLook15 ай бұрын
No
@antonioserra20016 ай бұрын
Explains a lot and I think it will help me salvage some of mine….. great job
@loretacolombo50116 ай бұрын
These blow when charging batteries and you get the polarity wrong. Got sick of replacing the diode so I now put the diode across the screw terminals on the outside case connector that way when I get it wrong again and it goes off (sometimes like a cracker) I just unscrew it off and replace it in a few minutes.
@loretacolombo50116 ай бұрын
I've done this also but found eventually the same low cell bank goes low again and battery goes out of balance again. I think a cell is actually damaged and drops voltage over time. Is this your experience?
@davidwilson74766 ай бұрын
hey lmorrison17 is it possible to jump a completely dead 0.0 hyper tough 20v max battery. because i plug it into the charger only one green light is on... when normally charging a batter both indicator lights come on. thnks
@lmorrison176 ай бұрын
Anything is possible, but I wouldn’t do it without taking it apart and verifying that each cell will take voltage individually without overheating or going short.
@fifthojack10526 ай бұрын
Thousands of fires each year from idiots tampering with defective batteries and yeah......great idea to make a video of this and post it on here. No schematics, no idea what all those components are, just tell someone to do this and take chance of burning their home down. Things fail on these boards for a reason.
@lmorrison176 ай бұрын
Everybody calm down. I didn’t tell anyone to do anything. I just showed them what I did. Thank you and everyone appreciates your concern.
@bobshafer585011 күн бұрын
Do you repair others batteries? I bought a used 7.5 amp hour ego and when it goes on charger it blinks green one and then does not charge.
@sbm2553887 ай бұрын
Good job! Now I’ll know how to replace the zipper pull on my son’s Carhartt jacket. Thanks for the video!
@lmorrison177 ай бұрын
Your welcome and good luck.
@jjstelzig7 ай бұрын
Great job! I’m fixing to have to tear my 5ah apart. Has a green light but won’t charge. Has 49v on it.
@lmorrison177 ай бұрын
Im gonna guess its a low cel group.
@claudemongeon18207 ай бұрын
Same problem but the Fuse IS good! Now what?
@lmorrison177 ай бұрын
If it was me, I would take my multimeter and start looking for a broken connection.
@Denydee-uw8ki3 ай бұрын
I have same problem, fuse is OK , but drill does not work... only blinking light !!! Any solution?
@Lagos3sgte8 ай бұрын
Great video! Nice work!
@illusionsdelusions75528 ай бұрын
I was expecting to like flick the bottom, or clean with an alcohol wipe or something. Idk how to do all this!
@user-ig2ge9bp5y8 ай бұрын
My solder melted after a few starts. The thing about this fuses it has a copper wire bridge that has a higher specified melting point. I would recommend using silver solder which has a higher melting point. Because this baby does get hot.
@lmorrison178 ай бұрын
Thanks for the heads up. Mine kept working until the replacement arrived, and I still have it in the glove box for a back up.
@Therians_woods8 ай бұрын
TRUE but what the fuc-
@OldWizard.8 ай бұрын
True 😳
@machs708 ай бұрын
What did you use to take the white glue/ connector’s coverings off?
@lmorrison178 ай бұрын
I think I used a little plastic pry tool for taking phones apart. A spudger.
@kenclinton48818 ай бұрын
You mention that by bridging the blown fuse that you are bypassing the safety feature. My question is if I do this what can I expect to happen if it tries to blow what cant be blown, an explosion, a fire or...?? Just curious, thx
@lmorrison178 ай бұрын
I am not 100% sure but I think it’s more likely you’ll kill some cells or blow something in the electronics maybe the motor.
@kenclinton48818 ай бұрын
Well I took mine apart because it's the same battery, Kobalt 2 AH with exactly the same symptoms as the one in your video however the fusible Link in mine is still intact, so there must be some other component(s) bad. Ill chuck it in the junk drawer I guess lol. Thanks 🙋♂️
@lmorrison178 ай бұрын
@@kenclinton4881 did you actually verify continuity from both sides with a multimeter? I have seen fuses that looked ok visually but were no good.
@kenclinton48818 ай бұрын
If you are referring to the continuity between the big metal blades at opposite ends then yes I did, it went from OL. to 00.0. Everywhere I read voltage it reads 9.47ish
@highpwr9 ай бұрын
I'm pretty sure if you would have contacted Probemaster and told them about the broken test lead, they would have replaced your probes with a new set at no charge...
@lmorrison179 ай бұрын
That’s no fun and seems like more work.
@braxton343419 ай бұрын
Great work! I have 5 ego 56v batteries that have a dead T1 coil (6 pin silver cube) on the BMS board. Do you know how to repair that or what part number is needed? Thanks.
@lmorrison179 ай бұрын
I wish I did. I have two boards with that same transformer blown.
@evecll9 ай бұрын
Dude compost it
@TheRealMozes9 ай бұрын
Its illegal to burn stuff like that here. We have metal boxes outside that they come snd suck out every week with a big truck.
@havaateoate24909 ай бұрын
I think you're a genius
@lmorrison179 ай бұрын
Wow, that might be the greatest comment I have ever gotten.
@ntleaver299 ай бұрын
A replacement came today off ebay. Will fit it at the weekend Thanks for the video ( from Birmingham, England 🇬🇧. 👍)
@lmorrison179 ай бұрын
Hope it helped.
@rogue2779 ай бұрын
What is that box you have that connects to the main terminals?
@lmorrison179 ай бұрын
It is an EGO POWER ADAPTER. Similar to this one . a.co/d/aZDIzsq
@radezzientertainment5019 ай бұрын
My guy wants me to solder some shit rn cmon man
@lmorrison179 ай бұрын
You should hook a buddy up then.😄
@jonrobichaud633210 ай бұрын
I bought threw up
@togr824get10 ай бұрын
I'm curious what happened
@lmorrison1710 ай бұрын
We were moving a large rolling scaffold (HydroMobile P-Unit) and he got his elbow caught between the wall and the scaffold. Then he just jerked his arm out real fast and left a little bit stuck to the wall.