Tap to unmute

EGO Gen3 Pack Repair - No Power

  Рет қаралды 3,035

Thrifty Tool Shed

Thrifty Tool Shed

Күн бұрын

Пікірлер: 33
@RustyFPV-oh6mr
@RustyFPV-oh6mr 6 ай бұрын
Wow, you saved me a lot of time! My issues were the transformer with two coils shorted together and a burned diode next to it. Also I damaged a super tiny smd resistor next to SMT32 while peeling off the silicon, I don't know what's the value of that resistor so I blindly put 2KOhm, it gives 2.4V for the MC and still working, according to datasheet it needs at least 2V. I replaced transformer with DA2320-ALC, it works now! Thx!
@ThriftyToolShed
@ThriftyToolShed 6 ай бұрын
Awesome job! Thanks for sharing!
@DIYguy2
@DIYguy2 7 ай бұрын
I got two 5AH batteries that had no power which was the same problem, the transformer. I got curious about the transformer and tried to do some research which lead me to a forum post on EEVblog which may be the post mentioned in your video. I went with the P0926NL because the ohm reading was closer to the old transformer vs the DA2320, also had to make a custom pcb to adapt it. So far it's been working!
@ThriftyToolShed
@ThriftyToolShed 7 ай бұрын
Awesome job! Thanks for sharing this!
@Bi0
@Bi0 5 ай бұрын
Do you happen to have the PCB file for the adapter you made by chance?
@DIYguy2
@DIYguy2 5 ай бұрын
@@Bi0 I do have the files for it. Just a heads up when I say adapter, I meant just a board so the pins are in the correct order. You will still need to solder wires from the BMS board to the adapter.
@ThriftyToolShed
@ThriftyToolShed 5 ай бұрын
Awesome. Just to mention if anyone desires to share a file like this with the community you can use the Facebook group On The Bench if you would like. If you have other outlets or your own group please let us know so we can support that as well! Thanks for any sharing it helps a lot!
@superspeeder
@superspeeder 7 ай бұрын
I’ve got a 7.5 that’s acting up. It will show fully charged on the charger, then indicate it’s only 2/5. I’m going to try cleaning and re-seating the connector as you’ve done with this 5 Ah and see how it goes. Great content as usual!!!
@ThriftyToolShed
@ThriftyToolShed 7 ай бұрын
Also hold down the button for 5-10 secs until it flashes. It seems to be a type of reset on Gen3 boards, but I guess I never really call it that since I am not 100% it resets truly. It seems to flash and show differently afterwards on some packs. Thanks for your kind comment!
@toolscientist
@toolscientist 7 ай бұрын
Apologies if I missed it, but what is the purpose of the DC-DC converter? Wouldn't a LDO regulator do the job? The LEDs are the only thing drawing power in the milliamps, and they're only on for a few seconds.
@ThriftyToolShed
@ThriftyToolShed 7 ай бұрын
Yes, it seems overkill to me for sure. Not that I am an EE so I could absolutely be missing something. I have mentioned the Converter a little in some other older EGO video, but I have not talked much about it since I have many questions also. I think going from almost 60V down to 5V or 3.3V typically a converter is used for efficiency, but I don't really know why it's so complicated. It has 2 lower level outputs and 3 separate busses it seems. The BMS has 2 microcontrollers, also a calendar chip for pack maintenance (the pack will self discharge to around 30% after one month of storage). This is the BMS board I asked you awhile back if you had ever looked into.
@toolscientist
@toolscientist 7 ай бұрын
@ThriftyToolShed i might have to look at those board images you linked. I guess a dual output voltage transformer can save components as you only need 1 switching mosfet. I would have thought capacitive buck converter down to 12V (was 12V one of the transformer outputs?), then LDO down to 3.3v for the lower voltage bus would be better. At these power levels you can easily find ICs for synchronous buck with the mosfets built in - just have to BYO capacitor. Anyway, sounds like an interesting circuit.
@ThriftyToolShed
@ThriftyToolShed 7 ай бұрын
@@toolscientist It would be awesome if you could share more about this board. I have worked on these starting back around 6 years ago with the very first EGO pack repair. Since these packs and tools are beginning to take the place of many small engines I don't want to lose the ability to fix things ourselves when these fail and they do fail. Your take or video on these type of BMS would be awesome!
@toolscientist
@toolscientist 7 ай бұрын
I just rewatched. 10.25V and 8.25V buses. That doesn't make a lot of sense. Does the board teardown have a parts list, too?
@ThriftyToolShed
@ThriftyToolShed 7 ай бұрын
It doesn't. it just helps with pads and traces. I need to send you a board. I would send a complete pack, but I still only have 1 complete Gen3 pack. The older packs are similar but don't have the white wire. I don't think it matters except on 10Ah packs? Now the white wire is exactly what one of our conversations was on a while back. it may have something to do with the SMD 60A fuse modules on the 10Ah and larger packs. I plan to talk a bit more on that subject in the future as well. The same type SMD protection that you found on the newer Makita packs! Interesting.... We need to find a way to get you a 10 ah pack... They are expensive!
@IJChan223
@IJChan223 7 ай бұрын
Awesome video, thanks for sharing I've learned a ton from it. A majority of the bad 5AH batteries i come across have this problem , and the others have a bad temp sensors.
@ThriftyToolShed
@ThriftyToolShed 7 ай бұрын
Awesome! Thanks for sharing and thanks for your kind comment!
@acoble9015
@acoble9015 7 ай бұрын
I had two 7.5 ah batteries start acting up and flashing red back in November. "Coincidentally" they had also just passed out of the warranty period. When I took them apart I couldn't see anything wrong, voltages were all the same and within spec. No swelling or visible damage. Oddly enough when I plugged the BMS back it it read as fine. Haven't had an issue with it since. Now I haven't reversed the logic chips or anything, but I am highly suspicious they may have a timer in those gen 3 boards set to kill the battery just after the warranty period and that disconnecting the BMS resets that timer. Like I said its been about 6 months and no further issues from the disassembled/reassembled batteries.
@ThriftyToolShed
@ThriftyToolShed 7 ай бұрын
Excellent job getting the pack back working! I have seen several packs work after doing that, but it was absolutely because of light corrosion or poor connection at the tiny connectors. I have not had enough Gen3 packs to say anything definitively most of the ones I am referring to were Gen1 or Gen2. At times it takes plastic safe contact cleaner or a gentle scrubbing of the tiny connectors to get it working again.
@365daves
@365daves 7 күн бұрын
Have you come across a bms with no power and it wasn’t the transformer? I have a gen 3 bms with 54v to the board, transformer doesn’t show shorted and the caps have voltage but doesn’t light up. Runs a blower for about 10sec and doesn’t charge. Tried the reset but didn’t change anything
@ThriftyToolShed
@ThriftyToolShed 7 күн бұрын
I haven't, but I think a couple of posts on our Facebook group called On The Bench have mentioned this. Seems like one maybe had a open resistor. Typically it is the transformer that I have seen. If all 3 voltage rails are good then I would look towards the microcontroller and most likey a 5V regulator could be powering it? It is common for the tool to run about 10 secs and shut down if no communication with the BMS is established.
@georgef7754
@georgef7754 7 ай бұрын
Well done everybody. Great repair.
@ThriftyToolShed
@ThriftyToolShed 7 ай бұрын
Thanks for your kind comment!
@epd807
@epd807 7 ай бұрын
Excellent video! Thank you!
@TheHitman5c
@TheHitman5c Ай бұрын
I have 2 5ahs with bad BMSs is there anywhere we can buy good ones?
@ThriftyToolShed
@ThriftyToolShed Ай бұрын
Not that I am aware of. I have tried getting some of the aftermarket boards since they are very similar (like they cloned the real EGO BMS). But I had no luck yet. None of the aftermarket sellers that i contacted would sell the board alone. I tried. Even when I offered to buy 100, they would not do it. EBay has one listed from time to time.
@brucebuckeye
@brucebuckeye 7 ай бұрын
Good job. Very satisfying!
@ThriftyToolShed
@ThriftyToolShed 7 ай бұрын
Thanks for your kind comment!
@robertgreen4050
@robertgreen4050 7 ай бұрын
Great job 👍 enjoyed it
@ThriftyToolShed
@ThriftyToolShed 7 ай бұрын
So glad! Thanks so much for your kind comment!
@jdmccorful
@jdmccorful 7 ай бұрын
Good demo for me because of owning equipment that uses the 56vdc battery pack. Question comes to mind if possible to repair windings? I know it's done with radio IF transformers . Thanks for your time!
@ThriftyToolShed
@ThriftyToolShed 7 ай бұрын
I truly wonder the same thing. I honestly had issues simply removing all the silicone and solder from the pins on this tiny thing. I really wish I could rewind it, but it's so tiny even under the microscope I wonder how hard it would be. I do see bobbins for sale similar to these that you can wind your own so surely someone has done it. Excellent question. Maybe someone will share in the comments if they have done that before. Thanks for your kind comment!
EGO Gen3 Pack Repair #2
21:59
Thrifty Tool Shed
Рет қаралды 1,3 М.
10 Soldering Tips to Instantly Improve Your Soldering Skills
5:46
FlightClub
Рет қаралды 2,1 МЛН
Hilarious FAKE TONGUE Prank by WEDNESDAY😏🖤
0:39
La La Life Shorts
Рет қаралды 44 МЛН
Wednesday VS Enid: Who is The Best Mommy? #shorts
0:14
Troom Oki Toki
Рет қаралды 50 МЛН
Machine Learning & Neural Networks without Libraries - No Black Box Course
3:37:32
EGO 5Ah Gen2 Repair - Cells Replaced
29:58
Thrifty Tool Shed
Рет қаралды 4,9 М.
Repairing broken traces on a circuit board
23:50
Branchus Creations
Рет қаралды 678 М.
EGO Gen3 v2 Repair #3  Blinking Red
17:19
Thrifty Tool Shed
Рет қаралды 1,9 М.
GENTOO LINUX ON OLD PENTIUM 3 LAPTOP
38:10
Cat Peep
Рет қаралды 934
DIFETTO BATTERIA EGO POWER 5Ah
14:36
EVS garage
Рет қаралды 10 М.
EGO Light Board Repaired
37:28
Thrifty Tool Shed
Рет қаралды 705
Branson UltraSonic Cleaner
45:02
Thrifty Tool Shed
Рет қаралды 409
EGO 56V ARC Lithium Battery Repair
57:37
Thrifty Tool Shed
Рет қаралды 58 М.
Hilarious FAKE TONGUE Prank by WEDNESDAY😏🖤
0:39
La La Life Shorts
Рет қаралды 44 МЛН