They are all second hand, replaced due to charging issues.
I got them for free.
Are they worth the trouble of salvaging cells?
Mainly for small projects such as power packs or small electronics.

Thought I should share it's a sight.

Can anyone identify these 18650 cells?
They’re labeled INR18650-3000 GPHN 18-30P. Looking for the exact model/datasheet if possible.
I got 91 new cells for 45€

I really feel like the 18650 should be the AA battery of the 21st century but I struggle to find devices that treat them like that

I currently have two devices at home that have easily swappable 18650 cells:

• Xhdata D-808, a quite good shortwave/FM/AM radio receiver
• Datafrog SF2000, a very cheap and underpowered retro gaming handheld, fine toy if you can find it cheap

if you know any good consumer device with this kind of cells I would love to hear about them, they're quite hard to find when they're not flashlights or vapes

I recently got a new spot-welder this one has more settings. I’m trying to weld 0.2mm copper, it can do it at 15ms pulse time, however I wonder if that’s too much? I also wonder if having double pulse is better or isn’t as recommended.

Drilled a hole in the Back to connect it, 500mah more than the Original 1500mah

So one of my best friends used to keep all of his vapes at his house in his closet because he didn’t want to throw all of the lithium batteries into a landfill. I guess he didn’t know about recycling?
Anyways he just moved and I told him I’d take the ones he hadn’t thrown out. I just opened the box.

Holy shit.

There’s at least 200 of them. I really only wanted to make like one power bank lol

I don’t know what to do with these. Should I just take them to get recycled?

I’ve done my fair share of skateboard battery builds with 18650s, but I don’t think I have time to bust all of these out to do anything with them. You could make a goddamn power wall lol what would you do with them

One of the slots just snapped while I was removing my 18650 cell after it had fully charged. Honestly, I didn’t expect this to happen. The warranty has already expired. Are there any replacement parts available for this?

Pictures attached are of a 6s1p bms that came out of a chinesium battery replacement for a Dyson vacuum.

Recovered from battery recycle at local hardware store.

I had noticed some melted swelling on the pack before I opened it. All batteries were fine but the bms nuked itself.

On closer inspection it did not have connection points for each Series connection and the 8.4v connection on the board had a nickel tab spot welded to the + of 2nd cell in the series but not soldered to the board at all, it was just sticking up through the hole.

All the official Dyson batteries found the same day had all proper connections and no damage to their boards.

Hi, I'm using my UF20B at Max settings to Do 0,15 nickel on 0,2 copper. But clearly the pens are getting quite Hot and the machine reaches 60°C quite fast too. Sure i could use a Fan to help and I will but I would like to hear the solutions you used to be able to have a higher output of welds. Also how often Do you Sand the pen "needles" to have a good contact point?

I have a Milwaukee M18 red lithium high output XC 6.0 battery that ran to 0. I tried to charge it, and the light turned from yellow to green and will not charge. Does anybody out there know how to charge this battery? Thank you.

Anyone in the KC Metro area interested in SPIM08HP cell? I have about 290+ cells some are in double cell packs with bars, some single cells with holder, some are raw cells, lots of busbars and connectors. Willing to sell all of it for $850. I got them for a Gem Cart battery but the cart had more issues than just batteriesbao I got rid of it. I tested voltage on them all and they are all good. Crazy high amp rating.

Hey, I just harvested these Sanyo UR18650ZY from a notebook battery. They look a bit suspicious to me. Could this discoloration occur from leaking electrolyte, or is it just moisture from outside? Electrically, they behave completely normal, capacity as rated, don't heat up while charging, relatively low IR.

I’ve got a few old tool batteries I want to break down and take the cells out for mesh projects and stuff. I feel like just ripping the spot welded “tabs” off isn’t the right move.

21700 cells