That ain't gore
Hospital UPS Throwaways - Each unit contains 36 18650’s that range from dead to 2200mAh.
My charging and capacity testing station.
Our high school gets pallets of old laptops from the surrounding districts to mess with, and you know what that means!
A piece of 3/4 copper pipe from the hardware store + 3x18650 = 12V PSU w/car cigarette plug outlet; here's one I used to power a 12V monitor
Milwaukee Red Lithium 18v 2.0Ah
Scored 10kw of 16s1p LG boys today. Came out of some Eaton hybrid packs that were used for testing.
using a ritual to transmute my AA's into 18650's
Tesla battery researcher unveils new “single crystal” NMC cathode that could last 1 million miles
Tested: a bit over 2 kilowatt-hours tower of power!
3D Printed 18650 battery case since I'm sick of the clear plastic cases cracking in my backpack
Wish me luck guys, had my friend in China ship me 100-21700 4’800mah cells. Just need to get to testing them all soon👍
LPT: Those Ferrero Rocher boxes are a perfect fit for storage of 18650
I might be spamming at this point. Added a carry hook, and tested V3.0
This sub is helping me build an ebike!
Follow-up on the $10 Rural King power bank. Looks legit!
Testing a new 18650 charger testing setup
High Quality 18650 [...] Battery
My first DIY battery. It's 8p14s with NCR18650DB's and a 45a continuous controller carrying 1.25kwh.
My brother bought a 20000mAh powerbank it couldn't fully charge his phone so my mom opened the powerbank and they found this... Only 3 batteries are connected to the powerbank and the rest are dummies.
BatBlock V3. 4s6p
I proudly present to you my x3AAA headlamp converted to accept The Cell.
Tired of getting bad quality power banks? Buy a diy kit. 8 x 18650 cells. QC3 and USB-C PD compatible. All for 5$ (not counting cells, obviously)
It was a pain in the ass to build this with the plastic holders.
Just started my building my first pack, wish me luck!
This is how quickly a battery fire become perilous: Lithium runaway in a living room
AAA's are too expensive
Soldering done. Ready to fire the house. First night worked very well. 2TV-s worked from 8pm to 2am. #greenenergy
The first 18650 pack I've built, 7S14P. I've ordered a case and some additional parts for some portable power.
My Start to the 18650 Game in Vancouver
I didn't want to drag the air bed out to a car to fill it
Got the Malectrics spot welder. Pretty happy with the results!
Been at this for about a week now. I really need to get a bigger charger/capacity tester.
Pack is coming together. 7S4P with swappable cells.
The worst part of new battery day
2months of work. 280pcs of 18650s planning to build 14s20p pack for solar system.
My way of testing six batteries at once
I can battery too
Cordless drill conversion. Will this work?
New TankBot battery.
Going to be a busy few weeks
My diy 18650 Charger (more info in comments)
Received a defective power bank, got my money back and was told to keep the item. Decided to disassemble it and took out the 18650 cells (blue ones). Then attached a holder I had on hand. Not only I have a working power bank. Now also have an 18650 charger.
Make an 18Ah Milwaukee Battery out of a dead one. Huge but lasts forever!
I found the perfect case for a single, unprotected 18650.
I made a 18650 cell charger from an spare adapter, buck converter, current meter and a lot of tp4056 modules.
Check your local recyclers
I have other batteries besides the Ultrafire hazard, just don't want to use my nice ones on this.
New Arrival - Beautiful..
Testing out my new charger. A used telecom rectifier I converted now pumping 1300w/h into my 1.25kwh ebike pack!
Progress on the battery scavenging, got around 300 cells out of the 2000 needed for my EV build
Ryobi 40V battery pack died, yielding 15 cells (some questions)
My first battery pack. 7s14p
52v battery pack I made from recycled laptop batteries. I got all the cells for $14 at my local recycling center. They last all day with my escooter.
Do you trust mAh-ratings? They seem a bit inflated when you browse for cells or power packs.
I've got 420 high quality cells, a 3D printer, and a big table. What should I make?
I could use some input on my first battery pack
Thanks to everyone for the advice on rewrapping cells, just finished my first two. I'm grateful for your help!
Just got 10 LG MJ1 cells for £20. Any good diy power bank i should use?
18650 powered Stryfe Nerf gun
Ebike Battery Repairs Are Fun
Mods are asleep. Post non rechargeable alkaline batteries!
Old laptop batteries are sweet! Up to 12 good cells! Now I just want a better charger and I just got the sc2. $
1000wh 10s 12p e-bike battery from Laptop batteries I got from dumpster
Just got into this - first haul!
I bought this online and did not came with resistors? What do you guys use for accurate measurement results?
Built a 15p 6s battery using LG Gray 2600mAh cells. Why might the fully charged battery be almost 3 amp hours lower than my calculations? (Details in comments)
Proud of my first pack: 10p3s of recycled laptop batteries. 240Wh
My 18650 Bike Lights
18650 powered fan with onboard charging.
Freshly recycled from used laptop batteries, just need to clean them.
Tested and separated 18650 cells, ready to build a pack.
Ready to solder. Finally I decided to build 2X14S5P pack, because I only have 2 45A BMS, so probably they will do the balancing job. Together 20,6Ah, probably I can store in these over 1kWh of energy.
My first harvest!
Its alive! Thanks for the help peeps.
Philips healthcare li ion packs - help with figuring out connection.
Today’s yield 146 good and too 21 low of voltage - lots of Chinese
Tested my 18650 7s4p pack today. I know I need a different, safer box, but its GOOD!
2nd 13S6P 750wH battery complete!
Tip of My Cell - Need help identifying LiFePo4 Cell
Work for Next Couple Weeks
Introducing the 9000 MaH Sony PSP! No more awful batteries that don't hold charge!
Looks like an easy replacement!
Fits perfectly In a shot gun shell any ideas?
$10 at Rural King, 20,000mAh 18650 power bank with dual USB and LED light. They also have a $7 one with a wireless pad built into the casing.
First layer of 3
Menard's has a Sale, Get Up to Four 2200mAh cells for $1 each (After Rebate)
It's not quite as clean as the other stuff I see around here, but I converted a 9V battery powered laser thermometer to 2x18650 today
268 18650 Cell Today - 527 This Weekend
So the testing on all 100, 21700 cells begins.
Anyone know if this type of batt is salvageable?
Saw these puppies at Walmart this evening.
One of the most niche subs I've stumbled upon.. anyway here's my Surefire M600DF
18650 for USB rechargeable fan- suggestions?
Trying to determine battery type. Positive and negative on the same side.
25 Laptop Packs Yielded These
Are these non brand cells?
Would you still use it? Rewrap or tape and carry on?
Anyone seen this weirdness with Zanflare C4?
My collection of recycled 18650s so far
How do you sort/store your cells?
I just found a dell laptop battery with 6 of those LG babies inside. Last time used around 9 years ago. 2 bateries are at 0.2V Should i try to charge them outdoor or shouldn't i even bother. Another 2 batteries at 0.012V and 2 at 0.003V.
Only ikea. Cardboard 18650
Just get them for free from the dumpster
Today’s Yield- 200 Cells
Has anyone seen these before ?
Cells from an Aukey 20000mah powerbank.
I discovered 18650s about a month ago. Here's my current setup, lets see more workbenches here!
Just bought a 20 pack of Sony vtc6s. 66 bucks with free shipping from California to Maryland. Pic is one of them. How do i know they are authentic?
Hey im totally new to using 18650s but im using them in my senior project. senior project. I have 40 1400-1600mah batteries in a parallel and series combination and they are going to be hooked up to an xt60 connector. My main issue is that i have no clue how to charge all of them at once.Please help
Help identifying these cells. I think they are chinesium but want to know for sure. Info in comments.
Updated Better Storage For My 18650
Anyone familiar with these bootleg cells?
First time! Question in comments
Wired up 720 of these boys to make the fattest vape
Help identifying these cells
Made a 4 Bay Balance Capacity Charger for LifePo4 Cells
Today’s Yield 170 - Lots of Chinese :(
What are these cells that were paralleled to some 18650s in a laptop battery
Isnt salwater a way to safely dispose battery?
Bought this battery recently online. Is this a problem or is it safe to use?
Will These Traces be Big Enough?
18650 powered multitrack recorder! H4N + iStick TC200W in PowerBank mode
DIY 18650 XB1 controller
18650 & 18650 charger question in comments
Couple Red Flags.. 3800mah & Storage
So I’m guessing I shouldn’t replace these cells on the account of the cell fuses melting. Thinking about just building all new batteries?
Quick question again sorry. Are these ok? Or am I being paranoid. Samsung 30q 18650.
Small electric fence unit. Converted from 2xD (1.5) cells.
What power supply will i need for charger
Parallel Cells for my robotic belle
4s2p sony battery pack for quacopter 6000mah
Found this quite cheap but idk if they are worth anything
Safe to use?
Are these cells any good?
So, what am I looking at here?
Learning quickly these ultrafire 18650s are poop!. (800-1100mah vs 3000mah)
1200mah cell post results
Another thingy. $1 waterproof match case from Walmart.
Ordered some samsung 30Qs and got 32Qs?, are these fake?
Five-year-old TI nSpire CX CAS battery was driving me nuts. Replaced it with 3x18650 for 6x original rated capacity.
How much crud is tolerable?
[NCPD] XTAR PB2 2x18650 powerbank!
Do these Amazon 30Qs look legitimate?
Need help to identify these laptop pulls.
[help] Is the Lanbo 18650 single battery charger any good?