Got tired of my headset not lasting a whole day. So I made it better.3yr ⋅ Arrays_start_at_2 ⋅ r/18650masterrace
I converted my camera to run on hot-swappable 18650s with this handy dandy battery grip3yr ⋅ OllyFunkster ⋅ r/18650masterrace
Friend & neighbor works in tool sales, said he had a few dead packs for me.1yr ⋅ rossionq1 ⋅ r/18650masterrace
3-D printed snap battery holders for 18650/18350, 21700, 26800 (link to STL files in comments)1yr ⋅ spicy3d ⋅ r/18650masterrace
My first 18650 pack! What do you think of my Lexan hard shell idea?1yr ⋅ areslashcanoe ⋅ r/18650masterrace
Bike repair store got every 3 weeks this for me! 80% is used but good enough to use again😄11mo ⋅ Tokkiedekip ⋅ r/18650masterrace
Found out there are a bunch of old, dead laptop batteries at work that I can have. Time to see if these cells are any good.2yr ⋅ NetworkMachineBroke ⋅ r/18650masterrace
2,700 18650's from battery hookup auctions to go thru. 170 tested +32 on the chargers. Ammo can are the bad ones.1yr ⋅ wasilvers ⋅ r/18650masterrace
(news) Tesla receives 4680 battery cell samples from Panasonic ahead of mass production1yr ⋅ justsomescrub ⋅ r/18650masterrace
Hi all, what is the mystery blue wire in this old Anker power bank? Thanks4mo ⋅ CHROMEdge ⋅ r/18650masterrace
Left the multimeter on, it didn't have auto off function and drained the 9V battery. Good luck discharging these!2yr ⋅ TheBlacktom ⋅ r/18650masterrace
I've been working on this ruggedized 18650 based waterproof battery pack for a few months now, what do you think?4yr ⋅ AmpEater ⋅ r/18650masterrace
OpenCrank, the 18650, human-powered, open-hardware, fully-waterproof, electricity generator. It can power electronics in all off-grid scenarios and weather conditions. Get started: https://github.com/BeechatNetworkSystemsLtd/OpenCrank3yr ⋅ beechatadmin ⋅ r/18650masterrace
The current stock of untested battery packs. I have about 2000 cells outside of this pile that I am in the slow process of testing/splitting1yr ⋅ Tubekex ⋅ r/18650masterrace
Fire started coming out of the positive side of my 18650 while I was trying to remove it from the shield11mo ⋅ anandogs ⋅ r/18650masterrace
The size of BMS against the number of batteries make this a predictable end11mo ⋅ madjetey ⋅ r/18650masterrace
I posted this yesterday on Nitecore group. And after ~15 hours they just removed it3yr ⋅ RobotToaster44 ⋅ r/18650masterrace
Turned a product failure into an upgrade when the charging port on my pricey noise-cancelling headphones broke just out of warranty. I've doubled the battery capacity and disabled the swipe/touch controls (most hated feature) all at once!3yr ⋅ Durakone ⋅ r/18650masterrace
Mobile Laptop Workstation from Salvaged Laptop Batteries. Full Circle.4yr ⋅ THIEFintheNITE ⋅ r/18650masterrace
Fun discovery. An 18650 fits nicely in 3/4 copper pipe. Could be useful for something.4yr ⋅ RedSquirrelFtw ⋅ r/18650masterrace
Second version of the battery pack/holder now with a lod! NEVER GONNA DIE.3yr ⋅ TheSolderking ⋅ r/18650masterrace
you guys made fun of my battery lunchbox so heres another photo. totally safe. i only shorted and had an accident 3 times1yr ⋅ ibayibay1 ⋅ r/18650masterrace
Does anyone else use these little USB universal chargers in their bag? I have found they're really handy in a pinch.1yr ⋅ paperfett ⋅ r/18650masterrace
Hospital UPS Throwaways - Each unit contains 36 18650’s that range from dead to 2200mAh.4yr ⋅ Bobbillagain ⋅ r/18650masterrace
1S2P Battery Pack, vase mode 3D printed structure with slide-in slot for TP4056 & MT3608 boards3yr ⋅ zustock ⋅ r/18650masterrace
Old Nexus 5x that I use to show exterior camera feeds via Tinycampro would never hold a #$+&ing charge while in use. Replaced internal battery with 18650 UPS.3yr ⋅ zustock ⋅ r/18650masterrace
Follow up to last post. 623 18650 cells for my upcoming electric trike project2yr ⋅ astonishedplant ⋅ r/18650masterrace
Rebuilt this Jaws of Life battery today for a local fire department 💪4yr ⋅ goeielewe ⋅ r/18650masterrace
After a few months of work, here is my 5KWh battery to be used as a power wall for a Solar system!3yr ⋅ FricPT ⋅ r/18650masterrace
Terminal Lug Crimping Tool...so cheap there’s no excuse to solder large gauge battery terminals11mo ⋅ Embarrassed-League38 ⋅ r/18650masterrace
Bought 4 of these for the fun of it, 4 of them weigh less than a genuine 18650 cell. I'm surprised if these actually get to 1000mah1yr ⋅ Lolipoliceboy ⋅ r/18650masterrace
Almost finished this colossal, 90% recycled 20p power bank with bidirectional fast charge modules.3yr ⋅ HIVVIH ⋅ r/18650masterrace
Got a bit creative and 3d printed this case for a dual 18650 battery pack for xbox one controllers.3yr ⋅ TheSolderking ⋅ r/18650masterrace
Why does this get me so excited?.18v power wheels battery begins.2yr ⋅ borninperfect ⋅ r/18650masterrace
I have 45 perfectly good 18650 cells, never done diy projects. What should I do.10mo ⋅ synth_mania ⋅ r/18650masterrace
12p 10s out of 20. Will be connecting the other half probably day after tomorrow.11mo ⋅ Mental-Text4159 ⋅ r/18650masterrace
a little something I've been working on they are all samsung icr 22p's1yr ⋅ neoben00 ⋅ r/18650masterrace
Bye-bye dead Ni-Cd, it's time for the Li-Ion. 14,4Wh to 40Wh upgrade also.3yr ⋅ TheBlacktom ⋅ r/18650masterrace
I'm building a laptop car. With 45s battery pack. I need help with the bms setup please.4yr ⋅ squidling_pie ⋅ r/18650masterrace
Amazon seller trying to sell 5.2A cells as 15A ones! And people in the reviews are using these for vapes...2yr ⋅ high_enthalpy_girl ⋅ r/18650masterrace
How does an 18650 go bad with only a couple uses in a flashlight (D4V2) and what do you guys do with the bad battery's?1yr ⋅ sargent43 ⋅ r/18650masterrace
When you don't have a proper discharger. 3 incandescent bulbs and charging my 18650 power bank.3yr ⋅ HIVVIH ⋅ r/18650masterrace
homemade battery packs. 100 cells in one lunch box. u go scrap cells then combine and then you make one big battery. will take my fatass on ebike: 30 miles1yr ⋅ ibayibay1 ⋅ r/18650masterrace
I'm building some 18650 packs. 10S5P, 50 cells each. Low capacity cells, but also extremely cheap. I will use them in a PV system.3yr ⋅ FricPT ⋅ r/18650masterrace
Wow. Just browsing AliExpress for a BMS and stumbled across these. The scourge of 18650 DIY packs. Why even make these, surely cheaper to run a tin strip2yr ⋅ Daedaluu5 ⋅ r/18650masterrace
How do you determine if a 18650 battery is suitable for a high-power flashlight? Other than mAh, charge/discharge rate & voltage, what are other parameters that I need to verify?1yr ⋅ 1DonBot ⋅ r/18650masterrace
Last haul from the landfill battery bin, all taken from Dyson batteries showing 0 volts at terminal2yr ⋅ mingilator ⋅ r/18650masterrace
In addition to my previous post about these cells: they measured at roughly 340mah each. At least they were free :)1yr ⋅ Lolipoliceboy ⋅ r/18650masterrace
I put this spot welder together. But does not fire. Was looking for help if possible!3yr ⋅ hupo224 ⋅ r/18650masterrace
Our high school gets pallets of old laptops from the surrounding districts to mess with, and you know what that means!4yr ⋅ KingPanzerVIII ⋅ r/18650masterrace
When your fancy samsung powerbot vacuum BMS dies, time for a powerbank!3yr ⋅ thezapman420 ⋅ r/18650masterrace
Saving a dead Powerpack 400. Pack voltage was 1.5V as the water damaged BMS over discharged it. Now resurrecting it one cell at a time 😃2yr ⋅ dj_ordje ⋅ r/18650masterrace
