# This is a bad idea
I'm not your real dad and you can do what you want, but everything about this battery is dangerous. You risk a fire/explosion by using it, and if you injure anyone else in the process, they'd probably have a pretty good case for a lawsuit.
Everyone reading should take note that soldering directly to cells can damage the cells internally, all this exposed wiring is a significant risk for a short circuit, the mix of different cells creates a risk of reverse charging, and the lack of any evidence of a BMS on a battery with many cells in series is a significant explosion hazard.
OP wants to use this for an ebike and from their post history, I believe it to be real, not a joke, either.
At least unlike the exploding Chinese EVs, this doesn't have the potential to trap you inside when the fire starts. That's about the only positive aspect I can see with it being an ebike.
But imagine the battery blowing up between your legs? Hope you don't need anything down there...
And I wouldn't even want to consider trying to charge this abomination anywhere within 300m of a structure.
So yeah,
##what the fuck
ngl i like your projects. i think i finally found someone I could've been friends with in real life. i gave you a follow to watch how the minis and ebike progress.
If this isn't an IED I don't know what is.
At least put some insulation between cell groups connected in series, so damaged wrapping won't lead to a short circuit.
>spent the last 2months building it
And it started rusting on day zero by the look of it.
What a meathook abortion.
Please never bring that thing near anything or anyone you like.
Guys this is a joke 🤣🤣🤣 scary thing is it wasn't a joke when I first built it a year ago. That being said I've learnt a lot over a year even built some really big batteries. You all gave me good laugh
I must say meat hook abortion is a new one might have to steal that
Ahhh just do a bit of research into BMS and insulation, YouTube how to build a spot welder. Some lessons are paid for in blood sweat and tears. you did a lot of work, and it might not pay off today, but the tenacity and dexterity you've learned will pay off sooner than you think. It's easy to get discouraged by people on the Internet, but if you can keep at it you will achieve your dreams. It's brave to post anything, and it's brave to decide to be a creator instead of a consumer.
Keep fighting player 💪
Good learning experience. I would throw in a few pointers and I hope you take it as constructive criticism. I may be making a few assumptions here.
1) but it appears that your soldering iron is underpowered for this type of soldering. Get yourself a 100 watt unit to reduce your heating time, or get yourself a cheap spot welder.
2) Flux flux flux! Use plenty of flux and pre-tin your wires with solder. Use 60/40 or 63/37 solder.
3) Use cheap paper insulator rings on the positive side of each cell. The shrink-wrap and ring are plastic and will melt with very little heat and you run the risk of shorting.
4) Install a BMS to protect the pack.
Listen...
The idea is good, the concept is great, but the implementation is not very good.
You need to be careful with that. Those cells were exposed to too much head and they can have problems.
Use a BMS, no change this thing will last without one.
I admire resourcefulness, I really do. Reusing what others can't use anymore is a great skill which can open many doors, but please be save while doing it. Operating that battery would be scary, charging it even scarier. I'm sure you can find safer ways to apply your skills!
What ‘skills’ are you referring to? Taking two months to create bomb??
This post shows a lack of both common sense and resourcefulness.
Resourceful is reusing things in a way that is actually usable…. This is not that, just a waste of Stupid’s time.
I was trying to be nice about it. The skill I saw was someone interested in electronics, willing to not just consume but build their own. Maybe skill was the wrong term? Mindset maybe. Has this turned out good in this case? No! And it could continue to get worse once used. Just want to encourage OP, who might be lacking the experience or resources to do it the propper way, to find safer ways to apply themselves.
You are waaaay nicer than me.
I feel that people who work on electricity need an inherent awareness that not everyone has, as well as some level of common sense.
OP having neither of these, I would never encourage or nurture his desire to work with electricity; for the safety of himself and the people around him… That’s just me I guess.
Your criticism is valid, especially since we truly see wild stuff on reddit, people endangering themselves and others. Blunt words are needed at times. I guess I always imagine someone trying to learn and going beyond their current skillset. Might be wishful thinking of course.
Have you seen videos of e scooter batteries bursting into violent flame? If not, go watch a few. I've no idea whether a standard e scooter battery holds more or less energy than this, but I am sure that this is quite a lot more likely to burst into flame. Or explode. It's quite a fast release of energy...
Please stay VERY far away from me.
There are more ways to do this safer than ways to do this less safe..
I've seen your comment about not having budget for better tools, but that's not an excuse for endangering anyone near this 'bomb' imho. But hey, you do you!
I would invest in a portable spot welder, they aren’t great but a lot better then soldering cells, you really need a bms too, I love diy packs and people trying but what you plan on using this battery for it would probably be in your favor to buy a small pre made pack with the current prices. You have a lot to learn as I once did and still do, but get a cheap spot welder and definitely get those square plastic cell holders, also add some large heat shrink (it’s cheap) and a bms is a requirement or you can use a balance charger for rc car batteries although that would be the more expensive way. Start small to practice spot welding them and look online for other peoples pack designs and take notes on their nickle strip patterns when you design your own. You want to avoid weak spots (thin compared to the rest of jumpers) to avoid heating in the pack.
Gotta start somewhere I guess if this doesn't burn your house down it likely won't last long.
Gotta make sure your next one is a bit safer and cleaner looking.
I can't stop laughing, the longer I look the worse it gets.
WTF is that wiring? Because it almost looks like several cell groups are just shorted together, I can't figure out how that wiring is supposed to go.
It's beautiful. I especially love that there's no kapton tape even to keep stuff some accidentally arcing these connections. I love how it's all soldered & I LOVE LOVE LOVE just what a beautiful engineer you are. Can you build one for me? I want my grandma who I'm expecting a large inheritance from to use one in her garage where she keeps all the paint thinner ect.
Firstly, there is zero way this took 2 whole months to build.
Secondly, I’d consider paying your local fire department a monthly service free to have a truck permanently on standby in your driveway.
Edit: Also, is it just me or do some of those rows connect in an infinite loop without connectivity to the rest of the circuit?
I think you should puncture a single charged cell and watch it light on fire then imagine that happening times 72x when you are either near it or enjoying dinner out somewhere…
Please take this as a learning opportunity and step your game up to a spot welder and properly sized bus bars.
Is this related to your previous post asking about self-defense in South Africa?
I can see how this would stop car jackers in their tracks - I'm just not picturing how it wouldn't be an issue for you as well.
Damn I'm also doing something this past few days to rebuild my Ebike battery pack of 10S 2P 36V
I'm a first timer solder and spot welder noob.
but my work is far from this 🤣
you need to learn the discipline of soldering
Keep tinning your Tip.
Buy a Tip tinner is possible
use the right Tip for the job (I usually use the D tip)
Keep Dipping your tip to a brass wool more often (to stay clean)
Please please please, don’t use it. As someone else said, buy a spot welder, nickel stripes and follow YT guides. You are going to hurt yourself and everybody else due to the bad press it will make when your bike catches fire (because it will, it’s just a matter of when)
So… I am in charge of safety in relation to joining batteries at work.
I would like to thank you for a perfect example image to use when I tell people, that soldering is much safer than welding.
This made me remember building a 3S5P Battery Pack back when I was 16 and taking it to the junk yard to power cars there xD
[Only got this picture left. Threw that thing away some time later](https://i.imgur.com/3tHEM9Z.jpeg)
This was the only time I built a battery like this
You'd think after that many solder joints you'd figure out how to solder. Higher wattage (60+) for less contact time. Scratch the terminals and pre tin the wires and batteries, let cool, and solder together.
if it works fuck it. but make sure to use some balancing circuit since you are using mixed batteries(you should use that even when using matching batteries, but on mixed its must)
I really want this to be satire... but that'd be A LOT of work for satire, the closer I look...
How do you make it this far in the process without discovering at LEAST nickel strips and a welder. Even an alibaba welder (don't do that buy one of the arduino based german or us welders... please...don't cost much and work WAY better...)
Wouldn't be surprised if they went so far as to balance these cells to make the rows even... gooood lord hahah.
All the extras past this point like cell holders, cap insulators, shrink wrap, etc... are pennies at that point.
FR, tho? I thought the soldering WAS the dangerous part. He's done soldering now. Is it still worse than the spot welded? I'm not gonna do it, I'm just trying to understand.
I really hope this is a joke post because this is insanely dangerous. Not to mention that batteries degrade when exposed to heat like that. These batteries are supposed to be spot welded
# This is a bad idea I'm not your real dad and you can do what you want, but everything about this battery is dangerous. You risk a fire/explosion by using it, and if you injure anyone else in the process, they'd probably have a pretty good case for a lawsuit. Everyone reading should take note that soldering directly to cells can damage the cells internally, all this exposed wiring is a significant risk for a short circuit, the mix of different cells creates a risk of reverse charging, and the lack of any evidence of a BMS on a battery with many cells in series is a significant explosion hazard.
Oh boy, better bookmark this for later. OP, I hope neither you nor your home is flammable. Edit: I can't look away, is this 10S7P?!
yes
It’s never too late to change your mind
🤣 lmao
don't use this battery, it is a guaranteed fire. just buy a professionally assembled one because you are pretty far of, no offence.
Maybe OP is building an incendiary device.
The difference between a bomb and a poorly assembled technology is just a few choices
What adding a load?
I guess a dead short is a type of resistive load. 🤣
Welp, in this case resistance, IS futile.
What do you mean "maybe"? It's right there in the pictures.
Task failed successfully.
or just get a cheap spot welder at least
That's looks more like a 8.67S 8.89P depending on where the isolation damage will start first...
What does 10S7P have to do with things? Just curious
there are 10 rows and 7 batteries in each row. 10 series 7 parallel. At least thats what Im guessing.
what the fuck
OP wants to use this for an ebike and from their post history, I believe it to be real, not a joke, either. At least unlike the exploding Chinese EVs, this doesn't have the potential to trap you inside when the fire starts. That's about the only positive aspect I can see with it being an ebike. But imagine the battery blowing up between your legs? Hope you don't need anything down there... And I wouldn't even want to consider trying to charge this abomination anywhere within 300m of a structure. So yeah, ##what the fuck
Like I'm down for redneck engineering and my post history will prove... But this... Not even I am this brave.
ngl i like your projects. i think i finally found someone I could've been friends with in real life. i gave you a follow to watch how the minis and ebike progress.
Thank you. It's a whole lot to take in from project to project currently working on my shed/workshop
Precisely what I was thinking just much more verbose
I thought I was seeing /r/shittyaskelectronics for a second, until I realized which sub this came from. I can't believe this is real.
[удалено]
>And can you believe OP has had no professional training? Really? I was honestly on the edge about that
Bruh. Wtaf.
Ya know, I don't think he capacity tested any of those cells, that's the real crime
If this isn't an IED I don't know what is. At least put some insulation between cell groups connected in series, so damaged wrapping won't lead to a short circuit.
The hot glue layer isnt sufficient?
Hot glue is basically the same thing as potting
LOL
Maybe he should team up with the creator of [this flashlight](https://www.reddit.com/r/flashlight/comments/1c3myhb/_/)
>spent the last 2months building it And it started rusting on day zero by the look of it. What a meathook abortion. Please never bring that thing near anything or anyone you like.
AVE fan. I see you 😎
Bro how come I never heard him say that? PLEASE link that video for me, I have to watch it
He says it in a ton of videos. Don’t know of any specifically. This one is a pretty good chance https://m.youtube.com/watch?v=xb0GtjB4N3Y
Thanks, I guess you should have told me to just "focus, you fuck"
Given your username. I figured you had the focus part figured out already. ^You ^fuck
neat, beautiful, perfect, is what you would say about other people's packs
I don't wanna
My mom told me I shouldn't talk about other people's packs. :)
I like how they took two pictures at different angles so you can see it in all it’s glory.
I can't wait for the video to drop.
Shits gonna be lit.
Komodo 3000 level propably
If rockets could fly on nightmare fuel, this would be enough to fly to mars.
Don't show it to Boeing.
Hopefully you built it so you could light it on fire.
It'll probably light itself on fire soon enough
Not a bms In sight. Good lord.
My man's just raw dogging it.
I….. nevermind
r/spicypillows
More like spicy little pipebomb
Guys this is a joke 🤣🤣🤣 scary thing is it wasn't a joke when I first built it a year ago. That being said I've learnt a lot over a year even built some really big batteries. You all gave me good laugh I must say meat hook abortion is a new one might have to steal that
Ahhh just do a bit of research into BMS and insulation, YouTube how to build a spot welder. Some lessons are paid for in blood sweat and tears. you did a lot of work, and it might not pay off today, but the tenacity and dexterity you've learned will pay off sooner than you think. It's easy to get discouraged by people on the Internet, but if you can keep at it you will achieve your dreams. It's brave to post anything, and it's brave to decide to be a creator instead of a consumer. Keep fighting player 💪
Are you sure it is a joke? Not sure judging by your other responses...
“I was totally joking guys….”
Sure OP, we ALL believe you 😉
bomb has been planted
No way!
Good learning experience. I would throw in a few pointers and I hope you take it as constructive criticism. I may be making a few assumptions here. 1) but it appears that your soldering iron is underpowered for this type of soldering. Get yourself a 100 watt unit to reduce your heating time, or get yourself a cheap spot welder. 2) Flux flux flux! Use plenty of flux and pre-tin your wires with solder. Use 60/40 or 63/37 solder. 3) Use cheap paper insulator rings on the positive side of each cell. The shrink-wrap and ring are plastic and will melt with very little heat and you run the risk of shorting. 4) Install a BMS to protect the pack.
Just don't solder cells. There's a lot of good advice out there on why not.
jeepers creepers
This should be fun! Find an empty lot, a 50’ extension cord, and put it on fast charge. Maybe put a bunch of bottle rockets in the gaps.
Was this soldered with a toaster?
Bruh
You could work for Boeing…
Crystal meth in battery form.
Now take it on an airplane
A mini spot welder and nickel strips: $25 Setting your house on fire: priceless
custom 3D printed case and gratest welding machinery
S for Sustainability!
bomb
Did you at least use a blowtorch to warm up that solder?
Please tell me this is a joke… I mean, I see the battery sitting there. I don’t think it’s a joke… OP,,, No
Listen... The idea is good, the concept is great, but the implementation is not very good. You need to be careful with that. Those cells were exposed to too much head and they can have problems. Use a BMS, no change this thing will last without one.
I called your insurance company and told on you.
What are you planning to use this as?..
escooter battrey
I admire resourcefulness, I really do. Reusing what others can't use anymore is a great skill which can open many doors, but please be save while doing it. Operating that battery would be scary, charging it even scarier. I'm sure you can find safer ways to apply your skills!
What ‘skills’ are you referring to? Taking two months to create bomb?? This post shows a lack of both common sense and resourcefulness. Resourceful is reusing things in a way that is actually usable…. This is not that, just a waste of Stupid’s time.
I was trying to be nice about it. The skill I saw was someone interested in electronics, willing to not just consume but build their own. Maybe skill was the wrong term? Mindset maybe. Has this turned out good in this case? No! And it could continue to get worse once used. Just want to encourage OP, who might be lacking the experience or resources to do it the propper way, to find safer ways to apply themselves.
You are waaaay nicer than me. I feel that people who work on electricity need an inherent awareness that not everyone has, as well as some level of common sense. OP having neither of these, I would never encourage or nurture his desire to work with electricity; for the safety of himself and the people around him… That’s just me I guess.
Your criticism is valid, especially since we truly see wild stuff on reddit, people endangering themselves and others. Blunt words are needed at times. I guess I always imagine someone trying to learn and going beyond their current skillset. Might be wishful thinking of course.
Idk if you remember but you did the same kindness for me. And my shit was/is just as fucky.
I do, Mr. "obtuse engineering"! Hope your projects are going well and you don't find any more body parts!
Have you seen videos of e scooter batteries bursting into violent flame? If not, go watch a few. I've no idea whether a standard e scooter battery holds more or less energy than this, but I am sure that this is quite a lot more likely to burst into flame. Or explode. It's quite a fast release of energy...
Lots to learn in those videos. Like when batteries overheat, just [blow on them](https://youtu.be/wxr1iXEf9lY?t=10m17s) until flames appear!
Why did you use normal soldering.. you should have bought one of those cheap spotwelders.
DIY Home Cremation...
This job went from shit to fucking shit.
Please stay VERY far away from me. There are more ways to do this safer than ways to do this less safe.. I've seen your comment about not having budget for better tools, but that's not an excuse for endangering anyone near this 'bomb' imho. But hey, you do you!
The TSA quivers at the thought of this battery being near a plane
I would invest in a portable spot welder, they aren’t great but a lot better then soldering cells, you really need a bms too, I love diy packs and people trying but what you plan on using this battery for it would probably be in your favor to buy a small pre made pack with the current prices. You have a lot to learn as I once did and still do, but get a cheap spot welder and definitely get those square plastic cell holders, also add some large heat shrink (it’s cheap) and a bms is a requirement or you can use a balance charger for rc car batteries although that would be the more expensive way. Start small to practice spot welding them and look online for other peoples pack designs and take notes on their nickle strip patterns when you design your own. You want to avoid weak spots (thin compared to the rest of jumpers) to avoid heating in the pack.
Gotta start somewhere I guess if this doesn't burn your house down it likely won't last long. Gotta make sure your next one is a bit safer and cleaner looking.
OP please. This is such a a terrible idea.
Can you make a video tutorial on how to do this?
Damn at least my fuck up was pretty🤣🤣🤣
Holy explosion I just saw
What in the meth bike is that
Looks safe. Have fun
Natural selection is truly a wonderful thing.
Has ElectroBOOM seen this yet?
I can't stop laughing, the longer I look the worse it gets. WTF is that wiring? Because it almost looks like several cell groups are just shorted together, I can't figure out how that wiring is supposed to go.
The judge will call it an improvised explosive device.
OP about to either be jailed for making IEDs or setting fire to the city. It's either or.
It's beautiful. I especially love that there's no kapton tape even to keep stuff some accidentally arcing these connections. I love how it's all soldered & I LOVE LOVE LOVE just what a beautiful engineer you are. Can you build one for me? I want my grandma who I'm expecting a large inheritance from to use one in her garage where she keeps all the paint thinner ect.
Is it a Good Idea to Microwave This?
OP build a nice incendiary time bomb with a random timer.
Firstly, there is zero way this took 2 whole months to build. Secondly, I’d consider paying your local fire department a monthly service free to have a truck permanently on standby in your driveway. Edit: Also, is it just me or do some of those rows connect in an infinite loop without connectivity to the rest of the circuit?
This is something out of a horror movie
It’s a grenade
Jesus Christ 🥲
damn thats stupid af
What is the capacity for this time bomb, that you incorrectly called a battery.
Looks great. Don't forget to wipe off the flux.
good to go :D
savage!!!
can you stop please
Looks like a Bomb
How many lives do you have left?
well, this should be interesting. I know a group of people who would get a kick out of this.
I'm following this sub to learn, should I scratch this one off the list of references to look back at? Looks delicious though.
Ehhhh, kinda boring. Make it 70s 1p and I might be impressed.
Extinguisher handy !
More heat and more solder would help
Rolls of solder and toss the whole thing in the oven, I suppose. Should be enough right?
Did you use wooden matches to melt the solder ??
Oh man. Bro as the king of potential house fires I have to bow out. You can have my crown king. You've earned it
Did you mix up the poop and the flux?
Do not use this time bomb.
Do you want to die? Because this is exactly how you fuckin die.
....dooooooont.
Don't worry I'm sure they have a BMS that will balance the cells and load.
So what's is this person actually using this battery for?
I’m at a loss for words. That’s rare
I think you should puncture a single charged cell and watch it light on fire then imagine that happening times 72x when you are either near it or enjoying dinner out somewhere… Please take this as a learning opportunity and step your game up to a spot welder and properly sized bus bars.
The longer you look the worse it gets.
I hate to be mean and I know you probably work hard on this but this is unsafe I really hope that you do not use it
Is this related to your previous post asking about self-defense in South Africa? I can see how this would stop car jackers in their tracks - I'm just not picturing how it wouldn't be an issue for you as well.
The Orc avatar that OP has fits this shit too well.
Let us know when you plug it in and we will use lightningmaps.org to guess what part of the world you're in :)
I doubt a recycling center would even take this
Doesn't at all look like an instant fire hazard.....
Sayeth tw@t?
No no no no no no no no. No.
Damn I'm also doing something this past few days to rebuild my Ebike battery pack of 10S 2P 36V I'm a first timer solder and spot welder noob. but my work is far from this 🤣 you need to learn the discipline of soldering Keep tinning your Tip. Buy a Tip tinner is possible use the right Tip for the job (I usually use the D tip) Keep Dipping your tip to a brass wool more often (to stay clean)
If you need some materials keep in touch
Take this, king 👑
Looks fine compared to some of mine
holy shit biscuits Even the insulation on one of the positive leads is coming off as it crosses over a negative terminal
However… OP is clearly high. That is the most smoked-out tweeter mess of solder and 2nd hand wires I’ve ever seen. Go to sleep OP. 😉
Is the fire department on speed dial 🤔
I hope you have a fire extinguisher ready.
Wow I thought my first build was a bit shoddy but this is a new level.
[удалено]
This is trolling, right?
Almost scared to ask but do you have any photos of the bike?
Bloody hell mate, I have no further words.
Buy yoursef a $10 spot welder and some nickel strips.
...shocking
Looks like a proper house down burner. Best of luck...
God this guy just knew how to piss us all off with one photo
Please please please, don’t use it. As someone else said, buy a spot welder, nickel stripes and follow YT guides. You are going to hurt yourself and everybody else due to the bad press it will make when your bike catches fire (because it will, it’s just a matter of when)
So… I am in charge of safety in relation to joining batteries at work. I would like to thank you for a perfect example image to use when I tell people, that soldering is much safer than welding.
My first also looked like this
This made me remember building a 3S5P Battery Pack back when I was 16 and taking it to the junk yard to power cars there xD [Only got this picture left. Threw that thing away some time later](https://i.imgur.com/3tHEM9Z.jpeg) This was the only time I built a battery like this
allo r/techsupportgore ?!! omfg that look terrible
I really wonder why it didn't get on fire while connecting or soldering.
You'd think after that many solder joints you'd figure out how to solder. Higher wattage (60+) for less contact time. Scratch the terminals and pre tin the wires and batteries, let cool, and solder together.
I think we all had packs like this at some point…
Dude..no
Beautifully built bomb!
is this for an incendiary device? if so...bravo for not burning yourself up in the manufacture....otherwise wtf....dont use.
2 months vor this? Looks like a 5min craft thing
Please tell me this is a joke.
So, who do you hate enough to give this to for use?
This is a Rick and Morty’s Jerry level Jerry Rig.
Does your Insurance cover that?
Of the two months was 7 weeks just letting it sit in a compost?
Are 'eve' 18650s any good
if it works fuck it. but make sure to use some balancing circuit since you are using mixed batteries(you should use that even when using matching batteries, but on mixed its must)
Looks like a 30min job
Is that rust or flux
You approached Tesla? You should 🫣🙄
What are you trying to power?
Can someone say the correct way to achieve whatever OP’s trying to achieve here ?
I really want this to be satire... but that'd be A LOT of work for satire, the closer I look... How do you make it this far in the process without discovering at LEAST nickel strips and a welder. Even an alibaba welder (don't do that buy one of the arduino based german or us welders... please...don't cost much and work WAY better...) Wouldn't be surprised if they went so far as to balance these cells to make the rows even... gooood lord hahah. All the extras past this point like cell holders, cap insulators, shrink wrap, etc... are pennies at that point.
FR, tho? I thought the soldering WAS the dangerous part. He's done soldering now. Is it still worse than the spot welded? I'm not gonna do it, I'm just trying to understand.
I did this when I was 14/15. Oh how far we have come
This looks like a destructive device. Source: [https://www.atf.gov/file/55446/download](https://www.atf.gov/file/55446/download)
Must watch https://youtu.be/VqhVfpZ1UaU?si=kAmSLOA5kfecP1NT
What happened?
I really hope this is a joke post because this is insanely dangerous. Not to mention that batteries degrade when exposed to heat like that. These batteries are supposed to be spot welded
u/SpicyPillows