Great idea, would like to mention when having a second battery in the box, place a piece of plastic where the terminals could touch the case. This will stop the spare battery from shorting out and going flat. A great project.
why woul not short it? i mean, yeah theres a protective layer i'm sure, but the way he placed that spare battery is a tight fit, and you know when you rub 2 metal surfaces one to another, it will scratch the surface resulting in the can may loose its protective layer -if any- and will short it.. not immediatly, maybe never, but if you constantly changing the batteries, it may happen
I have already made a iphone charger similar to this on my own...but your makeshift nine volt connector is going to save me money and time..i am in desperate need of one. awesome
Thanks for the video! I built one this morning, and I am wondering if you conected the second battery in parallel to increase the current, would that be able to take advantage of the "fast charge" option many newer phones have?
Roman, I am a fan from Costa Rica. I appreciate your videos very much. It amazes me to think how you come up with the tutorials and how your mind works. Thanks again and keep on making more stuff. :-)
+J&M I agree and it could be a fire hazard to try and make one. I guess people could try it but they shouldn't be surprised when they burn down there house 🔥
a 9 v battery has only ~400 mah. This wont even charge modern phones half way up. It better to just use the car charger and go get either 2 6v lamp batteries (i know those thinks are huge) or just take 6 AA batteries. There are even some 12v batteries for remote controlled cars that are rechargeable and will charge your phone up more than just two times
You bring creativity to an entirely new level. I've jimmy rigged a lot of things in my life but not once have I ever actually considered using a 9v battery to make a 9v battery cap lol
Is it just me that noticed that it looks like he shorted out the second 9-volt battery when he put it in. Looks like both terminals may have touched that metal box???
Thank you....Helped me a lot....u could have bought the terminals separately instead of just breaking it from the 9v battery....The video was Helpful 👏
A spare battery in the box!!! what a great idea! BUT. If you do not put anything non conductive on your battery poles, they are going to stay in contact with the metal of the box and even in a few days you may have a surprise when you wish to use it! good luck!
I really think the point of this, is a project video, for the fun of the project honestly. Very valid point that it's more practical to just buy a commercial powershot.
i like because u have explained every thing with clarity voice and names of each and every item please carrt on.......... the same thing and one more suggestion pls or explain contents before you show any video it looks so good...........
Couldn't you connect the second battery in parallel? Also, if the car charger desires 12V, would it be more efficient to offer it the series combination of 18V or starve it with 9V? Cool video, I especially liked what you did with the through-hole soldering. Thank you.
it depends on the exact ic on the board. if the IC can handle 18V, i would say that its more efficient, especially because you can discharge the batteries much further and the voltage is still sufficient to power your charger
You can connect two batteries in parallel in a car, but it requires a diode between to bias them in one direction (or relay or "battery isolator"). If you don't, while the circuit is unpowered the batteries will kill one another trying to charge each other in a sort of resonant circuit; dissipating the energy through the internal resistances and connections. I imagine you could do the same thing by salvaging a schottsky diode from just about anything and putting it between the two 9Vs thus giving you nearly twice the energy at the same 9V.
good ideal.. one thing if someone hasnt said it.. insulate the spare battery slot so the top of the battery dont short out an cause a fire or something..
+Kali's Gaming i was thinking that. Its cool and everything but its cheaper to buy the proper thing from the store. Here you need to buy the soldering equipment batteries glue gun and then spend time making it. Its a cool lil project but nah i see these make your own thing videos and be like ill watch and admire your work.
These stuffs are very great for remote areas without electricity. Where your powerbanks cant be charged after depletion.So long you have AA batteries you are good.
Nice job but...you need to insulate the extra battery. when you store it inside the "metal" container you immediately shorted the battery and can start a fire.
Not if you have a 5 volt regulator but most car chargers already regulate the voltage to 5 volts So no it’s not dangerous just don’t short circuit the battery
hi roman i love all your video but unfortunately i can't make some because I don't have money and my mother won't let but I'll try to keep up watching your videos much love from fanss
I wouldve done a parallel connection with two 9VDC batteries to double up the ampere hours rather than have the battery free float in the case not to mention the terminals are brushing up against the side shorting it out.
Charge your phone 100% and reach your destination, take some time and make a new charger at your current location. Follow it or else buy a 10000 mah powerbank. Never try to even take it through the security check in. It would be a serious problem on your end. Because these wiring and cabling on small scale self made devices are strictly prohibited.
9v batteries have lower capacity (about 800-900mAh afaik) than most cell phone batteries, so they will charge your cell phone up to 30-40% and keep it alive few more hours. I would use pack of 6x1.5 v batteries for such DIY charger, alkaline ones have capacity up to 2400 - 2600mAh , which allows you to completely charge most of average and popular cell phones. I can't remember exactly , what voltage is needed for LM317 to work normally, probably pack of 4x1.5v will also work.
Warning! Your Phone has a Maxinum Voltage of 3.7V - 3.8V And your Original Charger is a Output Voltage of 5V Your Powerbank is a Charging Voltage of 9V Its Nice. The Your Phone charge up faster, but it may happen that your Phone Battery may [ LEAK, EXPLODE ] because its overcharge at a High Voltage. I Recomanded you to just buy Real POWERBANK for $1 - $3 in any Shops. You can also buy anything you want. You can also make this PowerBank in your House but your Battery must be in a Low Voltage of 5V I am telling you for your SAFETY. Thank You!
+Dejan Brice Step down amp? There are actual stories of phones exploding from circuits such as these, plus the phones don't actually charge from this, despite the voltage input. The thing is, the amperage going into the phone isn't enough to charge it, and would result in a excessive buildup in voltage and in return ruin your phone. Because car chargers usually always have an input of 12v and a decent amperage, the circuit is built to handle THAT and only that amount of wattage input.
I apperetiate it man but why is the circuit for ? It is for converting 12 to 5 or 4 volts the car gives an out put of 12 volts the circuit in the carger converts it to 5 or smothing thats y roman used the circuit and iphone and any other smart phone when dectects an overvoltage and undervoltage it disconnects the charger immediatly by itself
Seems like a fun project to do as a proof-of-concept, but nothing you should use on a regular basis. Thing is, the cheaper you make it and the less experienced you are, the more that can go really wrong. I'm not saying that you shouldn't try it though. When you want to try this, I'd recommend having a bit of basic electrical knowledge, unlike some other people in the comments.
Then this is completely useless. I`ll be going through the 9V like freshly baked bread. And they`re not rechargeable, so that makes it suck even more. I`d just use a boost converter and a 2000mAh 3.7V rechargeable battery and the end game will be much more feasible
is a good idea. I do worry about the charger being designed for 12 volt auto and you are using 9v battery. I wonder if the charger works to its best. I would like to built something like this but have a rechargeable 9v and be able to recharge. The only thing I will question is whether is practical. After reading the milli amp capacity of 9v batteries I find it's like 500 milli amps, that is not very useful for charging a cell phone. Use AA batteries with high milli amp rating to build a better charger.
Damn man u are genious m defenitely donna make one for myself not because of money problem but because of it uses battries instead of charging it up thats a cool thing
its really cool and i love it but i would like to make it one step further like recharging the battery not changing all the time it will be really boring and expensive
9volt is an over voltage and a risk to device or that metal box the fact that even works is kind of surprising yet it's believable maybe because the cheap car charger take me to run off 12 volt and convert it to 5 volts what is really cheap car chargers will only give you something less than half an amp so if you have anything modern it won't even charge it
I liked most of your hacks. But one suggestion for you and benefit of all. Try using Personal Protective Device such as Safety Goggles, Leather Gloves etc while recording your video. It will prevent injury to you and some of your fans on planet earth at least!
The spare battery if it’s sitting in that tin it will touch the medal and will connect and drain or short a circuit so I wrap the top in electrical tape
i would like to add a " " "CAUTION" " " to this video. 9 volt batteries are powerful enough to start a fire if left in a dead short condition. putting a 9v battery in the storage position inside of a metal tin as shown in the video is asking for trouble unless the batteries contacts are sufficiently insulated from the metal of the tin case. if the batteries contact points were to come in contact with the tin surface and create a short across the battery, it will cause the tin and battery to become extremely hot, this could lead to burns and or fire, or even rupturing of the battery itself. make sure you take the necessary precautions when putting a battery in a metal container. or storing them with metal items.
That's a seems like a copius amount of work and materials for more than it would cost to buy it. I understand it's probably a fun project while making a small scale Tesla coil is fun too and may give you more power less material
Cool project to do for fun, but not for real life use. $9.99 you can get a pretty decent portable charger without the worries of short circuiting your phone or the charger for that matter.
How about a battery pack to power a small digital projector (12V/25Amp), since phone battery charger packs don't provide enough power to operate a small portable projector. Likely an old large torch battery or small marine battery should work fine.
In my opinion this circuit it's dangerous for the devices that you charge in the long period. You are using a Buck Converter designed for a 12V-24V input and you use a 9V battery...this leads that you have a 5 Volts in output,as it should be, but the output current have a big ripple and this mean that the devices will be damaged in the long period time...specially the batteries!!
Is the reason you put that piece of plastic on the bottom so there was a barrier between the circuits and the metal? So that way no stray electrical signals traveled through the device?
This is more simple than this: You need: Car charger, 9-volt battery snap, 9-volt battery, charger, (any color) duct tape, tools First use one tool and then remove the front part of the car charger. Now remove all parts of the car charger. Use a 9-volt battery snap. The + (red wire) should be from the center of the car charger. The - (black wire) should be the one from the silver ends on the car charger. Now use the (any color) duct tape and then tape it around between the red wire and the part of the car; also same as the black wire (between it and the car charger part). Carefully use gloves to protect you from electricity. Connect the 9-volt battery (Kodak MAX, ShopRite, Kirkland, etc.) to the 9-volt battery snap. Use a knife and cut out the empty, 29 cm. height jewelry box. Use the (any color) duct tape and tape it from the 9-volt battery and the front of the car charger.
you would be changing batteries each time the one in use gets discharged ,and buying new batteries.costing money,instead you can add a mini usb charging port to it and using rechargeable batteries.
![Megan Thee Stallion - Neva Play (feat. RM) [Official Video]](http://i.ytimg.com/vi/TpYTyAaTRts/mqdefault.jpg)
I remember watching this in 2016, I wanted to make this so bad but I couldn't really do it as a 9 year old. I still love this idea to this day!
Great idea, would like to mention when having a second battery in the box, place a piece of plastic where the terminals could touch the case. This will stop the spare battery from shorting out and going flat. A great project.
Some 9v batteries might explode if you open them, use thick gloves and a protective mask. The blast is strong enough to blind you
the second backup battery could short-circuit lol
No.
+MoronicArc yes, because it could touch the side of the can
I said No.
you could glue some plastic in to cover the metal. Cut a sheet from a plastic bottle for example.
why woul not short it? i mean, yeah theres a protective layer i'm sure, but the way he placed that spare battery is a tight fit, and you know when you rub 2 metal surfaces one to another, it will scratch the surface resulting in the can may loose its protective layer -if any- and will short it.. not immediatly, maybe never, but if you constantly changing the batteries, it may happen
That is amazing. I love all of the electrical "how to". Thank you so much for the tutorial.
I have already made a iphone charger similar to this on my own...but your makeshift nine volt connector is going to save me money and time..i am in desperate need of one. awesome
I subscribed just because of your intro! Thank you for this informative video!!
Fixing to make me one!! Thanks for the very helpful video. 👍
Thanks for the video! I built one this morning, and I am wondering if you conected the second battery in parallel to increase the current, would that be able to take advantage of the "fast charge" option many newer phones have?
Won't the batteries end quicker
Roman, I am a fan from Costa Rica. I appreciate your videos very much. It amazes me to think how you come up with the tutorials and how your mind works. Thanks again and keep on making more stuff. :-)
because he is a Russian
easier to just go and buy one!
that's right
+yiğit alp Dalyan dollar tree sell white ones that you put batteries in
Not everyone has a local dollar tree store, or even a dollar for that matter.
+J&M I agree and it could be a fire hazard to try and make one. I guess people could try it but they shouldn't be surprised when they burn down there house 🔥
yeah, because getting all these could be even cost money! where would you get wires?
a 9 v battery has only ~400 mah. This wont even charge modern phones half way up.
It better to just use the car charger and go get either 2 6v lamp batteries (i know those thinks are huge) or just take 6 AA batteries.
There are even some 12v batteries for remote controlled cars that are rechargeable and will charge your phone up more than just two times
You bring creativity to an entirely new level. I've jimmy rigged a lot of things in my life but not once have I ever actually considered using a 9v battery to make a 9v battery cap lol
I must admit, i was impressed by that detail as well.
And the amount of times I’ve needed a cap and had 200 dead 9 volts on my desk 😂 (bio med tech)
damn that's a goodURSS soldering iron, i bet i was used to solder cooper wires in T-34's :))
I'm watching how to make stuff and how to survive in the wild when I found out N.korea and u.states might have nuclear war
Louise Masiu actually me to , do you have a specific youtubers channels ?
just one thing, i see potential shorting of the backup battery as it is unprotected in a metalic case. Great idea!! I'm trying it this weekend!
Welcome to mother brother tory, where is safety number 1 priority
To my laboratory*
I like you. You funny. I appreciate.
I dont like this Place.
No one does Lol xD
Lol
the earth need more genius like u!
Is it just me that noticed that it looks like he shorted out the second 9-volt battery when he put it in. Looks like both terminals may have touched that metal box???
Yeah I noticed this should no better than that really
Thank you....Helped me a lot....u could have bought the terminals separately instead of just breaking it from the 9v battery....The video was Helpful 👏
We all know nobody will do it
hehehehe
hissss
I will, I made 7 of them and have it to my friends and family, and making more, it's pretty fun to make
I also made a couple and passed it to family. It makes a great emergency charger. I make my kids pack one when they go hiking or camping.
Don't looks very efficient. How much can charge it in your device?
A spare battery in the box!!!
what a great idea!
BUT.
If you do not put anything non conductive on your battery poles,
they are going to stay in contact with the metal of the box and
even in a few days you may have a surprise when you wish to use it!
good luck!
Their is plastics in the mint holder
useless for newer phones with more than 1000 mAh capacity. Those 9V batterys have an average capacity of 200 mAh.
Buy a powerbank.
I really think the point of this, is a project video, for the fun of the project honestly. Very valid point that it's more practical to just buy a commercial powershot.
Christopher Hampe xD fuckn nerd
Christopher Hampe I have 600mah liion batteries
Not to smart ! ............... Yellow is Plus (+) and Red is minus (-)
Christopher Hampe thats an emergency power bank
I came out of curiosity, then stayed for that "Is that an advanced modern Russian robot" voice :)
it worked thanks
Super great you watch dragon Ball super
i like because u have explained every thing with clarity voice and names of each and every item please carrt on.......... the same thing and one more suggestion pls or explain contents before you show any video it looks so good...........
Who else is here to see it charges with AA battery, not the 9v? F....kk...
easy
if you have a battery casing for it, you'll know what to do.
-idk lol-
Crazy Rushon hacker
Jackie
I thought it was double a
AA batteries would've been a better choice.
Thanks realy muck i had all needed things lying around and i whanted to buy phone charger, but now i can make my own! Thanks!!!!!
Couldn't you connect the second battery in parallel? Also, if the car charger desires 12V, would it be more efficient to offer it the series combination of 18V or starve it with 9V? Cool video, I especially liked what you did with the through-hole soldering. Thank you.
No, that wouldn't work. It wouldn't no, but its the Mexican's fault you know that. I to know that.
it depends on the exact ic on the board. if the IC can handle 18V, i would say that its more efficient, especially because you can discharge the batteries much further and the voltage is still sufficient to power your charger
You can connect two batteries in parallel in a car, but it requires a diode between to bias them in one direction (or relay or "battery isolator"). If you don't, while the circuit is unpowered the batteries will kill one another trying to charge each other in a sort of resonant circuit; dissipating the energy through the internal resistances and connections. I imagine you could do the same thing by salvaging a schottsky diode from just about anything and putting it between the two 9Vs thus giving you nearly twice the energy at the same 9V.
If it’s in parallel same voltrage but amperage is increased
good ideal.. one thing if someone hasnt said it.. insulate the spare battery slot so the top of the battery dont short out an cause a fire or something..
I advice you to isolate the poles of the spare battery, if you don't want to have a portable egg fryer.
That's what I was thinking
But that would ruin it all! An egg-frying phone charger would be awesome!
Does he really think someone will make this
+Kali's Gaming i was thinking that. Its cool and everything but its cheaper to buy the proper thing from the store. Here you need to buy the soldering equipment batteries glue gun and then spend time making it. Its a cool lil project but nah i see these make your own thing videos and be like ill watch and admire your work.
These stuffs are very great for remote areas without electricity. Where your powerbanks cant be charged after depletion.So long you have AA batteries you are good.
I think it's better to use a rechargeable battery🤔🤔🤔🤔...?
right
Nice job but...you need to insulate the extra battery. when you store it inside the "metal" container you immediately shorted the battery and can start a fire.
IS DANGEROUS FOR MY PHONE BATERY IF I USE THIS REGULARY?
Not if you have a 5 volt regulator but most car chargers already regulate the voltage to 5 volts
So no it’s not dangerous just don’t short circuit the battery
"Thank You", thank you very much ☺️ Your presentation was REALLY Really really KOOL 😎
thanks for subscribe my INSTAGRAM: instagram.com/romanursu
hi roman i love all your video but unfortunately i can't make some because I don't have money and my mother won't let but I'll try to keep up watching your videos
much love from fanss
+Abdul Prefect come on man nobody's perfect he's just used to RUclips dont be that hard on him
+Roman UrsuHack рома ответь пожалуйста
+Roman UrsuHack I have all the things for that, and was thinking about it latelly, thanks mate!
Bro your videos are great. Can you please show us how to make a mosquito repellent using a buzzer.
pretty cool, just wish I had the right tools
can you make a video of rechargeable power bank?? and a solar power bank with 18650 battery??
I wouldve done a parallel connection with two 9VDC batteries to double up the ampere hours rather than have the battery free float in the case not to mention the terminals are brushing up against the side shorting it out.
What about if I go through the customs at the airport, will I have issues?
Charge your phone 100% and reach your destination, take some time and make a new charger at your current location. Follow it or else buy a 10000 mah powerbank.
Never try to even take it through the security check in. It would be a serious problem on your end. Because these wiring and cabling on small scale self made devices are strictly prohibited.
:)
Are you serious 🤦🏼♀️
If you use two bateries in serie have 18 volts. the circuits of adapter support 12 ~ 24. improve more duration of system and use the bateries good
1:24 what is this,the liquid if you use to battery cap?
Yeah!
probably some kind of alcohol to clean it so it makes better contact
It looks like flux. It's made of rosin and alcohol.
Roman UrsuHack! I made 10 of these, I recently just made 2 of these with a double head USB charger!
this is not ok, there is not much power in a 9v battery, 300-500 mah maybe
The two batteries could be wired in parallel to boost charging capacity.
Wont that second battery short out against the inside of the metal box?
no idea I'm honestly confused as hell....
+L Lawliet death note is bae
Yes it will so put something on the box where the terminals of the battery makes contact. Rubber or plastic will do.
+Brian Tuazon well didn't he put some plastic from a water bottle in there?
1milylily Well he did but not on the part where the extra battery terminals hits the case.. So if you guys are gonna DIY this put something there..
9v batteries have lower capacity (about 800-900mAh afaik) than most cell phone batteries, so they will charge your cell phone up to 30-40% and keep it alive few more hours. I would use pack of 6x1.5 v batteries for such DIY charger, alkaline ones have capacity up to 2400 - 2600mAh , which allows you to completely charge most of average and popular cell phones. I can't remember exactly , what voltage is needed for LM317 to work normally, probably pack of 4x1.5v will also work.
Warning!
Your Phone has a Maxinum Voltage of 3.7V - 3.8V
And your Original Charger is a Output Voltage of 5V
Your Powerbank is a Charging Voltage of 9V
Its Nice. The Your Phone charge up faster, but it may happen that your Phone Battery may [ LEAK, EXPLODE ] because its overcharge at a High Voltage. I Recomanded you to just buy Real POWERBANK for $1 - $3 in any Shops. You can also buy anything you want. You can also make this PowerBank in your House but your Battery must be in a Low Voltage of 5V
I am telling you for your SAFETY. Thank You!
The USB charger has a step down amp.
cnzuhfibcfhh
+Dejan Brice Step down amp? There are actual stories of phones exploding from circuits such as these, plus the phones don't actually charge from this, despite the voltage input. The thing is, the amperage going into the phone isn't enough to charge it, and would result in a excessive buildup in voltage and in return ruin your phone. Because car chargers usually always have an input of 12v and a decent amperage, the circuit is built to handle THAT and only that amount of wattage input.
did you not notice the step down converter or actually watch the video?
I apperetiate it man but why is the circuit for ? It is for converting 12 to 5 or 4 volts the car gives an out put of 12 volts the circuit in the carger converts it to 5 or smothing thats y roman used the circuit and iphone and any other smart phone when dectects an overvoltage and undervoltage it disconnects the charger immediatly by itself
Seems like a fun project to do as a proof-of-concept, but nothing you should use on a regular basis. Thing is, the cheaper you make it and the less experienced you are, the more that can go really wrong. I'm not saying that you shouldn't try it though. When you want to try this, I'd recommend having a bit of basic electrical knowledge, unlike some other people in the comments.
only problem is a 9V battery typically has a capacity of around 500mAh. it'll charge my phone at a max of 20-30%
yah dumbass
Then this is completely useless. I`ll be going through the 9V like freshly baked bread. And they`re not rechargeable, so that makes it suck even more. I`d just use a boost converter and a 2000mAh 3.7V rechargeable battery and the end game will be much more feasible
Looks like nobody would ever do it, but it was fun to watch
HE REALLY CONNOT MAKE THE BATTERREIS PORTABLE CHARGER. HE REBIULDE IT,HE CONNOT MAKE IT OWN CIRCUIT BOARD,,
What?
is a good idea. I do worry about the charger being designed for 12 volt auto and you are using 9v battery. I wonder if the charger works to its best. I would like to built something like this but have a rechargeable 9v and be able to recharge. The only thing I will question is whether is practical. After reading the milli amp capacity of 9v batteries I find it's like 500 milli amps, that is not very useful for charging a cell phone. Use AA batteries with high milli amp rating to build a better charger.
why do you link your youtubechannel on RUclips? wtf
because people like to post content like this on Social Media, and this water mark is a good way to advertise and be recognized for his effort.
ToastBubbles oh okay thank you
ToastBubbles
FaZe QuanTo every youtuber does.
prevents freebooting
You should line any metal case containing batteries with a non-conductive surface for safety.
It's pretty better put 2 18650 batteries in series which will provide around 8,4 v with a plenty of more capacity in mAh.
it's easier way to charge phone anywhere i loved it..........😊😊😊😊😊😊
Damn man u are genious m defenitely donna make one for myself not because of money problem but because of it uses battries instead of charging it up thats a cool thing
This could be good for some of those make at home Birthday/Christmas presents.
like your style you make the stuff, and the dynamic in your videos. Whatch out to insulate the backup battery in that video...
GREAT REUSE OF THE USED PART. LOVE IT
You should really have a diode in the circuit to prevent back charging although there's probably one in the car adapter circuit.
its really cool and i love it but i would like to make it one step further like recharging the battery not changing all the time it will be really boring and expensive
Mr. romanursu; another good one of your presentations. thank you.
YOUR THUMBNAILS NEVER MATCH THE REAL FINAL PRODUCT, HOW COME??? DO YOU STEAL OTHERS IMAGES?? AND YES I´M YEEELLING!!!
the backup battery is gonna short in that metal can. needs a small bit of plastic to cover the posts
You could put what you need below but very helpful thanks.
tanks, ima really use this, I'm always running out of charge and don't want to stay to the wall plug up.
Thanks for the video! I guess we could also use some of the ideas to power a DIY portable Bluetooth speaker. 😀
The intro is soooo thematically :)
9volt is an over voltage and a risk to device or that metal box the fact that even works is kind of surprising yet it's believable maybe because the cheap car charger take me to run off 12 volt and convert it to 5 volts what is really cheap car chargers will only give you something less than half an amp so if you have anything modern it won't even charge it
I liked most of your hacks. But one suggestion for you and benefit of all. Try using Personal Protective Device such as Safety Goggles, Leather Gloves etc while recording your video. It will prevent injury to you and some of your fans on planet earth at least!
But it's not him, this is a Russian video
If you made a model that uses AA batteries that would be even better. I've got a bunch of rechargeable ones in my house.
...and welcome back to my laboratory where safety is number one priority
Whoops wrong channel
Hehe your not funny
I love your channel very implemented in stuff like this
this guy's voice honestly reminded me of pink sheep in the beginning XDD
Nice job, but I would rather use plastic than metal box, and I always take a red wire as plus, and black as minus.
woooooow...this is AAAAMAAAAZING! You are super smart and talented!
The spare battery if it’s sitting in that tin it will touch the medal and will connect and drain or short a circuit so I wrap the top in electrical tape
This is great if you ever get lost in the great outdoors and need to call for help. Battery low no problem got my altoids charger.
was all excited till I heard you can charge it up to 50% for a quality battery and was like awe... lol
You should fuse the (+) wire as near to the battery as possible.
They sell this at dollar store's for $1 but still pretty cool!!
Thank you So much for your Innovative Idea.............
Love It !
i would like to add a " " "CAUTION" " " to this video. 9 volt batteries are powerful enough to start a fire if left in a dead short condition. putting a 9v battery in the storage position inside of a metal tin as shown in the video is asking for trouble unless the batteries contacts are sufficiently insulated from the metal of the tin case. if the batteries contact points were to come in contact with the tin surface and create a short across the battery, it will cause the tin and battery to become extremely hot, this could lead to burns and or fire, or even rupturing of the battery itself. make sure you take the necessary precautions when putting a battery in a metal container. or storing them with metal items.
That's a seems like a copius amount of work and materials for more than it would cost to buy it. I understand it's probably a fun project while making a small scale Tesla coil is fun too and may give you more power less material
Lol a tweekers dream project not intended as rude ...no disrespect to video or person just being comedic.
Cool project to do for fun, but not for real life use.
$9.99 you can get a pretty decent portable charger without the worries of short circuiting your phone or the charger for that matter.
Great job Roman ! Hello from Czech
How about a battery pack to power a small digital projector (12V/25Amp), since phone battery charger packs don't provide enough power to operate a small portable projector. Likely an old large torch battery or small marine battery should work fine.
The thumbnail is more true 4 aa batteries with a 5v limiter would work you wouldn't need capacitors for this project
good job i build things like this from your ideas.
In my opinion this circuit it's dangerous for the devices that you charge in the long period.
You are using a Buck Converter designed for a 12V-24V input and you use a 9V battery...this leads that you have a 5 Volts in output,as it should be, but the output current have a big ripple and this mean that the devices will be damaged in the long period time...specially the batteries!!
Is the reason you put that piece of plastic on the bottom so there was a barrier between the circuits and the metal? So that way no stray electrical signals traveled through the device?
This is more simple than this:
You need: Car charger, 9-volt battery snap, 9-volt battery, charger, (any color) duct tape, tools
First use one tool and then remove the front part of the car charger. Now remove all parts of the car charger.
Use a 9-volt battery snap. The + (red wire) should be from the center of the car charger. The - (black wire) should be the one from the silver ends on the car charger.
Now use the (any color) duct tape and then tape it around between the red wire and the part of the car; also same as the black wire (between it and the car charger part). Carefully use gloves to protect you from electricity.
Connect the 9-volt battery (Kodak MAX, ShopRite, Kirkland, etc.) to the 9-volt battery snap. Use a knife and cut out the empty, 29 cm. height jewelry box. Use the (any color) duct tape and tape it from the 9-volt battery and the front of the car charger.
you would be changing batteries each time the one in use gets discharged ,and buying new batteries.costing money,instead you can add a mini usb charging port to it and using rechargeable batteries.
Make sure the backup battery is not shortcutting itself by touching the box
The video should be called: How to power up car phone charger from batteries and close it in candy can.
I can’t even do this and yet I’m still gonna watch it. Logic: none
Great job.... but how can we use a soldering iron in times of total blackout?