Introduction: Simple 9v Usb Charger in an Altoids Tin
Parts used
Altoids Tin (empty)
5v Voltage regulator-i used a 7805
Female USB port
Wire
Battery clip
Battery
Tools
Soldering Iron
Solder
Drill
A File
Optional
Shrink tubing
Switch
Note:this is my first instructable please tell me how i did :)
Step 1: 7805 Pinning and Usb Pinning
on the 7805:
pin 1-positive in
pin 2-negative (ground)
pin 3-positive out
on the usb:
D+/D- these are data-lines and are not used in my instructable
****EDIT-on the usb the pos and neg are it the wrong spot just flip the position :)
Step 2: Step 1
Grab your 7805 and solder 1 wire to each leg.(if your putting in a switch add 2 to the ground leg).
Solder your positive "in" leg onto the positive lead from the battery.
Now solder one ground wire to the switch and one to the negative wire coming from the battery.
Now solder the lead coming from the switch to the negative on your usb.
From the positive out leg on your 7805 solder a wire from it to the positive wire on your usb.
Step 3: Cutting Holes
Now take your drill and drill holes for your switch and usb.
Then file the holes square.
Step 4: Done.
Now finally add everything to the tin and your good to go!
one tip: you can use the tin as a heatsink for your 7805.
1 Person Made This Project!
- Typicalinventer719 made it!
46 Comments
11 years ago on Introduction
Would this schematic work?
Reply 6 years ago
no becaus you need to use two 100 ohm resisters connecting between the D-, D+, and +5 volt terminals
Reply 11 years ago on Introduction
Rryapolov, your 7805 pin usage is wrong.
Left is VOLTAGE IN
Center is GROUND
Right is VOLTAGE OUT (the one with LED should be the RIGHT one).
Cheers
Reply 8 years ago on Introduction
not necessarily the led on the right pin
Reply 8 years ago on Introduction
not necessarily the led on the right pin
Reply 11 years ago on Introduction
Totally wrong 7805 pinout is 1-input(more than 7V DC) 2- ground 3- output 5V DC
Reply 11 years ago on Introduction
no
10 years ago on Introduction
i used a car charger to usb converter but for some reason it says "charging is not supported with this accessory" what should i do
Reply 8 years ago on Introduction
you're using an Apple device right?
Reply 8 years ago on Introduction
im having the same problem. the usb charger only charges my device for a second, and then gives that error. i have tried it on a blackberry and an old ipod and they worked fine, but as soon as i connect to my phone (i use an iphone 5 ios 7.x.x) it gave the error
Reply 6 years ago
use two 100 ohm resisters connecting between the D-, D+, and +5 volt terminals
Reply 6 years ago
use two 100 ohm resisters connecting between the D-, D+, and +5 volt terminals
7 years ago
Most smart phone batteries are 1500-3300mah.
A 9V battery has 50-400mah and at 500mw load has less than 300mah capacity.
You're also losing 30% of that 300mah thru the 7805 as heat.
Just exactly HOW much does this remaining 210mah charge your phone ???
Ref : http://www.powerstream.com/9V-Alkaline-tests.htm
12 years ago on Introduction
if you connect 2 9v batteries how long will it charge and will i need cooling
Reply 8 years ago on Introduction
itd double the time in theory (dont feel like doing the math) but u would want a really good cooling system set up maybe small fan plus small heatsink
12 years ago on Introduction
Genious idea
Reply 12 years ago on Introduction
wow
Reply 12 years ago on Introduction
this completely FRIED my ipad.... I just got a diff transformer to match the input charger levels, and bam a little ozone later and it NEVER WORKS AGAIN!!!
Reply 8 years ago on Introduction
well a u shouldnt have used the chargers input levels, of course it was gonna fry it at 120 volts
Reply 8 years ago on Introduction
*120 volts ac