Emergency Power Supply

by PCfreak in Circuits > Tools

5986 Views, 19 Favorites, 0 Comments

Emergency Power Supply

battery with 75w inverter -charging my Motorola BTHS.jpg
S4200009.JPG
S4200010.JPG
S4200011.JPG
S4200013.JPG
ok this is my first instructible so bear with me , i made this on such short notice because i needed a Power source to use on camping trips so i hope the time i spent on it helps somebody since i didnt have a box t put it in so I used Electrical tape

plus i also can use it when the power goes out i can use it to charge a Cell phone or run the light that i Have Taped on it

materials needed
Sealed Lead Acid Battery (From An Old Dead UPS I already Had, i think its a 7Ah But im not sure )

14-16 Ga Wire (Wally world)

cigarette lighter or Aux power outlet (Wally world)

12v Light (Bass Pro Shops $16.49 )
http://www.basspro.com/webapp/wcs/stores/servlet/Product_10151_-1_10001_67660____SearchResults

And A Switch (Harbor Freight $2.99) (NO LONGER CARRIED)
http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=66306

Heres One Simular from BASS PRO
http://www.basspro.com/PushPull-Switches/product/8921/#chart-container

Tools Needed:
Philips Screwdriver
Electrical Tape
Wire Stripper/crimper

Note: Use Common sense, make sure your connections are good I am NOT responsible for any Damages due to Shorts, reverse polarity (Fried Electronics in General)......................

And Im sorry that some of my pictures are poor thats because my camera's battery died and it would have taken too long to charge so i had to use my cellphone camera







Battery

081909_1945[00].jpg
081909_1951[00].jpg
Since I Already Had My Wiring Made ILL skip that step.
prep your battery
For wraping tape it works best if you turn the battery on the side that you wouldn't be using or have someone hold it for you.start with your aux outlet and switch. wire the Aux outlet directly to the battery then connect your wires to the switch for other opitional accessories like a Light or something

Wiring

081909_2026[00].jpg
081909_2025[00].jpg
Wiring Diagram.JPG
Well this one is self explanatory I've written a wiring diagram for it

Finshing Up

081909_1932[01].jpg
battery with 75w inverter.jpg
battery with 75w inverter -charging my Motorola BTHS.jpg
With everything in place and taped on (temporary) test it with cell phone car charger
Then add an Inverter too

Future Improvements:
Put the Battery in A Box
Mount the AUX Socket,the switch &the light in/on the Box
Maybe A Solar Panel http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=41144
And Charge Controller http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=96728

Plus I didnt have to recycle the battery just the old dead UPS components