Sometimes your laptop computer, your lamp or even your car need to be powered and what you have are batteries only.
I have had the experience on using 20 AA batteries (packaged in 15V) to jump start my car.
In case of emergency, maybe you can power EVERY DEVICE which you MUST.
Step 1: What you need
what you need are very simple:
2.aluminum foil for cooking
4.bulb(for this example - desk lamp)
5.some chipboard cut from box
Step 2: Sticky side UP
stick the tape to your table in this way with sticky side UP
Step 3: Stick the batteries
line batteries together with ends up and down
Step 4: Tight the batties
tight the batties as hard as you can by adding more tape
Step 5: Together
the batteries are in ONE package as what the voltage (here 12v) you need
Step 6: Aluminum paper
cut some aluminum paper at the size of this
Step 7: Fold twice
fold the paper twice into this size
Step 8: Cut in size
cut them in size like that
Step 9: Place them
place them under the battery package
Step 10: Fold and tape
fold and tape them to one side of the battery
Step 11: Fold to the other side
fold them to the other side TIGHTLY and type them TIGHTLY
be sure TIGHTLY to make firm contect
Step 12: Connect the other end
connect the other end of the battery like before
Step 13: Battery package finished
the battery package is finished now and you can check the voltage by volt meter. But I don't think you could have one on emergency
Step 14: Type it tightly
round type the battery package twice tightly to make the firmly contacts
Step 15: The emergency desk lamp
now let's make the emergency desk lamp.
cut aluminum paper
Step 16: Fold into these
fold them twice into these
Step 17: Cut the chipboard
cut the chipboard into the shap you prefer for the lamp.
I just did them in straight.
Step 18: Type wires
type the aluminum 'wires' on it
Step 19: Fold
fold the lamp body
Step 20: Sharp cut
give the lamp body a sharp cut on bolding point
Step 21: After cut
you could find out, sharp cut is for the connectors of the light bulb
Step 22: Cover
cover the unecessary 'wries' with type, only two narrow open on each side
Step 23: Shape the other end
shape the other end of the lamp bady and attach it the the battery package as the lamp base
Step 24: Type together
type the lamp body and base together
Step 25: The very important step
this is the very important step.
type the lamp body on the NECK position firmly to get the bulb supportted there
Step 26: Put in the bulb
put the connector of the bulb in along the folding body at neck position then turn bulb clockwise 90 degrees.
The bulb will be held there firmly.
Step 27: Get ready for wiring
get ready for wiring, just type the two ends of the aluminum 'wires' to the end of the battery package.
Step 28: Finished
finished. and the lamp is already shining up
Step 29: Front look
the front look of your new emergency desk lamp
Step 30: The rear look
the rear look of it. it very stable on the table
Step 31: Easy to take anywhere
and it easy to take to anywhere
Step 32: Give a try to power other equipment
Please give a try to power other equipment please.
for my laptop,the package should be 20V,
grabe 14 AA batteries and fix it, I am sure you can...
Good luck being the hero in emergency!