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How to make 18V battery - Thanks for your help its sorted now :D
Hi Everyone, I have a handheld dremel thing that needs a 18V power source to run at max speed, currently i ma using one 9V battery but the drill doesn't cut anything. SO i need to connect two 9V batteries to make an 18V power source, I have no idea how to do this can one of you geniuses help me ?? lol whoever helps me first wins a prize....... the prize is pride and a pat on the back (lol i hate it when teachers say that) Thanks Guys !!!!
Comments
5 years ago
dumb cake
12 years ago
at leas you have a dremel :' (
12 years ago
you need to connect them in series so... pos to neg to pos and so on untill you reach the required voltage (+)9vdc(-) --->(+)9vdc(-) this will give give the 18vdc your after
12 years ago
try using an old laptop psu they are strong and most are rated at 18V
12 years ago
all i know is to use a A23 12 volt battery, costs nuthin and if it doesn't work for ur needs, omen it and get a bunch of button cell batteries
Reply 12 years ago
aha! combine all of the 1.5V button cells from two A23 batteries to make 18v, tape them together and that is it!
Reply 12 years ago
thats quite a good idea i think ill try that thanks :D
12 years ago
You might try three of the square/rectangle 6v "lantern batteries" in sequence. As a last (expensive,but awesome)resort you could go with three 6v (rechargeable) motorcycle batteries. I don't think 2 of the little 9's will run it.
12 years ago
What was the old battery?
Reply 12 years ago
i used to run it on a single 9V battery, but it needs at least 12V to go fast enough to cut things
12 years ago
9V batteries of the type you show don't supply enough current to run big motors like a dremel. You'd be better off stringing C or D cells together. I suspect that 4 C cells (6V) will work better than the 9V "transistor" cell you're using now...
Reply 12 years ago
. I'm with westfw, xistor batteries aren't going to provide the current you need for full-speed/full-load operation. Look at the cord on the grinder and look at the wires on 9V battery snap connectors.
Reply 12 years ago
. Well, my "drawing" didn't turn out as expected, but you should be able to get the idea
Reply 12 years ago
lol, i understood the drawing, ill try the series method first, but im going shopping tomorrow so ill go to the electronics tore and buy a big battery. Thanks for your help !! :D
Reply 12 years ago
i also have the large 1.5v cylinder shaped ones, would these work??
12 years ago
Just use 9v battery clips. :P Or just connect them together, that works, but wastes the battery's energy.
Reply 12 years ago
what are you talking about? i really dont understand you. do you mean in parallel? thats still 9 volts, but about twice the run time.
12 years ago
wire the batteries in series; the plus of one to the minus side of another