Battery question

Amp34 · 27 Apr 2006 at 21:37

If I attached two 9V batteries together in parallel (ie the two red wires together and the two black wires together) would that mean anything running off this would have twice the life of just a single battery, say instead of 4 hours 8 instead? Would it cause any problems such as too much wattage or amperage?

I would then just connect the positive and negative wires from the device to the joins where i connected the two batteries together?

Amp34 · 27 Apr 2006 at 21:56

Thanks for that, just making sure it was right before i blew something up.

Amp34 · 27 Apr 2006 at 22:17

A small handheld fan (9v) says it uses 200mA and 200mW.

Amp34 · 29 Apr 2006 at 22:54

Lol thanks for that, I was just wondering as your previous post sounded like ther may be a problem.

Amp34 · 30 Apr 2006 at 01:50

I didnt think of that, thats what it says in the manual. :confused:

Its a single unit with all the things built into a sortof case, It must have some resistors etc on the IC unless the manual is wrong.

Anyway only one way to find out.

Amp34 · 30 Apr 2006 at 02:24

Its not a particularily expensive or important piece so ill have a go and see what happens. I may put the batteries in parallel though as in series it will definitly blow.

Amp34 · 3 May 2006 at 23:03

Just a quick question in a similar vein, what is the max amperage and wattage of a single pp3? I've looked everywhere but cant find any information on the subject.

And yes i did realise Billy was rather, shall we say, out of it