Idea for multi pack, with style?

[ichaya]

Or: you can get slider switches, such as the familar on/off one, that are multi-way. You could employ one of these to do your jumper-wire from the outside of the box.

Elsewhere I showed my design for a battery level indicator circuit using 4 opamps to show 4 levels. Just a minor change and it could show the state (good/bad) for four separate batteries. Just an idea ...

Yeah I was thinking about a switch for the jumper. The way i'm thinking about it is this.

Set up is Battery 1 negative is used for ground
Battery 3 Positive is hot to moment switch

If you have the switch in position 1.
LI-ION operation Bat1 positive would be jumpered to Batt 3 positive. Battery slot 2 is empty, and electrically off.

Position 2
AA operation.
JUmper would be turned off so that you would have "normal" flow through all 3 batteries.

I saw the thread about the power level circuit, but I think you lost me in the first sentence.


SMALL WORDS. Never studied electrical engineering, so please speak slowly for some of us.

[ichaya]

Yeah I was thinking about a switch for the jumper. The way i'm thinking about it is this.

Set up is Battery 1 negative is used for ground
Battery 3 Positive is hot to moment switch

If you have the switch in position 1.
LI-ION operation Bat1 positive would be jumpered to Batt 3 positive. Battery slot 2 is empty, and electrically off.

Position 2
AA operation.
JUmper would be turned off so that you would have "normal" flow through all 3 batteries.

I saw the thread about the power level circuit, but I think you lost me in the first sentence.


SMALL WORDS. Never studied electrical engineering, so please speak slowly for some of us.

DUH. If switch is in position 1 (li-ion) put battery in slot 1
If switch is in position 2 us "STD" AA batteries in all 3 slots.

The only way I could see frying it, is if you had it in position2, and put 3 li-ion batteries in. You would probably fry the atomizer, or maybe a switch pretty quick, since you would be pushing almost 12 V.