pianotuna wrote:
myredracer wrote:
pianotuna wrote:
redracer,
The AA li have to have a voltage dropping resistor. I'm not at all happy with them.
You mean an internal one? Why is that and do other Li batteries like that?
The nominal voltage of lithium-ion is 3.60V/cell.
There are different chemistries of lithium cells. The disposable AA and AAA cells use Lithium Iron Disulfide which is 1.5 volts.
There are rechargeable AA and AAA cells which have a buck converter built into each cell.
A dropping resistor will not work. Half of the energy would be wasted in heat and you would get huge voltage swings depending on the amount of current drawn.