How do Energizer Lithium AA cells work?
Non-rechargeable lithium cells are 3 volts right?
But if they're AA cells, then people will expect a notional 1.5 volts at the terminals right?
So ... what gives? Do they have an internal DC-to-DC converter or what?
The answer is that there are many battery formulations which use lithium, and cells made using them can all be described as "lithium cells".
As far as I can tell, Energizer Lithium AA cells are Lithium Iron Disulfide cells. According to Wikipedia this formulation results in a cell voltage of about 1.4 to 1.6 volts, which should make them broadly compatible with scenarios expecting 1.5 volt cells.
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