While in a mood to purchase a Peltier strip, I visited the amazon page which stated the specs of a Peltier thermoelectric cooler, one stated 12 V and 92 W and other one stated 12 V and some 77 W.
As I already know power is the product of voltage and current drawn. And the amount of current drawn is dependent on the resistance the circuit has to the battery, the less the resistance the more the current, the more the resistance the less the current. So why should power be part of the electronic instrument's specification?
Will a set of 8 pencil cells (1.5 volts each) are not enough for each one of these two peltier devices? my assumption is that since one will draw 92 watts and another will draw 77 watts so the batteries operating 92 watts device will consume more quickly than the other batteries with 77 watts device. But eventually both can be operated on a 12 V battery with different performances depending on their power requirements, am I right?