When you put a set of batteries in parallel (wired so the + sides are together and the - sides are likewise together on the other side) the voltage of the batteries are added together as an example 1.5 + 1.5 = 3.0 volts.
When you put a set of batteries in series putting one batts + side to the others - side and the free ends are wired to the device the voltage stays the same, but the available current increases (mAh) depending on the battery size.
Is that what you're looking for?
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Brad it's best to add a comment Vs updating your Q so the thread doesn't fall apart and people can follow things.
crwdns2934271:0crwdnd2934271:0 Dan crwdne2934271:0