A completely new alkaline battery is rated to generate 1.5 volts, but once its output drops below 1.35 or even 1.4 volts, it effectively becomes useless to many devices.

Most (all?) LED flashlights that take a single 1.5V alkaline (or 1.2V NiMH) cell will have a voltage booster, because LEDs require voltages higher than 1.5V.

So, if we the medical device working on two series AAA alkaline batteries (1.5V each), the voltage available to the circuit will be only 3.0V – 0.7V = 2.3V. This will lead to drop in the voltage ...

When a 1.5V alkaline battery dischargesto 0.9V, it still has more than10% of its original energyleft. If you replace or discardthe battery, you wastethat energy. You can, however,use this small ...

CHOICE verdict From the moment you put them in the device until the batteries are spent, Tenavolts rechargeable AA lithium batteries deliver a consistent current at around 1.5V. This means they can ...

The 1.1V limit – when a battery is considered “flat” – was selected based on the suggested test limit for 1.5V alkaline batteries.