As a battery powers a device, it slowly drains until your device shuts off at which point we normally say the battery is dead. However, that dead battery still has energy left in it.
What happens is as the battery drains, the voltage it supplies to the device drops lower and lower. Certain electrical components inside the device require a minimum voltage to operate. So when the battery’s voltage drops too low, the electronic components quite working, and the device shuts off. The battery isn’t technically dead, in fact it could have as much as 25% of its energy still inside, but it outputs energy at too low a voltage for the device to use.
That’s where we come in! Battery Saver’s Technology is able to take that low voltage energy from the dead battery, and by draining it at a faster rate, boost the output voltage back to a usable level!