ScottG wrote:
magicbus wrote:
A laptop already has this functionality built in as it has it's own internal battery.
Correct answer. The brick does not supply any protection however the laptop battery acting as a capacitor does absorb spikes and float through voltage drops, just like a UPS.
Dave
The power supply still has to endure those spikes so SP is still good.
BTW, a capacitor doesn't absorb spikes - it charges and then releases them.
Simpler and cheaper to just to carry a spare power cord for the laptop (including the brick).
Charging and then releasing the battery using the spike is what is meant by absorbing the spikes.
