I have about 30 iPod touch devices that connect to a charger with multiple ports on it.
There are 4x 5V/2.4A ports and 4x 5V/1A ports on the device that charges them.
It seems as though the the 5V/1A devices never get charged but I read that the for the Apple cube chargers that come with the devices they are actually the correct ones.
These devices are used until their power is drained and then returned to the charger as evidenced by how many of them I pick up on the charger read
please enter pin number after restart.
The 5V/2.4A charger seems to charge them faster, but the 5V/1A appears to be the correctly rated ones.
The voltage (a.k.a. electrical pressure) going into the devices is the same on both port types, but the amperage (a.k.a. the amount of electricity in the circuit) is much greater on the 5V/2.4A ports;
As I understand electricity, it's a bit like plumbing where too much water will cause a pipe to burst, and in electrical systems, too much electricity (amps) will cause a wire to catch on fire, they are sort of analogous.
I also know that if a battery is fully charged, you really shouldn't leave a device plugged in, it's bad for the life span of the battery.
So my question is:
- Is it dangerous to be using a charger that uses more than the recommend amperage, or can you get away with a little bit more?
- How can I ensure that these devices are taken off the charger when they are full?