Understanding mah vs ma?

[tesco]

Was just wondering how do you figure out how long a battery lasts if the device uses 100ma and the battery is 600mah?
What is a mah? 600 milli-amp hours?

[Virtualbody1234]

Yes mah is milli-amp hours.

A 600 mah battery can supply 600 ma for 1 hour.
or
A 600 mah battery can supply 100 ma for 6 hours.

Approximately.

[tesco]

kool that makes perfect sense.

Can you explain kwh too? If a fridge uses 400kwh it's not really 400kw per hour is it

[Virtualbody1234]

Yes. Kwh is kilo watts per hour.

1 kwh is 1000 watts consumption for a period of 1 hour
or
1 kwh is 100 watts consumption for a period of 10 hours.

Don't know about your fridge rating. Maybe yearly consumption or something? You better check that.

What exactly does the label say?

[Seedler]

kool that makes perfect sense.

Can you explain kwh too? If a fridge uses 400kwh it's not really 400kw per hour is it

400kw per hour

Do you lyke, own a cooling station or something.

[Virtualbody1234]

He uses it to cool his CPU!

[Seedler]

He uses it to cool his CPU!

Pentium 7?

[harrycary]

The compressor in the frig, particularly the motor in the compressor, would and could draw large amounts of current.

Electric motors, without a doubt, draw large amounts of current in any application or use.

This is why solid state devices, such as flash-based mp3 palyers, have a long battery life. Compare this to hard-drive based players which use up batteries much quicker.