Naked Science Forum

General Science => General Science => Topic started by: Andy Terry on 06/02/2011 18:30:03

Title: Why don't all batteries drain at the same rate?
Post by: Andy Terry on 06/02/2011 18:30:03

Andy Terry asked the Naked Scientists:
   
When some of my battery powered items run out of power, I naturally replace the batteries with new ones.

If I test each "dead" battery with a meter I notice that some will be completely drained whereas others are still fully operational and can be re-used.

Obviously this only happens with items requiring more than one battery wired in series.

Why is this?

What do you think?

Title: Why don't all batteries drain at the same rate?
Post by: gora on 11/02/2011 03:22:11

This is because when they are in series one dead/faulty battery is enough to break the circuit link and hence make the device go down.