Take the 2-minute tour ×  I recently bought a new phone (Samsung
Galaxy 3) and when the battery is fully loaded, it says like
"Battery fully loaded, pull out the chord". Is this a typo from
Samsung, or would there theoretically be any reason (for battery
saving purposes) to always have it going from the battery, and
not from the chord.  (Ftr my phone is set to Swedish language)
share|improve this question My Nokia telephone displays a
similar message. As it says something like “to save energy”, I
think the explanation for this is not physical but marketing. – 
b_jonas Aug 23 '12 at 10:07  1 Answer 1  This is probably not a
physics question, but anyhow ...  Any modern phone will not
allow it's battery to be overcharged so leaving it on the charge
won't overcharge it. However some phones will cut the charging
at 100% then resume it at around 90%. You may find when you
disconnect the charger that the battery is somewhere between 90
and 100% charged. I don't have an S3 so I don't know if the S3
does this. If it