Are the battery of my phone which is Li-ion safe to use?
Yes. Generally, Samsung–approved Batteries in conjunction with the charger
& USB-cable supplied with yourdevice are safe.
Recently, a TV program of Swiss officially broadcasted the test result of EMPA.
*EMPA : Swiss Federal Laboratories for Materials Science and Technology
According to their opinion , general Li-ion batteries are safe. But, EMPA said batteries
may be enough swelled or exploded if used under extreme environment like high
voltage or current not normal situation.
They advised that if batteries are swelled or become hot than before although you have
normally used the batteries, it means that lifetime of the batteries is expired and can no longer
At that time, please replace it to new Samsung-approved battery.