Can I replace a 5V 1A charger with a 5V 1.2A charger?

Question

Hello

I would like to know if it is possible - without any risk - to replace a 5V 1A USB charger with another 5V 1.2A charger?
What impact would it have on charging (faster, slower?), and most importantly, could it damage the phone's battery?
Additional information: the battery is 1700 mAh.

Thanks for only responding if you are sure of yourself :)

HOMBOURGEOIS · Accepted Answer

Chargers are simply there to provide a given voltage (usually 5V) and a certain MAX current, which is the value indicated on them.
GPS devices or phones have a battery (usually 3.7V) and their own charging regulator that regulates the charging current and stops the charging when the battery is full.
Therefore, replacing one charger with another that has the same voltage but a higher max current poses no issues regarding charging time or battery lifespan, since the device itself manages its own charging.

fr-darkrod · Answer

The charge will be faster but less precise (in the sense that your battery will lose lifespan).  A 5V 0.8A charger will be slower but more precise.  -- A handyman.

HOMBOURGEOIS · Answer

it will be exactly the same, not faster and no worries as long as it's 5V

for darkrod it has no influence on the battery's lifespan whether it's 0.8 or 1.2 A since the charging is usually done at 1/10 (slow) or 1/2 (fast) so 0.170 or 0.850 A, but these values are only theoretical as each manufacturer does whatever they want with these phones

Luc_74 · Answer

That would mean there is no risk and no drawbacks if it's an occasional use (while traveling, to avoid taking 2 chargers)?

Luc_74 · Answer

@darkod: I would like to charge (alternatively) a Tomtom GPS and a Samsung mobile

@Hombourgeois: It might work for the moment, but does it not have an impact on the battery life or its ability to hold a charge in the long run...?
Hence my question to electronics specialists...

Can I replace a 5V 1A charger with a 5V 1.2A charger?

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