How long it takes for Nikon en-el5 battery to charge?

i just got a nikon coolpix p500 (my first ever camera so i'm a newbie to all of this)… I fear having the battery overcharged or undercharged… So i would really like to know how long should i leave it on to charge?
Added (1). thanks everyone, it just got fully charged as indicated by the green light on my charger:) i really appreciate your help

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How do I get the images off the internal memory of my Nikon Coolpix p600?

I took some very important pictures on my Coolpix p600 without an SD card - how do I get them onto my computer?

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Nikon COOLPIX L24 won't turn on?

Does anyone know why? I know its not the batteries - they work in the XBox controller just fine… I've emptied the memory card, the door thing is all the way closed and yes, the batteries are facing the right directions…

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How to transfer photos from my Coolpix camer to this desk top computer

How to transfer photos from my Coolpix camer to this desk top computer
Added (1). can you answer my question?

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My charged Nikon Coolpix S4100 won't turn on?

I charged my dead camera (Nikon Coolpix S4100) for about 45 minutes, which is usually how long it takes to charge, and when I tried to turn it on, nothing happened. I charged it a bit longer and it still didn't turn on. Any ideas on what's wrong?

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How to fix my NIKON COOLPIX P520 it won't turn on?

How to fix my NIKON COOLPIX P520 it won't turn on?

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