Resolved Apple Watch 4 - battery format - is it necessary ?

AjTee

macrumors regular
Original poster
Aug 17, 2018
168
35
Banino, Poland
Hello Guys,

I have a question. Are there any special requirements to format Apple Watch 4 battery or can I just charge it when I want?

Thx for your replies.

Jacob
 

AjTee

macrumors regular
Original poster
Aug 17, 2018
168
35
Banino, Poland
I heard that sometimes some devices need to be discharge to 0% and then recharged. Battery capacity update etc.
 

bandrews

macrumors 6502a
Jul 18, 2008
719
1,689
I heard that sometimes some devices need to be discharge to 0% and then recharged. Battery capacity update etc.
Think that was more the case with NiMH batteries. Li-ion batteries can be charged whenever.
 

Mercenary

macrumors 65816
Sep 17, 2012
1,152
544
Charge when you want. Let it run down as much as you like.

You will never actually get the cells to 0% as the watch realy has around 10% in the cells when the display says 0%. Its just how modern devices work.

You will hear a lot about "Dont EVER let it get to zero! Dont charge to 100%" but that info is a half truth. True, you should never let a Li-ion battery get to 0 or 100 but YOU cant ever do that. The device will stop charging before it gets to the top and never let you run it all the way down. Now, if you somehow could bypass the built in battery management then sure, you can damage the cells. But you cant.

Use it, charge it, enjoy it.
 
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