My laptop is always plugged in since I rarely use it away from the house and 
the same was true with my previousl laptop and even after over 5 years it still 
holds a decent charge when I do unplug it.
As other said, modern batteries can handle this easily and the problem with the 
battery that swelled surely was a different issue and would eventually have 
happened regardless. After all look at the Note 7 disaster where devices which 
weren't even plugged in at all burst into flames.

Regards,
Sieghard


-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of 
Mike Arrigo
Sent: Friday, January 12, 2018 12:16 PM
To: [email protected]
Subject: Re: Harming battery if left on a charger all the time

It could harm older battery technologies such as NICD, but with lithium ion 
batteries, when the battery is charged, the charging circuit turns off, there 
is no such thing as a trickle charge for these kinds of batteries, so leaving 
it connected to a charger should be fine.
Original message:
> Hello everyone



> Does it do more harm than good if I leave my iPhone 8 on a charger all 
> the time?

> I have read somewhere that phones and tablets only have so many: 
> charge cycles before they can't hold a charge anymore.

> I have been told by apple that they recommend not: fully discharge the 
> device but top it up regularly. However, I wasn't sure about leaving 
> it on the charger for all of the time. Obviously though, I would take 
> it off if I had to go out somewhere.

> Thanks in advance for anyone who can clear up if leaving on charge is 
> either good: or bad for the overall health of an iPhone 8 battery.

> Daniel

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