Does the magsafe charger shorten iphone 13 battery life?

y_p_w wrote:

It shouldn't. The only issue may be how fast it charges. There's some slight theoretical benefit for battery longevity if the charging rate is limited, but it's not enough for me to worry about it.

I'd say it's so slight as to not even be worth mentioning.

It does not. It's just a charger, only with a different method/technology.

As noted, no, it doesn't.

See here for additional information on charging your iPhone:

When to charge your iPhone or iPad - Apple Community

It shouldn't. The only issue may be how fast it charges. There's some slight theoretical benefit for battery longevity if the charging rate is limited, but it's not enough for me to worry about it.