The unit inside is actually a Hong Kong version with giant and protruding UK prongs.Ī comparison of three Apple PD chargers, from left to right: 29W, 61W, and 87W. You can basically count the number of 85W+ PD chargers from known brands with one hand. Three years passing by and it is still one of the most powerful PD chargers on the market. I am typing this to see if anyone else has similar experiences.The 87W charger (A1719) that first came with Apple's 2016 MacBook Pro 15 is the most powerful USB-C charger made by Apple. and it DOES charge my MacBook Pro while asleep, and other devices, at the same time (has multiple USB ports). Oddly it DOES charge while asleep, which I know, seems to be contradictory, which is why I suspect apple has some circuity tricks going on. it looks like the 2018 MacBook (maybe earlier ones) is ignoring the 60 watt charger while running. that is there is a constant battery consumption (decreasing power) even under light loads (as evidenced by intel power gadget. good quality) I am testing (for travel purposes), and while its hooked up if I click on the power icon it says 'batter not charging', even while acknowledging the power source is 'power adapter' AND its acting like I am running off of battery. I know that I have a 60 watt rav power charger (i.e. apple has made the charging circuity more complex than the average bear, presumably for good reason. and maybe that was true with older devices, but it appears in the newer 2018 models at least. but starting to think your conclusion is correct.Ī lot of posts in the area of charging with a lower wattage suggest it works (saw 60 watts on a 85 watt Mac), but slower, and if you are running under a light load you are okay. I am not sure I agree 100% with your logic. I use one of these in my kitchen to charge phones, and also to use my laptop without draining the battery on the kitchen bar while I eat breakfast ( ) ( )Ħ) Bad USB-C cables can fry your laptop, make sure to use one that is 'Benson Approved' ( )ħ) Similarly, I use one of these in the car which puts out 15W on the USB-C port, and results in neither charging nor discharging while under moderate use (slightly brighter than half, web browsing, email, Terminal.app/ssh)Ĩ) I don't own a 29 Watt or 60 Watt apple charger, but I would expect both of them to charge the laptop under moderate or even moderately heavy use, and to discharge while under very heavy use. From my experience, a 12W charger will result in slight draining while using moderately (web browsing, email, Terminal.app/ssh, screen at half brightness), which means I could get >24 hours of use in this respect. In that respect, I am still using my original iPad charger which I bought with my iPad 1 without any problemsĥ) Using a lower power charger may result in the battery draining as you are using it, depending on workload. If these things are made properly, this shouldn't matter as these things are designed to be solid state. There are some good 3rd party devices, but you should stick to high quality 3rd parties such as Anker, and not just random no-names from eBay, or random counterfeits from Amazon.Ģ) The number one thing that wears out batteries is high heat, so having your laptop charge while it is sitting on a soft surface, or storing it in a parked car, etc is going to wear it out faster than anything else.ģ) Faster charging will lead to higher heat, so in that respect, a 60W apple geniune charger puts less load on the batteryĤ) Slower charging results in more runtime on the charging circuits in the laptop, and in the charger brick - so a 60W charger will have slightly more wear than an 87W charger, as will the charging circuits in the laptop if you use a 60W (or lower) charger. With that said, charging speed has a few variables to consider on wear:ġ) Quality of the charging device generally - the cheapo chargers you buy on eBay might have poor regulation and have an unstable voltage, a ripple current, or other noise - this has a high likelyhood of wearing out your devices.

I do not represent apple, so of course take everything I say with a grain of salt.

Macbook pro usb c charger wattage