18w vs 20w: What's the fastest iPhone 12 Charger?

UPDATE 2: I just retested with an official 20w Apple charger, and the results were pretty much the same as the 18w (see details below).

Percent charged with Apple 20w charger:
10mins - 24% @ 18.06watts
20mins - 44% @ 15.78watts
30mins - 60% @ 14.01watts
40mins - 73% @ 9.46watts

Percent charged with Apple 18w charger:
10 mins - 23% @17.73watts
20 mins - 43% @15.56watts
30 mins - 60% @ 14.15watts
40 mins - 72% @ 9.62watts

I'll do a separate video in the future - but for now I don't see the results as being significantly different from the 18w charger. My suggestion is still to grab an 18w charger and save yourself some cash! Best value USB-C 18w charger (about $10) ➤ https://amzn.to/37H3O3I

UPDATE 1: Someone pointed out that with the iPhone 12 Apple introduced a new charging profile (9v/2.22A). So existing chargers that are larger than 20w wouldn't have that specific charging profile and likely both of the chargers that I tested were charging at the 9v/2a profile - which is why the results were nearly identical. So I need to get my hands on an official Apple 20v charger and try agan!

Still, for the additional cost of a 20v charger, I think this video demonstrates that an 18v charger is more than sufficient in order to fast charge the iPhone 12 (23% in 10 mins!).

Best for iPhone 12 ➡ https://amzn.to/37H3O3I

In this video I test the charging time on an iPhone 12 Pro between an 18w charger and a 20w+ charger. The iPhone 12 can only charger at a maximum of 20watts - but is there a significant difference between using an 18watt charger and a 20watt charger? Jump to the test results to find out: 01:24

Here are the best options for new chargers:

Best value USB-C 18w charger (about $10) ➤ https://amzn.to/37H3O3I
Super small USB-C 20w charger (about $15) ➤ https://amzn.to/327slv0

USB-A 12W two pack ➤ https://amzn.to/2Toa3kv
Note: that you need an older USB-A to lighting cable. The new iPhones only come with a USB-C to lighting cable

Wireless charger 7.5w ($12) ➤ https://amzn.to/3js9cda
Note: this is a super convenient option for charging your phone over night. You will need a USB-A wall charger to plug this into (see above)

Dual USB-C charging options
100w ➤ https://amzn.to/3jBsZap
65w ➤ https://amzn.to/2TmxMBx
36w ➤ https://amzn.to/35zUXOr

USB-C Car charger 20w ➤ https://amzn.to/3juXuhQ
TIME STAMPS
00:00 - Introduction
01:24 - 18w vs 20w test results

Thanks for watching this video!

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