Is 1st Party Apple Charger Required for Optimized Charging?

[tiberria]

Does optimized charging work with 20-30w 3rd party charging bricks like Anker, etc., or does it only work properly when using a 1st party Apple charger>

 

[Motionblurrr]

It should work universally with essentially any charger. It's your iPhone that controls how much juice it needs/wants.

Optimized charging also works better if you have more of a normal 'fixed' schedule. If you're erratic, it'll have a harder time knowing when to charge to 80%.

That being said, I would only stick to more OEM chargers like Apple, Belkin and maybe Anker for chargers. Also, Samsung, Google chargers are OK to use as well.