Can I use the charger charging cable of my previous iPhone 6 for iPhone 12?

Universal, Apple 12 and Apple 6 have the same charging port, the charger is universal, Apple 12 and Apple 6 can **** with the charger.

No effect, Apple 12 with the previous charger will not cause harm to the phone battery, there is no effect. iphone12 support 20w fast charging, iphone12 all series support PD fast charging, Qi wireless charging, but also support MagSafe wireless charging, the user uses 20w fast charger charging for 30 minutes up to Charge up to 50% of the battery.

Because Apple phones are using its own characteristics of the charging data interface, so as long as the interface is the same, you can **** with the charging data cable. And Apple's cell phone basically no fast charging, with what kind of current charging speed are similar.

1, iPhone 12 support previous charger charging, but the charging speed will be slower, it is expected to take 2.5-3 hours to be fully charged.

2, in Apple's official website is currently on sale a few charger models are 5W, 12W, 18W, 20W, 30W chargers, which can charge the iPhone 12.

3, 5W is Apple's long-term charger that comes with the iPhone package, also known as the "5V1A" charger, the slowest speed, charging the iPhone 12 will take 2.5-3 hours to be full.

4, if you have an iPad, then the old iPad charger is 12W, the new iPad charger is 20W, both can charge the iPhone 12, of which 20W is more suitable.

5, you can also buy the 20W charger from Apple's official website for $149, or buy a third-party 20W USB-C charger, which will be much cheaper, usually as little as $40-50.