can I use the lightning connector with or without wall jack (110vAC to USB DC) from my iphone 4s to charge my iphone 6s plus?

Is is safe? Will it have detrimental effects? If it will be slower, that might still be OK, so long as no other downside. Looking for additional flexibility, redundancy.

  • Asked about:  Lightning to 30-pin Adapter (0.2m)

1 Answer from the Community

  • Followup: In addition to charging, how about data transfer to a PC?