If it is possible it depends on more factors:
- The Gateway needs to add enough power (Gateway Lite BT has 1 Amp power output)
- The matching cable version needs to be used (in case of iPhone with Lightning connection the LIA1GW0 accessory is needed)
- Please note: there are some newer phone models, which require a separate communication for the charging process. The Gateway is not capable for that, it only gives the charging power output. (If the phone requires this communication, then it will start-stop the charging periodically.)