I'm wondering if the following promotion code for car charger can be used at the same time.
"Receive 1 RAVPower RP-CC01 Universal Dual USB 3.1A DC 5V High Output Car Charger free when you purchase 2 or more RAVPower 5600mAh 5V 1A USB Output External Battery Charger/ Power Bank offered by Sunvalleytek. Enter code 92BSQBHK at checkout. Here's how (restrictions apply) "
Has anyone tried it?