At this point it might be better to future-proof the charger and get one of the units that have one USB-C and one normal USB port. The good USB-C units are 3 amp units which will give you a bit more headroom. This Vinsic is very popular with the USB-C chromebook and nexus/pixel users. https://www.amazon.com/Charger-Adapter-Standard-Outputs-MacBook/dp/B014F2NQ36/
(bb: feel free to add your referral tag to that link. I didn’t want to try and then screw up the link. -wsr)
