I can understand the argument for:
- increasing portable powerbanks recharge speed, because then you can make the most opportunity of recharging in brief access to wall sockets. The new Powercore+ 26800 PD helps in that regard, slightly, via recharging in 4.8hr. The Powercore 26800 recharges in 6 hours via 20W input (two 5V 2A inputs).
- supporting the maximum Lithium battery which is the 26800 size, but note its 100Wh so the move to a higher Voltage necessarily means a lower mah.
- multiple ports USB-PD chargers, to merge these to reduce the size of the chargers. Anker has not done anything of note in this area.
What I do not see the argument for:
- the increasing output performance of portable chargers. You are carrying the portable powerbank with you all the time, PD is more for tablets / laptops so you are sat down with them for long times, so why not just plug in the portable powerbank for longer.
I for one will never pay a premium for faster output, it is just about being obtuse to deliberately let your device go flat and deliberately ignoring that weight in your pack to then be “surprised” by a need to recharge your device and then “need” a faster charge. Instead, just plug in earlier using a lower cost device.
I have a Powercore 26800, cost me $30. It only outputs 2.4A. That’s fine, when I’m sat down for a time I plug mine in. Way cheaper than the $100 higher prices for the faster chargers.