AC Charging vs NP-F Battery charging

Wondering what the quickest way to recharge 6K PRO with the battery grip installed would be?
(ie all three batteries)... DC Charger plugged into the camera?
Or remove the grip and charge each battery individually via portable NP-F chargers?
If anyone has direct experience with this I'd love to know?

Definitely the latter option by using a dual-parallel-charger.
I can recommend either the IDX LC2A or the Hawk-Woods DV-MC2.

or the more cheaper amd newer version of the IDX charger

https://www.amazon.com/Wasabi-Power-NP- ... 0813ZB7CX/

Thanks so much Robert and Mark for replying and also sharing those recommendations. I'll go the dual charger that you've suggested.

or the more cheaper amd newer version of the IDX charger

https://www.amazon.com/Wasabi-Power-NP- ... 0813ZB7CX/

No, that one might look like the same, but isn't.
The Wasabi can only charge 2 batteries at the same time with 0.5A - which takes forever.
The IDX can charge both batteries at the same time with up to 1.9A - that's four times faster.
And the IDX comes with interchangeable plates for Sony NPF, Canon BP and LPE, and Panasonic VW/SL batteries.