USB-C Laptop Portable battery

[BrownZeus]

Whats up guys,

 

So I'm in new job, traveling often, and sometimes have the misfortune of not always having power available, or conveniently accessible if is it available, so naturally my solution is, portable USB-C charger. I know they're out there, but I wanna choose something thats reliable, I'm on the fence about going with one from your typical OEMs like Dell, Lenovo, or HP, cause well. I trust them with computer creation, I don't with accessories to be entirely honest, however I'm willing to entertain their portable charger options if they're recommended. Anyone have any trusted recommendations? (Preferably cost effective too)