One plus 3T - Manual (Page 11)

11| What’s in the Box Device OxygenOS Safety Information
Dash Charge
Dash Charge sets the new benchmark for quick charging solutions.
A quick 30 minute charge will replenish over 60% of your OnePlus 3’s
battery. By shifting the power management system and heat
dispersion elements to our Dash Charge Adapter, very little heat
ever reaches your OnePlus 3.