1.QC4.0 is only available in type c to type c port and need QC4.0 supported Cable,  USB port just support QC3.0.

2.When charging two devices,it will be normal charger

Note:

1.4.5V=5A and 5V=4.5A are possible when the output load is compatible with low-voltagequick charging protocols such as Huawei SCP;

2.15V and 20V outputs are possible when the input is 24V (large truck);

Updated again Small  and Save Space

No complicated design, save valuable car space Only 48mm

USB+Type-C output compatible with mainstream fast

Supports mainstream fast charging such as PD3.0,QC4.0+,Huawei SCP,Samsung AFC,MTK PE+,ect

Charge after getting on you car , fully charged when you get off

Charging power can reach 30W(Max), as fast as your original charger

Does no harm to yout battery ,makes speed meaningful

Built-in intelligent chips, intelligent recognition devices, auto-match current, does no harm to batteries,safe quick charge

Upgraded material Fire retardant and flame retardancy PC

Available for two devices ay the same time

Lights up when charging at night

Soft blue indication light for power

Stable connection a perfect companion

Enhanced slip resistant plates on the sides,quick contact m do not fall off

Risks screened give you more safety

More protection , less concerns, stable output, protect your car and mobile phone

1. Overcurrent protection 2.Overpower protection 3. Overvoltage protection  4. Undervoltage protection  5.Overtemperature protection  6.Short circuit protection

Compatible with most vehicles on market

12/24V broad voltage input , compatible with vehicle types

Dual QC3.0 Quick Charging Output

1.Mini and tiny

2.Double U multi-agreement quick charge

3.Intelligent chips

Double QC3.0 output compatible with mainstream fast

Supports mainstream fast charging such as PD3.0,QC4.0+,Huawei SCP,Samsung AFC,MTK PE+,ect