Query: 1 2 without both battery switch
Wireless Portable Charger 30,800mAh 15W Wireless Charging 25W PD QC4.0 Fast Charging Smart LED Display USB-C Power Bank, 4 Output & 2 Input External Battery Pack Compatible with iPhone, Samsung, iPad
Blue Sea 9001e E-Series Master Marine 4-Position Dual Boat Battery Selector Switch - Off / 1/1+2 (Both) / 2