The Type C port is also an increasingly popular choice. You can buy one as preparation. 4 Cell(4S) 16.8V Version It is convenient for you to take it out and use it anywhere.
GTIWUNG 6Pcs 18650 Battery Holder Case with Lead Wire Bundle, 3.7V DIY Battery Storage Boxes Case Single Slot + 10Pcs TC4056 Type-C USB-C Input Interface USB 5V 1A Charger Module
12V 1A INTELLIGENT VRLA BATTERY CHARGER 3 STAGE CHARGING INPUT VOLTAGE 100-240V
lopituwe Portable 12V Power Box USB Outlet Input 0 Port Multi Socket Car Charger Camping And Traveling 4* Input/outputs Home Office Travel Car Truck Vehicle, Power Box, 16.6x11.7x5.7cm
ASKC 11.4V 48Wh B31N1534 Laptop Battery for ASUS Zenbook U5000 UX510 UX510UX UX510UW Series UX510UW-1A UX510UW-RB71 UX510UX-1A UX510UX-CN044T
11.4V 48Wh B31N1534 Laptop Battery Compatible with ASUS Zenbook UX510 UX510UW UX510UX UX510UW-1A UX510UW1A UX510UW-RB71 UX510UW-CN044T UX510UX-1A UX510UX-CN020T UX510UX-CN044T UX510UX-CN216T(4240mAh)
ASKC 15.2V 62Wh C41N1531 Laptop Battery for Asus ROG Strix GL502VY GL502VY-1A GL502VY-DS71 DS74 GL502VS GL502VS-1A GL502VS-1E GL502VS-DB71 GL502VS-FY032T GL502VY-FY023T Notebook 0B200-01940100