And for pre USB-C Macs, HyperJuice made 100W batteries with some weird cable hacks to work with MagSafe Mac devices. Also consider an external battery for your

And for pre USB-C Macs, HyperJuice made 100W batteries with some weird cable hacks to work with MagSafe Mac devices. Also consider an external battery for your phone when using WiFi Hotspot when outside.