No auto mount USB flash drive on battery power

[l3ullseye]

There is no auto mount of a USB flash drive in Ubuntu Mate 16.04 on a Lenovo ThinkPad 11e, only after I plug the charger it mounts.

Is there something I can do?

Thanks

[l3ullseye]

I just found this...

USB ports not working on battery power

Using a HP Envy 13 (Skylake), Ubuntu Mate 16.04.1. All USB ports work fine when I’m on AC power. When I’m on battery, USB storage devices don’t get recognised at all when I plug them in. It’s not just that they don’t get automounted, but even doing something like “fdisk -l” or “lsusb” won’t list the storage device.

Is this recommended?