There seem to be quite a few 18000mAh "jump starter" battery systems on Amazon. Those would have more capacity than the Anker, but dunno if it is enough.

A number of them include a reasonable complement of laptop/charging adapters etc.

Eg. DBPOWER 600A Peak 18000mAh Portable Car Jump Starter.


Edited by mlord (06/10/2017 11:54)