so i guess it's easier just to add a battery and a UPS board and solder it directly sa positive and negative pins ng dc port. i saw a board with step up and step down modules sa shopee hehe
There is a version of the ZTE k10 modem with an external battery,
I ordered the DITO version and noticed that the back cover is different so i decided to open and check the main board and to my surprise there is a JST connector for the battery.
I immediately tested to see if it will work, but...