as well as a bigger battery.....
(Helder got you covered
https://sudomod.com/forum/viewtopic.php?f=38&t=6720 ![Wink ;)](./images/smilies/icon_e_wink.gif)
)
maybe a decent power module is also not a bad idea...
https://sudomod.com/forum/viewtopic.php?f=38&t=6421
(Helder... ring any bells.... )
but for me, the main concern is the heat this is going to generate when in use (heatsink and cooling might be a must too).....
as the Pi3 B+ isnt as cool as everyone might think (if you know what i mean)...
(its basically the same CPU, with just less RAM... )_
especially in a confined space as something like a DMG shell, or smaller.....
.