Can we have multiple batteries?
If you're using a cortex and power expander Yes, you can use 2
If you're using a V5 brain, no
You can read all the rules here
always, ALWAYS check the manual first.
Anything worth doing is worth overdoing. 2016-2017 3249A:Went to Worlds.2017-2019 3249Z:1x Excellencemore memes coming soon...
The question appears to be for ITZ, not Turning Point in which case V5 was not available/legal.