Here is the guide about the locations of all batteries in Super Rad Raygun game.
Washington DC
Jump on the rockets to get up on the ledge then go right
You can’t miss this one
Stand next to the edge, jump and keep your finger on the left button, and just before you enter the hole, do a double jump while still pushing the left button. There will be a ladder there to climb (you can’t see it)
Cape Canaveral
Right next to the exit, can’t miss this one
Climb down the ladder next to the shop guy
And when you get to the bottom screen, remain on the ladder and do a combination of a double jump and back dash (must have agility set to level 3) to the left
NYC
Ignore the sign pointing left and go to the right instead
At the top of this ladder (after the train part), go right
You will come to a ledge, double jump to the right and land on the roof
MT ST. Helens
Stand next to the wall and shoot it
At the top of this ladder, jump right, turn left and quickly back dash (must have agility set to level 3), and double jump as far as possible to the right, and climb the ladder
Climb the ladder and continue going left, without falling down, until you find it
Volcano Core
Go right once you get to the bottom of the ladder. Be careful of the lava
Prince W. Sound
Swim through the water until you reach the next battery
Don’t go up this ladder just yet, instead double jump and go to the left
After going down the ladder, look to the right and destroy the wall
Valdez
This one is pretty easy to find, just stay on the path and you will see the top of it poking out of the darkness
Grenada
Go down into the water and swim to the right
Behind those bushes next to the tree is a spot to slide. Go left until you find it
Falklands
Complete Robben Island then come back here
Robben Island
Just keep following the path and eventually you’ll find it
Berlin
Drop down, double jump, then back dash
Tehran
Stay on the path and you will come across it
Double jump and back dash once you reach the top of this ladder
You can’t miss this one
Afghanistan
Once you climb up the first ladder, continue walking past the second one and you will come to a third ladder
Right behind those bushes
Dhopal
Drop down this hole and go to the left
Go left after climbing this ladder, then climb another ladder and go left again, and then go down the next ladder
