battery replacement for coolfire 4 plus (built in lipo ?)

[cloudbusting]

Hi all,i hope i'm in the right forum for this... today i was given a coolfire 4 plus mod..the previous owner has removed the faulty internal battery ..can i retro-fit this mod to take an 18650 ?

 

[dc99]

I dont see why not. I dont remember if I ever changed one out on a coolfire but I have retro fitted a bunch of mods. Just make sure to use a battery with the correct amp rating for the output of the mod