I want to see what a Flame arrestor and explosion resistant battery looks like... A picture to id each of them

Answer 1

A flame arrestor is normally just a metallic mesh which allows air/gas to pass through but prevents a flame by absorbing the heat. There is a picture of one at http://www.enardo.com/products/prod_fda_tifa.htm

I am not sure what types of explosion resistant batteries there are but for a lead/acid one see http://www.ftsinc.com/Hardware/Battery.htm