Stuck on second boss- any additional energy tanks available to me?

Hey Guys,

I just got to Kraid and at full health and 2 energy tanks he is still absolutely kicking my ass. I can beat phase 1 no problem but in phase 2 I'm a goner. Based on where I am in the game with the varia suit and basic morph ball, is there anywhere I can now go in the game to get some more energy tanks?