>>64208146
In Metal Gear battery tech was more advanced after WWII than it is right now in reality. I didn't actually know this until I happened to hear it in a codec call in the new MGS remake, it's only a random throwaway line for a meme codec call but it still shows that they had biological batteries invented in the late 40s-50s. This also is the basis for how cyborgs can function at such bullshit levels, Raiden would be useless in Revengance if he had to use realistic batteries to operate his own body.

https://youtu.be/Qk8RS-EZ4hI