Harpuia had never recharged with an E-Tank before, so he didn't really know what to expect when he tried an experimental sip. He might not have had the sort of sensors needed to register taste, but he could definitely recognize a few things, like texture, temperature, and the bright tingle of energy hitting his systems.

He'd barely even tried it before he pulled away, gasping in surprise. "It's really cold!" An astute observation, truly, but what else would you expect from a reploid that sensitive to ice?