How long does pancake batter last in the fridge?

I'm making a packet mix of pancake batter that doesn't lend itself to partial mixes - it's hard to split "1 egg" as an ingredient. How long would pancake batter last in the fridge? Even if it's a worst case of a day or two, I'd still like to know. Please like and subscribe to the channel to get more videos! #storage-lifetime #pancakes #batter