Apparently red and black alkaline batteries have different purposes.It's not just the design!?Red batteries have low power output in exchange for long life.So in other words, red is the regular, balanced option...... and black is the high powered one.Black batteries are for when something needs a lot of power in one go.
< Sample Uses >
※ Red Alkaline
• Clocks
• Flashlights
• Remote controls
※ Black Alkaline
• R/C toys
• Pilot lighters for stoves, etc.
