How can I check the battery level? If you press the top button, a small LED lights up. Its color and state indicate the battery level. Blinking red: LowYellow (blinks twice): Greatly reducedYellow (blinks once): Slightly reducedSteady green: Mostly charged Related articles How long does the battery of the Pokémon GO Plus + last and how can I charge it? My Pokémon GO Plus + doesn’t work. Does Pokémon GO Plus + record sound? How can I disable vibration on my Pokémon GO Plus +? How can I turn off the lights in the buttons?