The Evolve2 85 headset supports all-day wireless freedom with up to 37 hours of battery life on a full charge. A charging stand is included to let you recharge when not in use, but it only takes up to 2.5 hours to fully recharge the headset. If you're in a rush and need power for a vital business call or meeting, the stand will give you up to 8 hours of battery life with just 15 minutes of charging.