This is the replacement battery charger for the EY6220NQ. The EY0L11B is a universal charger for both Lithium Ion and Ni-MH batteries between 2.4V and 3.6V. To access charge port slide door to access either port. This system allows for long battery life and faster recharging time. Memory-free top-up charging is achieved by intelligent chargers that also prevent over-charging. Charging time is between 15 and 45 minutes (depending on battery type).