This handy and economic 6 Volt AC adapter is a non-floating charger used for Sealed Lead Acid (SLA) batteries (6V ONLY). 500 m/a output, 120v/60hz input (standard US 110V 2-prong outlet).
Note: This is a non-floating charger, meaning you cannot leave the battery connected all of the time or it will overcharge and damage the battery (and create a fire hazard).