Using this Fischer Amps ALC 89 charger is easy. First, connect the correct power supply that comes with the charger to a power outlet. Then, place your 9V battery in the charger. Make sure the battery is properly aligned. Leave it to charge until it's fully charged. As for maintenance, keep the charger in a dry and cool place. Avoid exposing it to water or extreme temperatures. When not in use, unplug the power supply. If you notice any problems, stop using it and contact customer service.
