With out a battery back-up system you may not be able to open your doors, worse yet, your doors may be unlocked.

Most higher quality power supplies have built in battery back-up systems.
They will monitor your AC power and switch over to battery back-up automatically.
Your back-up batteries will charge automatically.
Battery back-up systems are sized to match your requirements, amount of power, amount of time on back-up and distance to locking devices are all factors.

Calculating your requirements can be a difficult task, call us so one of our trained technicians can help your decide which one you need.

Here are two different battery back-up suppliers: