PRA-MPS3 Batteries

There are no specific batteries for the PRAESENSA system. Any third party battery that outputs at 12v will do. BatteryClerk.ca is a reliable, canadian manufacturer of batteries. Check out this query for appropriate batteries - Search Results

Make sure that the battery has enough amp hours to drive the system for the desired quantity of time. For example, if you have 1000 watts of speakers that you want to be able to drive for an hour on battery -

I = P/V (ohm's law)

I = 1000/12 = 83 amps

So you will need a battery with at least 83 amp hours. Note that you if you cannot find a cost effective battery for your desired aH, you can parallel multiple sources together.