Subject: [FlyRotary] Batteries

Gentlemen,
    I am going to install a p-ported RX8 fuel injected engine with  dual electric systems. What size batteries do I need to be able to  start on both and run on either/or so I can build the battery boxes.  Amp/hr rating - brand ? As this is an aerobatic plane they also need  to be sealed batteries.
Thank you,
Randy

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Hard to beat the Oddysee PC-680. Lots of power, last long, install in any
orientation.

Al