Piper 32 Replacement Battery Box STC# SA01582SEMany battery boxes in Piper and Cessna aircraft are 30, 40 or 50 years old and battery acid, vibration as well as time have taken their toll. Acid leaking into the belly of your airplane can severely damage the structure where you can't see it, between the laps of aluminum and the rivets. Be proactive and protect your investment by installing a new "stainless steel" battery box from Bogert Aviation Inc. Benefits STC PMA FAA approved for most Piper