Power your Ace 500 transmitter or receiver using this dual mount battery plate. The plate attaches to the bottom of the transmitter or receiver using two 4-40 screws..This Teradek 11-0848 ACE 500 TX/RX battery plate is dual compatible with the Canon LP-E6 and the Sony NP-F550 batteries.This Sony L-series/Canon LP-E6 Bidirectional Battery Plate is compatible with BOTH Sony L-Series Batteries and Canon LP-E6 batteries.