Replacement battery for:
300/302TS Handheld Transmitter
300/302TS Collar Receiver
ET-300/302 Handheld Transmitter
ET-300/302-A Collar Receiver
PG-300/302 Handheld Transmitter
PG-300/302 Collar Receiver
ET-400/402-A Collar Receiver
FT-330/332 Handheld Transmitter
EZ-900/902/903/904-R Collar Receiver
PE-900/902/903-R Collar Receiver
RX-050 Collar Receiver
Note: If you have an RX-090 Collar Receiver you will need the LIPO 3.7V 300MAH BATTERY