Use this adapter cable to connect a compatible 4-pin Garmin chartplotter with sonar to a MotorGuide trolling motor transducer

With crisp

Or simply use the cover piece to help adapt your GMI/GHC to your older chartplotter

The well-tested marine design has an IP65 rating

1852 Pro Smart lader 12Vdc 8Amp Anoder Use this adapter cable to1852 Pro Smart Charger 12V 8 Amp 9 step charging Desulphation extends battery life Charging: Fast, slow and winter mode LCD display with light Built in battery tester Short circuit proof Charges all batteries including lithium Universal smart chargers that are very easy to use. Supplied with alligator clips and ring cable lugs for mounting on the battery. Specifications Amps: 8 A Voltage: 12 V