New Garmin Striker Plus 4cv- no depth reading.

[Therapist]

These new units are very power sensitive. They consume power like never before. Without adequate voltage to the unit, it does not work properly. Make sure you have adequate power to the unit. I am having to use a Lithium starting battery to maintain adequate voltage for my two units. If this is your only unit, look into a single, 12 volt Lithium battery to power it exclusively. It will also cut down interference from your motor if hooked up to your starting battery. Good luck.

One last thing, check with an outfit called BASS TANK. They seem to be one of the most knowledgeable outfits out there on these new sonar units.

The Bass Tank – Premium Fishing Productshttps://thebasstank.com