Re: creek yakker
jonee523 was using a 12v drill battery which looked good for a kayak being compact. I think Perry is accurate in his time estimates on the AA batteries.
I just followed Piranah's suggestion and bought a 6V battery for my bait tank (cuts water pressure on fish about in half for better bait life). I will use my 7Ah 12V battery for my fish finder alone.
As your battery discharges, the voltage drops and depending on your FF, low voltage causes display problems. This starts well before it actually quits working - especially on the color units.
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