|
The depth could be the setting is manually set to limit at 60. I find it's best to set it to auto. The battery voltage when fully charged is over 13v and if the only thing connected to the battery is the fish finder and you don't have the back light turned on it could just be that in one day of use the unit has hardly used up any voltage. It should drop a portion of a volt but might be as little as .5 of a volt.
|