12-13-2019, 07:21 PM
Like Tube Dude says, it's important to not drain the battery way down and to keep it charged up. My sonar has a voltage indicator on the screen so I know when it's time to change the battery. Even though it will still run on 10 volts, that is not good for the battery life. However, the batteries are so cheap online that I prefer to just replace it when it starts taking a dive rather than packing multiple batteries out on the ice to make it through the day. I've had good luck with the no-name Chinese batteries that you can buy on e-bay for less that 15 bucks shipped.
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