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Discussion Starter · #1 ·
I have read some posts about people using 14.4V cordless drill batteries for their sounder. How well do they work? How long do they last and are they very waterproof incase of a rollover? I am looking at all my options and I am trying to decide whether to buy a 14.4v cordless drill with two batteries and charger for $45 or to go the 8 AA batteries option which will cost a bit more.

I have purchased a second hand Navman 4150sx and it can run off 10.5V to 16V.

Your thoughts
 

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Discussion Starter · #6 ·
I already have a 7AH sealed battery from my stink boat that I can use just trying to cut down on weight and space and thought these other options might be better but maybe I will go with the bigger battery.
 
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