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Battery for FF/depth Garmin GPSMap 498?

Well I lucked out and my dad upgraded his FF on the boat and gave me his old Garmin GPSMap 498 for my birthday:cool: I did a quick search on here and found that most guys use a 12v 7a battery but just wanted to check and see if that would work for the unit I just installed as well? Sounds like this humminbird battery is the way to go according to what I've read?


Edit: I forgot to mention that I'm planning on doing a lot of offshore fishing soon so I was concerned about deeper depths draining the battery too fast or the 12v 7a not being strong enough.
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  • Lt.FireDogLt.FireDog Posts: 1,112 Officer
    I don't know if Kevin still has this for sale, but it would work fine for the Garmin.

    From 9/19
    ZimmerNole wrote: »
    ......FYI: I have an extra Humminbird 12V 7AH gel cell battery with trickler charger, New in the box that I'll sell to you once you decide. It's just sitting around and I'm looking to get a little less than what I paid originally.

  • ZimmerNoleZimmerNole Posts: 9,244 Officer
    I still have it for sale, if you're willing to meet up? I'm in Fort Lauderdale just off 95 on SR 84/Marina Mile Blvd.

    I'll sell it to you for $40, you won't have to pay shipping. I believe I bought it for the same price ($45.99 + shipping?) Brand new in box, charger, 1 year warranty (with registration card included)
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  • quatinquatin Posts: 598 Officer
    The data sheet says 14 Watts at 14V, so a 7aH will last less than 7 hours.

    I have an older version of this Garmin and it sucks ALOT of power. They are not meant to be mounted in kayaks. The screen gets really hot with max brightness and under the mid day sun will completely wash out. I built a cover for it with the bottom of a bleach bottle to keep it cool. Also, the cable pins corrodes instantly upon contact with water, so be careful about getting the connectors wet. I don't even touch the assembly until the kayak is washed off and dried the next day.
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