Best fish finder accessories
Get more out of your electronics. Updated Nov 5, 2026
Our picks
1.Lowrance fish finder sun coverProtects the screen between trips.
Check price on Amazon ↗2.Scotty #140 transducer mounting armGreat for kayaks and jon boats.
Check price on Amazon ↗3.12V 10Ah LiFePO4 lithium batteryLight power for a small unit.
Check price on Amazon ↗What to look for
- A sun cover protects the screen from scratches and UV between trips.
- Transducer arms let you add a fish finder to a kayak or jon boat without drilling the hull.
- Check your unit's voltage and power draw before choosing a battery.
Questions anglers ask
Can I use a fish finder on a kayak?
Yes. A transducer mounting arm and a small battery are all most kayak setups need.
What battery do I need for a fish finder?
Most small units run on 12V; a lightweight 12V lithium (LiFePO4) battery is a popular choice. Check your unit's specs.
What fish finder are you running? Tell us on Facebook.